Heidelberg AICurriculum
Track 2 · Beginner
2.3

Perplexity

AI search that cites real sources — not just summaries

9 lessons 2026-08-13 AI-generated

1Overview

A search-first AI assistant, launched in 2022, that pulls live results from the open web into every answer with a link back to each source.

Perplexity is an answer engine, not just a chatbot: every answer links its source URLs so you can click through and verify, which makes it fast for literature triage and cited research. → Always check citations against the original paper — it can occasionally mis-attribute a quote even when the source link is correct.

Perplexity is an answer engine — a chatbot that cites its sources. Below: how to use it for cited research, and the one habit that keeps you safe.

1.2After this chapter you can
Get cited, click-through answers backed by live web sources
Triage recent papers fast — ask for results with DOIs and links
Verify every citation against the original before you trust it
1.3Best for

Cited research and fast literature triage — ask for 'recent papers on X with DOIs' and get a structured, linked summary in seconds.

1.4Watch out

Double-check against the source paper itself — attribution isn't always exact, even when the link looks right.

1.5Free vs paid

Free tier with rate-limited searches; Pro $20/mo (or $200/yr) unlocks advanced models, unlimited Pro searches, file uploads, and API access. Student discount available.

2Lessons 9

2.1 Obtain a cited answer using Perplexity

Perplexity is an answer engine that returns a paragraph answer with numbered citations linking to source pages rather than a simple list of links.

Receive an answer with clickable, numbered citations for your research question

TrySummarize the current understanding of the gut microbiome's role in immune regulation, and give me the sources you used.

Go to perplexity.ai — no account needed for a basic search. Type the question in plain language (any language works) and press Enter. Perplexity is an answer engine: it searches the live web and writes you an answer with sources attached, not a list of ten blue links.

  1. Open perplexity.ai in a browser
  2. Enter your full research question into the input field and press Enter
  3. Read each sentence of the response, noting the numbered markers like [1] or [2]
  4. Hover over or click a citation number to preview the source page
  • You'll see Paragraphs answering your query, each sentence marked with inline numbers that link to source pages listed below
  • Takeaway Treat the generated prose as a draft claim and verify it using the inline citations
  • Check Perplexity returns an answer with numbered inline citations — why should you treat the prose as a claim and the citations as the evidence you still need to check, rather than treating the answer as a finished fact?
  • Cost Basic search is free and needs no account. The deeper modes and saved research threads in later lessons need a free login or a Pro plan.

2.2 Craft precise queries for structured answers

The search box on Perplexity accepts one query at a time, while follow‑up questions inherit the thread context.

Do this first Obtain a cited answer using Perplexity

Receive sharper, better‑sourced answers by specifying scope, recency and output format then refining with follow‑up questions

TryFind 3 peer-reviewed papers from the last 2 years on CRISPR off-target effects in primary human cells. For each: one-sentence finding, the journal, the year, and a DOI or link.

Notice what makes this strong: a number (3), a recency window (last 2 years), a source type (peer-reviewed), a population (primary human cells), and an exact output shape (finding + journal + year + DOI). Vague asks get vague, lightly-sourced answers.

A Perplexity answer to a tightly-scoped query, laid out as a table with columns Paper, One-sentence finding, Journal, Year and DOI/link — each row carrying a source badge such as pubmed.ncbi.nlm.nih
  1. 1 Integration options link external data sources
  2. 2 LLM selection choose underlying engine

Best viewed on desktop — tap Enlarge to read the numbered controls.

A specific ask returns a structured, cited answer. The query named a count, a recency window, a source type and an output shape — so Perplexity replied with a table where every row has a journal, a year and a clickable DOI, plus a source badge. Credit: perplexity.ai ↗
  1. Type your query in the search box, explicitly stating scope and recency (e.g., “peer‑reviewed”, “last 2 years”)
  2. Request a particular format in the same query, such as “as a table with columns finding / sample size / DOI” or “as three bullet points with one source each"
  3. Press Enter or click Search to submit the query
  4. Ask a follow‑up question in the same thread to narrow results (e.g., “now narrow that to in‑vivo studies”)
  5. Add a final clause like “…and list anything you could NOT find good sources for” to surface gaps
  • You'll see A tidy, structured answer where each item carries its own citation, and follow‑ups sharpen it without losing the thread
  • Takeaway Specificity is the whole game: name the scope, recency, source type and output shape — then refine with follow‑ups rather than starting over
  • Check Why does adding a request to list anything it could NOT find good sources for give you more reliable output than asking only for the positive findings?
  • Cost Free. Specific questions also tend to need fewer follow-up searches, which keeps you under the free-tier limits longer.

2.3 Pick the Perplexity mode that fits your query

The mode menu lets you choose where Perplexity searches and how deeply it works, such as Academic or Deep Research.

Do this first Craft precise queries for structured answers

Select the source scope and research depth so answers match your needs

TryWhat does recent literature say about the link between sleep deprivation and amyloid-beta clearance?

Run this twice: once on the default web search, once with the source set to Academic. Compare the citation lists — Academic should pull peer-reviewed papers (e.g. PubMed, arXiv, Google Scholar) instead of news sites and blogs.

Pick the mode to match the job. The composer's menu switches between a quick Search and a multi-step Deep Research (Perplexity's deeper agent — a paid mode here). Source scopes like Academic now live behind the top-right menu. Credit: perplexity.ai ↗
  1. Open the top‑right menu button and choose Academic to limit results to scholarly literature
  2. Click Deep Research to have Perplexity break the question into sub‑steps and draw from many sources
  3. Use Search for a single quick answer when only a brief fact is required
  • You'll see The same question answered twice – a quick web answer with mixed sources and an Academic answer citing journals and preprint servers
  • Takeaway Two dials: where it looks (Academic for citable sources) and how hard it works (Deep Research for multi‑step questions)
  • Check When should you switch Perplexity to the Academic focus and reach for Deep Research, and what kind of source ends up in the results if you leave both on their defaults for a claim you'll put in a paper?
  • Cost Choosing the Academic focus is free. Deep Research is a paid mode — the free plan gives a limited preview, then a cooldown; Pro removes the cap.

2.4 Check each citation in a Perplexity answer

The Links tab underneath an answer lists every page the answer drew on, showing domain, URL and snippet.

Do this first Pick the Perplexity mode that fits your query

Verify that every source linked by Perplexity backs the claim it is cited for

TryWhat is the reported efficacy of the most recent malaria vaccine, and what was the sample size of the key trial? Cite the primary source.

Now do the verification: open the cited source and find the exact efficacy number and sample size yourself. Perplexity can link the right paper but mis-state a figure inside it — the link being real does not make the claim real.

Every answer shows its receipts. The Links tab lists each source with its domain and full URL, so you can tell at a glance which are peer-reviewed journals (PubMed, Cell, Nature) — then open each one to confirm it really says what the answer claims. Credit: perplexity.ai ↗
  1. Click the citation link and locate the exact sentence, number or quote referenced by the answer
  2. Open the Links tab and note the source type shown (peer‑reviewed paper, preprint, press release or blog post)
  3. Look for weak patterns such as precise statistics paired with vague news‑site citations or claims that are absent from the linked page
  4. If an important figure appears, ask Perplexity to "double‑check that number against the primary source and quote the exact sentence", then open the source yourself to verify
  • You'll see The opened page either contains the exact quoted statement or shows a mismatch you can spot
  • Takeaway A citation is only a starting point and must be opened and checked to guarantee accuracy
  • Check Why is a correct, clickable citation still not sufficient evidence that a specific number or claim in a Perplexity answer is accurate?
  • Cost Free — verification is a habit, not a feature. It costs you a click and saves you from publishing something wrong.

2.5 Create a research workspace with your own files

A Space is a saved research thread with uploaded files and standing instructions; queries inside it are answered using those documents.

Do this first Check each citation in a Perplexity answer

Build a Space that stores your documents and instructions so every query uses them

TryCreate a Space called "Microbiome review", upload 2–3 PDFs of papers you're reading, add the instruction "Always cite which uploaded paper each point comes from", then ask: "What do these papers disagree on regarding methodology?"

A Space is a saved research thread with its own sources and standing instructions. Questions asked inside it search your uploaded files and (optionally) the web, with citations back to your own documents.

  1. Open Spaces in the left menu and click New Space, then name it for the project
  2. Click Add Sources to upload papers, protocols or notes, or attach links
  3. Use the Add Instructions control to set standing rules such as concise answers or required source citations
  • You'll see A persistent hub showing uploaded papers as sources, standing instructions applied to each answer, and citations linking back to your files
  • Takeaway A Space turns Perplexity into a reusable workspace where your own sources and rules drive every response
  • Check What does adding the instruction to flag any claim your uploaded sources do NOT support prevent that a plain Spaces setup without that instruction would not catch?
  • Cost Spaces and file uploads are a Pro feature. Direct file attachments per thread and file-size limits apply; check Perplexity's current limits as they change.

2.6 Verify a claim using Perplexity

A verification workflow where Perplexity returns a verdict on a statement along with supporting documents.

Do this first Create a research workspace with your own files

Confirm or refute a factual assertion and retrieve the original source for each outcome

  1. Open Perplexity’s homepage and locate the query field
  2. Enter the claim into the query field and press Search (or hit Enter)
  3. Read the yes/no verdict and note the citation numbers displayed beside each supporting statement
  4. Click each numbered citation link to open the source in a new tab
  5. Verify that the opened page contains the referenced information
  • You'll see A yes/no answer with numbered citations, each opening a page where the claim can be inspected directly
  • Takeaway Cross‑check every cited document to ensure the information truly supports the verdict
  • Check Why is opening every numbered citation link still necessary even after Perplexity has already given you a yes/no verdict on the claim?

2.7 Generate a cited literature overview with Perplexity

A quick, source‑linked snapshot of a research topic returned by the Perplexity answer engine.

Do this first Verify a claim using Perplexity

Create an overview of any academic area that includes clickable links to the original papers

A Perplexity answer table of three papers with journal, year and DOI columns.
  1. 1 Integration options link external data sources
  2. 2 LLM selection choose underlying engine

Best viewed on desktop — tap Enlarge to read the numbered controls.

  1. Open https://www.perplexity.ai in your web browser
  2. Enter a concise research question into the query box and press Enter
  3. Scan the answer block for inline citations marked with numbers or brackets
  4. Click each citation link to open the corresponding paper or article
  5. Copy the full answer, including citation numbers, into a document
  • You'll see An answer paragraph summarising the topic together with numbered hyperlinks that open the original sources when clicked
  • Takeaway Cited AI answers let you gather a literature map instantly while preserving traceability to primary sources
  • Check What does clicking through every citation number in a Perplexity literature overview let you confirm that copying the answer text alone would not?

2.8 Create and return to a citation‑rich conversation in Perplexity

A persistent conversation space on Perplexity that keeps related questions and their citations together for later reference.

Do this first Generate a cited literature overview with Perplexity

Start a threaded session, add follow‑up queries and reopen it later with all answers and citations preserved

  1. Log in to Perplexity (or continue as a guest) and click New Thread to open a fresh conversation window
  2. Type your first question and press Enter to submit it
  3. Enter a follow‑up question that builds on the previous answer and press Enter
  4. Close the browser, reopen Perplexity later, and click the saved thread name in the sidebar to resume the session
  • You'll see A single view showing multiple Q&A pairs, each with clickable citation links that persist after reopening the site
  • Takeaway Persistent threads let you build an organised, citation‑backed knowledge base across sessions
  • Check What happens to your earlier questions and their citations when you close and reopen a Perplexity thread later, and why does that make a thread different from a one-off search?

2.9 Generate a cited literature or market scan

Pro Search is the mode that turns one query into a short multi‑step search‑and‑synthesize pass, optionally extended by Labs for deeper reports.

Do this first Create and return to a citation‑rich conversation in Perplexity

Produce a verified, structured report for a research topic or market analysis and store it in a Space

TryResearcher: "Give me a structured scan of the last 3 years of literature on lipid nanoparticle delivery for mRNA therapeutics — group by approach, cite peer-reviewed sources, and note open questions." Founder: "Scan the current market for at-home microbiome testing kits — list the main companies, their pricing, their claimed science, and link a source for each."

Pick the prompt that fits you. Run it in Academic + Pro Search, then verify the load-bearing claims by opening their sources — this is the full workflow, not a single query.

  1. Create a Space for your topic to contain all results and future refinements
  2. Select the appropriate mode using Pro Search and request a structured output such as grouped sections or a table with sources per row
  3. Add follow‑up prompts like “only in‑vivo studies” or “include each company’s funding stage” to sharpen the scan without restarting
  4. Open each citation link from the results and mark any unverified claims as “unverified”
  5. If you have a Pro or Max plan, enable Labs to run deeper multi‑step research and generate a fuller draft, then verify its output as before
  • You'll see A grouped report where each claim includes its source, weak points are flagged, and the document resides in a Space you can revisit and share
  • Takeaway Scanning follows a repeatable workflow: define a specific ask → choose the right mode → request structured output → refine with follow‑ups → verify sources → keep everything in a Space
  • Check Why is a complete Perplexity research scan described as a workflow rather than a single question — and what marks the point where output becomes something you can act on?
  • Cost The scan and verification work on the free tier (within Pro Search limits). Spaces, higher limits, and Labs-style deep reports are Pro/Max features.

3You’ll know it worked 67 checkable outcomes in this chapter

  • User sees inline links to original papers in the answer
  • The generated brief contains citations for each point and covers recent news, funding history, hires, priorities, and public comments from the CTO or CFO
  • The response style and accuracy align with expectations for that model (e.g., more creative prose from Claude)
  • The output lists recent study titles, key results, and links to the original publications
  • The page shows a live URL that can be opened in any browser
  • You receive an email or in‑app notification with fresh results on schedule
  • Open the exported PPT file and see that all requested sections and visuals are present
  • When running a new computer task, select the custom skill and see it applied automatically

67 outcomes in all — one per recipe below.

4FAQ, Tips & How-to 89

one problem, one solution, one action

Research & data tools11

How-to Perplexity Scientist +1

A starting map of the literature with real links, not a black-box summary.

~3 min · no code AI-generated
How-to Perplexity Founder +3

A fast, checkable briefing instead of an unsourced guess.

~3 min · no code AI-generated
How-to Perplexity Creator +2

A quick, checkable verdict with links — not an unsourced yes/no.

~3 min · no code AI-generated
How-to Perplexity Scientist

Need to keep related questions and citations together

One organised, citation-rich thread instead of scattered one-off searches.

~3 min · no code AI-generated
How-to Perplexity Founder +1

Need to track what’s changed with competitors or regulations

A lightweight, verifiable watch on the things that move, without a subscription service.

~3 min · no code AI-generated
How-to Perplexity Finance +1

A cited, up-to-date set of inputs instead of an outdated number from memory.

~3 min · no code AI-generated
How-to Perplexity Finance

Need a current regulatory brief

A cited briefing on the current status, effective dates, and key requirements, ready to pass to your auditor or legal team.

~3 min · no code AI-generated
How-to Perplexity HR / People +1

Where can I find accurate salary benchmarks for a role?

A cited pay range you can present to a hiring manager or use in a pay-equity review.

~3 min · no code AI-generated
How-to Perplexity Support

You reply with accurate information, not a guess — and you have the source if the customer escalates.

~3 min · no code AI-generated
How-to Perplexity Investor

Need a fast, sourced market map of sector players

A first-pass market map with real sources in minutes, not a black-box summary you can't defend in IC.

~3 min · no code AI-generated
How-to Perplexity HR / People

Where can I find accurate salary benchmarks for a role?

A cited pay range to anchor the client conversation, not a number from memory you can't defend.

~3 min · no code AI-generated

CRM & sales1

How-to Perplexity Sales

Need a fast, fact‑checked snapshot of a prospect

A 5-minute pre-call read that makes you sound prepared, with every fact checkable.

~3 min · no code AI-generated
How-to Perplexity Everyone

Hovering over a citation shows the underlying webpage without leaving the answer

AI-generated
How-to Perplexity Everyone

Need a response in a specific format

Requesting a specific answer format (table, bullet list) yields structured results that are easier to verify

**A specific ask returns a structured, cited answer.** The query named a count, a recency window, a source type and an output shape — so Perplexity replied with a table where every row has a journal, a year and a clickable DOI, plus a source badge. Credit: perplexity.ai ↗
**Free.** Specific questions also tend to need fewer follow-up searches, which keeps you under the free-tier limits longer. AI-generated
How-to Perplexity Everyone

Want to tweak an answer without starting over

Using follow-up questions keeps context, sharpens answers, and saves free-tier quota

AI-generated
How-to Perplexity Everyone

Can't tell which topics lack reliable sources

Appending a request for items you could not find highlights gaps in the literature before you trust the results

AI-generated
How-to Perplexity Everyone

Need recent CRISPR off‑target data

A concrete prompt demonstrates how to combine scope, recency, and shape for a tidy answer

~3 min · no code AI-generated
How-to Perplexity Everyone

Need only scholarly articles

Select Academic to pull only peer-reviewed papers and preprints, ensuring citable sources

**Pick the mode to match the job.** The composer's menu switches between a quick **Search** and a multi-step **Deep Research** (Perplexity's deeper agent — a paid mode here). Source scopes like Academic now live behind the top-right menu. Credit: perplexity.ai ↗
Choosing the Academic focus is **free**. **Deep Research** is a paid mode — the free plan gives a limited preview, then a cooldown; **Pro** removes the cap. AI-generated
How-to Perplexity Everyone

Want every answer to follow your style and citation rules

Ensures every answer follows your preferred style, citation policy, or expertise level

**Spaces** turn Perplexity into a project hub — from any thread's menu choose **Add to Space**, then upload your own papers as sources and set standing instructions so every answer cites your files, not just the open web. Credit: perplexity.ai ↗
Spaces and file uploads are a **Pro** feature. Direct file attachments per thread and file-size limits apply; check Perplexity's current limits as they change. AI-generated
How-to Perplexity Everyone

Need a fast market or competitor snapshot

Produces a quick, source-linked overview of commercial offerings

The scan and verification work on the **free** tier (within Pro Search limits). Spaces, higher limits, and **Labs**-style deep reports are **Pro/Max** features. AI-generated
How-to Perplexity Everyone

Want to tweak your search results without restarting

Lets you narrow or expand results efficiently by asking targeted follow-ups

AI-generated
How-to Perplexity Everyone

Can't afford an AI research assistant

Get discounted or free Perplexity Pro by verifying a .edu email address

~3 min · no code Perplexity FAQ — Pro ↗ AI-generated
FAQ Perplexity Everyone

What exactly is Perplexity, and how is it different from just Googling something?

Perplexity is an AI-powered answer engine that searches the web in real time and writes a direct, readable answer to your question — with numbered citations you can click to verify every claim. Unlike Google, which returns a list of links you read yourself, Perplexity synthesizes multiple pages into one response. Unlike ChatGPT, it always cites its sources by default and pulls from live web content. Think of it as a research librarian that reads several articles for you and hands you a summary with footnotes.

g2.com ↗ AI-generated
FAQ Perplexity Everyone

What are Spaces and should I use them for a research project?

Spaces are persistent, project-specific workspaces where you can group related threads, upload your own files (PDFs, Word docs), set custom instructions, and invite collaborators. For a literature review you could create a Space, upload relevant PDFs, and ask questions that search both your files and the web at once. Spaces are useful for multi-session or group research rather than one-off questions.

FAQ Perplexity Everyone

Can I use Perplexity to cite sources in a paper — will my professor accept those citations?

Perplexity can help you find sources, but never copy a citation from it into your paper without verifying it first. Perplexity has been documented to produce citations with incorrect details or that don't support the stated claim. The correct workflow: use Perplexity to find a relevant paper, click the citation link, open the original article, read and verify it yourself, then format the citation from the actual paper. Professors expect citations to real, verified sources.

jenni.ai ↗ AI-generated
FAQ Perplexity Everyone

Does Perplexity hallucinate — can it confidently tell me something completely wrong?

Yes. Perplexity can state incorrect information with the same confident, citation-decorated formatting it uses for accurate information. A known failure mode is that its synthesis layer makes claims that go beyond, or contradict, what the cited source actually says — while still attaching that source's URL. This is why clicking through every cited source to verify it is non-negotiable for academic work.

g2.com ↗ AI-generated
FAQ Perplexity Everyone

What is Deep Research and how is it different from a regular Perplexity search?

Deep Research is Perplexity's most thorough mode: it runs many web searches automatically, reads dozens of sources over a few minutes, and produces a structured report with many citations. A regular search is near-instant and uses a handful of sources; Deep Research is much slower but produces something closer to a preliminary literature review. Use it to generate a starting-point overview, but still verify every citation.

FAQ Perplexity Everyone

Should I use Perplexity instead of Google Scholar or PubMed for finding biology papers?

Perplexity works best as a discovery and orientation tool, not a replacement for PubMed or Google Scholar. It's good for quickly understanding a topic, identifying key papers, and generating search terms — but it covers mainly open-access content and can misattribute information. For a real literature review, start with Perplexity to get oriented, then go to PubMed or Google Scholar directly to search systematically and access full texts.

libguides.utk.edu ↗ AI-generated
FAQ Perplexity Everyone

What is a 'Pro Search' and why does it use up my daily limit?

A Pro Search is a more powerful, slower search that breaks your question into multiple steps, runs several sub-queries across the web, and compiles a thorough, well-sourced response — rather than a quick one-pass answer. It's best for complex questions like comparing research findings. Regular searches are unlimited and instant; Pro Searches are metered because they use significantly more compute.

glbgpt.com ↗ AI-generated
FAQ Perplexity Everyone

Can I trust the citations Perplexity gives me? Could it make up a source?

You should not trust citations without verifying them yourself. Perplexity can 'hallucinate' — attaching a real-looking URL to a claim that the source doesn't actually support. A 2025 academic study found only about a quarter of AI-generated references were fully correct, with a large share erroneous or fabricated. The rule: click every numbered citation, open the actual page, and confirm the claim is there before using it. Treat citations as research leads, not finished references.

jenni.ai ↗ AI-generated
FAQ Perplexity Everyone

What is Academic focus mode and how do I turn it on?

Academic focus restricts Perplexity's results to peer-reviewed journals and scholarly databases rather than the general web. Click the 'Focus' control in the search bar and select 'Academic' — you can switch modes mid-conversation without losing your thread. It's the fastest way to surface citable scholarly sources, and it is available on the free tier.

pageon.ai ↗ AI-generated
FAQ Perplexity Everyone

Can Perplexity actually read papers from PubMed or full-text journal articles?

Perplexity can search and cite papers from sources like PubMed, arXiv, and Semantic Scholar — but full-text access depends on whether a paper is open-access. For paywalled articles it typically cites the abstract only. If your university library gives you journal access, follow the citation link and open the full paper there. Open-access biology content is well covered; closed-access papers in subscription journals are not.

libguides.utk.edu ↗ AI-generated
FAQ Perplexity Everyone

How is Perplexity different from ChatGPT for finding scientific sources?

Perplexity is built as a search engine first — every answer comes with real-time web citations by default, and Academic focus targets peer-reviewed papers directly. ChatGPT is a conversational assistant that is better at writing and brainstorming, but does not cite sources unless you use its Deep Research mode. For finding and verifying sources, Perplexity is the better starting tool; ChatGPT is more useful once you already have sources and want help understanding them.

libguides.utk.edu ↗ AI-generated
FAQ Perplexity Everyone

What are the different focus modes and which are useful for biology research?

Perplexity has several focus modes: Web (general internet, default), Academic (peer-reviewed databases — most useful for biology papers), Social (community discussions), Finance, and others. For finding scientific sources, Academic is the go-to; Web is useful for broad background reading. Core focus modes including Academic are available on the free plan; Deep Research requires Pro.

glbgpt.com ↗ AI-generated
How-to Perplexity Everyone

Need answers only from a certain site or date range

Perplexity supports Google‑style operators like site: and after:. By appending these to your query you limit the search to a particular domain or time range, ensuring more relevant and up‑to‑date answers.

Paul J Lipsky ↗ Lesson → AI-generated
How-to Perplexity Everyone

I keep retyping the same prompt

Typing '/' opens a menu where you can save custom prompts as shortcuts. These shortcuts auto‑populate the query box with predefined instructions, saving time on repetitive tasks.

Paul J Lipsky ↗ Lesson → AI-generated
How-to Perplexity Everyone

Want regular research updates

Perplexity Pro lets you schedule a query to run automatically at set intervals. This creates a hands‑free workflow for regular research or monitoring tasks.

Paul J Lipsky ↗ Lesson → AI-generated
How-to Perplexity Everyone

Need answers that rely only on your uploaded docs

Spaces act like private workspaces where you can upload documents, add URLs, and set source toggles. Queries inside a space draw only from its contents (and any enabled sources), letting you ground answers in your own data.

Paul J Lipsky ↗ Lesson → AI-generated
How-to Perplexity Everyone

When one model isn’t right for the job

Perplexity Pro lets you choose between models like Claude, Gemini, GPT, or the default ‘best’. Different models excel at research, writing, multimodal input, or logical reasoning; swapping them tailors output quality to the job.

Paul J Lipsky ↗ Lesson → AI-generated
How-to Perplexity Everyone

Need a quick fact, an in‑depth report, or a generated spreadsheet

Perplexity offers three modes: Search (fast fact‑finding), Research (multi‑step deep dive with many sources), and Labs (AI agents that generate documents, spreadsheets, etc.). Selecting the right mode balances speed versus thoroughness.

Paul J Lipsky ↗ Lesson → AI-generated
How-to Perplexity Everyone

Want AI answers from Chrome’s address bar

By adding Perplexity as a custom search engine in Chrome (or any Chromium browser) and setting it as default, you can invoke AI‑powered answers directly from the address bar, streamlining access.

Paul J Lipsky ↗ Lesson → AI-generated
How-to Perplexity Everyone

Keep unpublished research private

Turning off AI data retention prevents Perplexity from storing the content you input, which safeguards sensitive results before publication. This setting gives researchers confidence that their proprietary data stays private.

Andy Stapleton ↗ Lesson → AI-generated
How-to Perplexity Everyone

When I need specialist answers for research

Customizing the occupation, field, and response style tells Perplexity to answer as a specialist, yielding more academic tone, synthesis first, then evidence, then gaps. This improves relevance for research queries.

Andy Stapleton ↗ Lesson → AI-generated
How-to Perplexity Everyone

Keeping literature‑review prompts, PDFs and guidelines together

Spaces act like dedicated workspaces where you can store prompts, uploaded PDFs, guidelines, and custom instructions for a single research task, eliminating repetitive file uploads.

Andy Stapleton ↗ Lesson → AI-generated
How-to Perplexity Everyone

Need a repeatable way to draft abstracts

Skills capture a sequence of prompts and formatting rules that can be invoked repeatedly, ensuring consistent output for tasks such as drafting abstracts or tables.

Andy Stapleton ↗ Lesson → AI-generated
How-to Perplexity Everyone

Need search to pull Wiley articles and Drive docs

Connectors link Perplexity to external repositories, ensuring that search results draw directly from trusted sources like Wiley journals or your own stored documents on Google Drive.

Andy Stapleton ↗ Lesson → AI-generated
How-to Perplexity Everyone

Need a quick literature review draft

The “Computer” feature runs multi‑step, parallel agents that gather sources, synthesize findings, and output a formatted draft, speeding up early‑stage review work.

Andy Stapleton ↗ Lesson → AI-generated
How-to Perplexity Everyone

Need a quick overview of recent clinical studies

Perplexity offers ready‑made workflows (e.g., “Research Update: summarize recent clinical studies”) that automate routine summarization tasks without custom coding.

Andy Stapleton ↗ Lesson → AI-generated
How-to Perplexity Everyone

Want the AI to keep your preferred tone in every chat

The profile tab lets you add custom instructions that apply to every conversation, similar to ChatGPT's custom instructions. This ensures the AI consistently follows your preferred tone, style, or role without re‑entering prompts each time.

Jeff Su ↗ Lesson → AI-generated
How-to Perplexity Everyone

Want answers only from academic papers or news feeds

Focus lets you restrict which categories of sources (e.g., academic, news, social) Perplexity searches, improving relevance and trustworthiness for specific queries like scientific data or real‑time news.

Jeff Su ↗ Lesson → AI-generated
How-to Perplexity Everyone

Want the same AI role and past answers in every new chat

Collections store a series of related threads plus an overarching instruction (e.g., “act as a travel agent”). New conversations within that collection inherit the role and can reference prior answers, streamlining multi‑step projects.

Jeff Su ↗ Lesson → AI-generated
How-to Perplexity Everyone

Want answers from a private PDF you upload

Free users can attach PDF files (including converted images) so Perplexity can cite information directly from those documents, enabling Q&A on private or offline content.

Jeff Su ↗ Lesson → AI-generated
How-to Perplexity Everyone

Hitting the free five‑search limit

Pro users get up to 600 searches per day and a richer set of sources, resulting in more detailed answers. This is useful for heavy research tasks where the free five‑search limit would be restrictive.

Jeff Su ↗ Lesson → AI-generated
How-to Perplexity Everyone

Need a detailed answer that shows reasoning and cites sources

Perplexity’s search lets you choose models and source filters (e.g., web, social, finance). By selecting the appropriate model and enabling opinion sources, the AI pulls from many cited sites and shows its reasoning steps, giving more accurate, nuanced results than plain chat.

Tina Huang ↗ Lesson → AI-generated
How-to Perplexity Everyone

I need a thorough, source‑backed report fast

The Deep Research button runs a timed search that gathers dozens of sources, creates a structured report, and can email you when finished. It’s ideal for thorough investigations with minimal hallucinations.

Tina Huang ↗ Lesson → AI-generated
How-to Perplexity Everyone

Have raw research notes and want a web page

Perplexity’s ‘Convert to Page’ feature formats research output with sections, images, and styling, then lets you edit, preview, and publish a shareable link.

Tina Huang ↗ Lesson → AI-generated
How-to Perplexity Everyone

When I need the same AI help repeatedly

Spaces act like custom GPTs: you give a system prompt, name the space, and it retains context across sessions, perfect for recurring workflows such as trip planning or stock screening.

Tina Huang ↗ Lesson → AI-generated
How-to Perplexity Everyone

Need a daily briefing without any effort

Perplexity’s Task feature lets you set a recurring query, choose model and sources, and define delivery method (email or WhatsApp). It runs automatically at the chosen time.

Tina Huang ↗ Lesson → AI-generated
How-to Perplexity Everyone

Need AI answers on WhatsApp

By linking your WhatsApp number, Perplexity can send you task results or answer queries directly in the messaging app, keeping interactions private and mobile‑friendly.

Tina Huang ↗ Lesson → AI-generated
How-to Perplexity Everyone

Need to pull research results into a Zapier flow

Using the Perplexity API key, you can call the intelligent search endpoint from tools like n8n or Zapier to automate research, summarization, and downstream actions (e.g., email podcast).

Tina Huang ↗ Lesson → AI-generated
How-to Perplexity Everyone

Want an offline version of your research page

After creating a page or report, you can export it in multiple formats for offline use or publishing, preserving citations and layout.

Tina Huang ↗ Lesson → AI-generated
How-to Perplexity Everyone

Need AI answers that sound like you

In the account settings you can edit the 'Introduce yourself' prompt to define tone, reasoning style, and accuracy preferences. This guides the model to prioritize first‑principles reasoning and ask clarifying questions, reducing hallucinations.

Ali H. Salem ↗ Lesson → AI-generated
How-to Perplexity Everyone

Need a deep research report with tables and sources

Switching the search mode to 'Deep research' tells Perplexity to compile an in‑depth report, pulling from multiple sources and structuring key takeaways, tables, and citations automatically.

Ali H. Salem ↗ Lesson → AI-generated
How-to Perplexity Everyone

Need regular AI answers sent to me

Perplexity lets you create a task that runs on a chosen cadence, using any prompt you define. You can set delivery method (email, notification) and expiration date, turning the AI into a personal monitoring service.

Ali H. Salem ↗ Lesson → AI-generated
How-to Perplexity Everyone

Need answers just from academic papers

You can toggle source types such as Web, Academic papers, Social media, or SEC filings. Restricting sources improves relevance for specific domains and reduces unwanted noise.

Ali H. Salem ↗ Lesson → AI-generated
How-to Perplexity Everyone

Want an easy way to see your research metrics

The Labs feature accepts a prompt describing desired visualizations, style, and data source. Perplexity builds an interactive dashboard that updates when you modify filters or remove outliers.

Ali H. Salem ↗ Lesson → AI-generated
How-to Perplexity Everyone

Want to co‑author a project with teammates

Spaces act like shared workspaces where threads, files, and instructions are stored. You can invite others via a link, allowing real‑time collaboration on itineraries, research, or any project.

Ali H. Salem ↗ Lesson → AI-generated
How-to Perplexity Everyone

Want to see Gmail or Drive info inside a chat

Connectors let you link Gmail, Outlook, Google Drive, Dropbox, or WhatsApp so that queries can fetch live emails, documents, or messages without leaving the platform.

Ali H. Salem ↗ Lesson → AI-generated
How-to Perplexity Everyone

Need a different AI for each query

Perplexity allows you to pick a model per query (Sonar, GPT‑4, Claude, etc.). Selecting a specialized model can improve accuracy for niche domains or reduce cost.

Ali H. Salem ↗ Lesson → AI-generated
How-to Perplexity Everyone

I want to share a whole conversation

After a conversation, you can convert the entire thread into a formatted page with sections, images, and citations. The page can be published via a link for easy sharing.

Ali H. Salem ↗ Lesson → AI-generated
How-to Perplexity Everyone

Need hands‑free answers

The platform includes a microphone icon that enables voice input and reads responses aloud, allowing hands‑free queries and accessibility for users who prefer speaking.

Ali H. Salem ↗ Lesson → AI-generated
How-to Perplexity Everyone

Perplexity automatically searches the web for each query and attaches clickable citations to every fact, letting you verify information instantly. This reduces hallucinations compared to static LLMs.

YouTube ↗ Lesson → AI-generated
How-to Perplexity Everyone

Need a full slide deck from one prompt

Computer mode treats your request as an AI agent workflow, breaking it into sub‑tasks, selecting optimal models for each step, and assembling slides automatically.

YouTube ↗ Lesson → AI-generated
How-to Perplexity Everyone

Want current numbers from your apps

Connectors let Perplexity access APIs of platforms such as Google Drive, Notion, YouTube Analytics, etc., so AI can read and act on your personal data securely.

YouTube ↗ Lesson → AI-generated
How-to Perplexity Everyone

Deep research runs an extended search, aggregates multiple sources, and formats results (including comparison tables) for complex analysis tasks.

YouTube ↗ Lesson → AI-generated
How-to Perplexity Everyone

Want to keep chats, files and prompts together for repeated work

Spaces act like folders that store related chats, files, and custom prompts, enabling you to reuse instructions across repeated tasks without re‑typing.

YouTube ↗ Lesson → AI-generated
How-to Perplexity Everyone

Want a search to run automatically every week

The scheduled search feature lets you define a query (or deep‑research/computer workflow) to run at set intervals, delivering results via notification or email.

YouTube ↗ Lesson → AI-generated
How-to Perplexity Everyone

When enabled, Perplexity sends your question to several top‑tier models, aggregates their responses, and returns a refined answer that reduces single‑model bias.

YouTube ↗ Lesson → AI-generated
How-to Perplexity Everyone

This mode breaks down a difficult concept into incremental steps, asks you to confirm understanding after each, effectively acting as an interactive tutor.

YouTube ↗ Lesson → AI-generated
How-to Perplexity Everyone

All files produced by Perplexity (reports, spreadsheets, presentations) are saved in the Artifacts tab, making it easy to retrieve past results without searching chat history.

YouTube ↗ Lesson → AI-generated
How-to Perplexity Everyone

Need a repeatable way to run the same computer steps

Skills are reusable instruction sets that tell Computer mode how to handle specific types of work (e.g., formatting reports), letting you standardize workflows across projects.

YouTube ↗ Lesson → AI-generated
How-to Perplexity Everyone

Perplexity is fine‑tuned for rapid information retrieval and returns concise answers with source citations. Using Google‑style search operators narrows results to trusted domains.

Jeff Su ↗ Lesson → AI-generated
How-to Perplexity Everyone

Split your query into three parts—Goal (what you want), Inputs (data sources to use), and Constraints (limits like time range). This forces the model to focus on what matters, yielding more accurate and useful responses.

Numroid ↗ Lesson → AI-generated
How-to Perplexity Everyone

Different models excel at different tasks: Claude for writing/research, ChatGPT for multi‑step reasoning and coding, Gemini for broad research, Sonar for fast fact retrieval. Picking the right model boosts accuracy and speed.

Numroid ↗ Lesson → AI-generated
How-to Perplexity Everyone

When I want answers that know my business details

Spaces let you upload private data and set custom instructions, giving Perplexity persistent knowledge about your role, goals, and assets. This turns generic answers into personalized advice.

Numroid ↗ Lesson → AI-generated
How-to Perplexity Everyone

Want answers just from my Slack, Gmail or Dropbox

Focus mode toggles between source categories (academic, finance, social, etc.) while connectors let Perplexity pull directly from tools like Slack, Gmail, Dropbox. This narrows results to the most relevant domain.

Numroid ↗ Lesson → AI-generated
How-to Perplexity Everyone

Need a deep analysis with sources and charts

Activating deep research tells Perplexity to gather more sources, create charts, and perform extended reasoning, producing in‑depth analyses like market studies or product launch plans.

Numroid ↗ Lesson → AI-generated
How-to Perplexity Everyone

Need regular updates like weekly stock summaries

Perplexity’s Tasks feature lets you schedule queries (e.g., weekly stock summaries) that run automatically on a chosen cadence, delivering results via notification.

Numroid ↗ Lesson → AI-generated
How-to Perplexity Everyone

Need a report, slides or dashboard without formatting

Labs provides a suite of agents that can create structured outputs (docs, slides, dashboards) from prompts. By crafting strong prompts you can produce professional assets without manual formatting.

Numroid ↗ Lesson → AI-generated

The same set on /recipes, filtered by tool and role.

5Videos 3

6FAQ 12

What exactly is Perplexity, and how is it different from just Googling something?

Perplexity is an AI-powered answer engine that searches the web in real time and writes a direct, readable answer to your question — with numbered citations you can click to verify every claim. Unlike Google, which returns a list of links you read yourself, Perplexity synthesizes multiple pages into one response. Unlike ChatGPT, it always cites its sources by default and pulls from live web content. Think of it as a research librarian that reads several articles for you and hands you a summary with footnotes.

What are Spaces and should I use them for a research project?

Spaces are persistent, project-specific workspaces where you can group related threads, upload your own files (PDFs, Word docs), set custom instructions, and invite collaborators. For a literature review you could create a Space, upload relevant PDFs, and ask questions that search both your files and the web at once. Spaces are useful for multi-session or group research rather than one-off questions.

Can I use Perplexity to cite sources in a paper — will my professor accept those citations?

Perplexity can help you find sources, but never copy a citation from it into your paper without verifying it first. Perplexity has been documented to produce citations with incorrect details or that don't support the stated claim. The correct workflow: use Perplexity to find a relevant paper, click the citation link, open the original article, read and verify it yourself, then format the citation from the actual paper. Professors expect citations to real, verified sources.

Does Perplexity hallucinate — can it confidently tell me something completely wrong?

Yes. Perplexity can state incorrect information with the same confident, citation-decorated formatting it uses for accurate information. A known failure mode is that its synthesis layer makes claims that go beyond, or contradict, what the cited source actually says — while still attaching that source's URL. This is why clicking through every cited source to verify it is non-negotiable for academic work.

What is Deep Research and how is it different from a regular Perplexity search?

Deep Research is Perplexity's most thorough mode: it runs many web searches automatically, reads dozens of sources over a few minutes, and produces a structured report with many citations. A regular search is near-instant and uses a handful of sources; Deep Research is much slower but produces something closer to a preliminary literature review. Use it to generate a starting-point overview, but still verify every citation.

Should I use Perplexity instead of Google Scholar or PubMed for finding biology papers?

Perplexity works best as a discovery and orientation tool, not a replacement for PubMed or Google Scholar. It's good for quickly understanding a topic, identifying key papers, and generating search terms — but it covers mainly open-access content and can misattribute information. For a real literature review, start with Perplexity to get oriented, then go to PubMed or Google Scholar directly to search systematically and access full texts.

What is a 'Pro Search' and why does it use up my daily limit?

A Pro Search is a more powerful, slower search that breaks your question into multiple steps, runs several sub-queries across the web, and compiles a thorough, well-sourced response — rather than a quick one-pass answer. It's best for complex questions like comparing research findings. Regular searches are unlimited and instant; Pro Searches are metered because they use significantly more compute.

Can I trust the citations Perplexity gives me? Could it make up a source?

You should not trust citations without verifying them yourself. Perplexity can 'hallucinate' — attaching a real-looking URL to a claim that the source doesn't actually support. A 2025 academic study found only about a quarter of AI-generated references were fully correct, with a large share erroneous or fabricated. The rule: click every numbered citation, open the actual page, and confirm the claim is there before using it. Treat citations as research leads, not finished references.

What is Academic focus mode and how do I turn it on?

Academic focus restricts Perplexity's results to peer-reviewed journals and scholarly databases rather than the general web. Click the 'Focus' control in the search bar and select 'Academic' — you can switch modes mid-conversation without losing your thread. It's the fastest way to surface citable scholarly sources, and it is available on the free tier.

Can Perplexity actually read papers from PubMed or full-text journal articles?

Perplexity can search and cite papers from sources like PubMed, arXiv, and Semantic Scholar — but full-text access depends on whether a paper is open-access. For paywalled articles it typically cites the abstract only. If your university library gives you journal access, follow the citation link and open the full paper there. Open-access biology content is well covered; closed-access papers in subscription journals are not.

How is Perplexity different from ChatGPT for finding scientific sources?

Perplexity is built as a search engine first — every answer comes with real-time web citations by default, and Academic focus targets peer-reviewed papers directly. ChatGPT is a conversational assistant that is better at writing and brainstorming, but does not cite sources unless you use its Deep Research mode. For finding and verifying sources, Perplexity is the better starting tool; ChatGPT is more useful once you already have sources and want help understanding them.

What are the different focus modes and which are useful for biology research?

Perplexity has several focus modes: Web (general internet, default), Academic (peer-reviewed databases — most useful for biology papers), Social (community discussions), Finance, and others. For finding scientific sources, Academic is the go-to; Web is useful for broad background reading. Core focus modes including Academic are available on the free plan; Deep Research requires Pro.

7Glossary 19 terms

Show the 19 terms
Perplexity
Answer Engine
What Perplexity calls itself — instead of returning a list of links like a search engine, it reads the web in real time and writes a direct answer with cited sources.
Thread
A single conversation in Perplexity where each follow-up question keeps the context from previous turns, so you never have to repeat yourself.
Citations
Numbered source links that appear inline in every Perplexity answer so you can click through and verify the original web page or paper.
Focus
A filter you apply before searching that tells Perplexity which part of the web to look in — for example Academic restricts results to peer-reviewed papers, Social searches Reddit and forums, and Video pulls from YouTube content.
Pro Search
A deeper search mode that breaks your question into multiple sub-queries, consults more sources, and synthesizes a more thorough answer than the default Quick Search.
Quick Search
The default, faster search mode suited for simple factual questions where a brief answer with a few sources is enough.
Deep Research
An autonomous research mode that spends several minutes performing dozens of searches across hundreds of sources and produces a structured, multi-section report — equivalent to asking a research analyst to investigate a topic for you.
Spaces
Collaborative workspaces inside Perplexity where you can group related threads, write custom instructions that apply to every search, and invite teammates to contribute.
Pages
A publishing feature that turns any Perplexity research thread into a formatted, shareable article with a public URL you can distribute or embed.
Connectors
Integrations that link Perplexity to your external apps — such as Gmail, Slack, Notion, or Google Drive — so it can pull live data from those tools into its answers.
Model Council
A premium feature that runs your query through three AI models simultaneously, then uses a fourth 'chair' model to synthesize their responses into one combined answer — available to Max subscribers.
Scheduled Searches
Automated queries you set up once that Perplexity re-runs on a daily, weekly, or monthly schedule and delivers to you as a notification.
File Upload
A feature that lets you attach PDFs, spreadsheets, images, or documents to a conversation so Perplexity can read and answer questions about their contents; free users get a daily limit, while Pro unlocks unlimited uploads.
Sonar
Perplexity's own family of AI models, optimised for fast, accurate web-grounded answers; the base Sonar model is the default search model, while Sonar Pro and Sonar Deep Research handle progressively more complex tasks.
Comet
An AI-native web browser made by Perplexity, built on Chromium, with a built-in assistant for summarising pages and automating multi-step browsing tasks, available on desktop and mobile.
Perplexity Pro
The paid subscription tier (around $20/month) that unlocks unlimited Pro Search, Deep Research, file uploads, model selection, and API credits.
Perplexity Max
A higher-tier subscription above Pro that adds features like Model Council, priority access to new models, and additional advanced capabilities.
Voice Mode
A conversational interface that lets you speak your questions aloud and hear Perplexity's answers spoken back, using a real-time speech model.
Sonar API
A developer interface that lets programmers embed Perplexity's web-grounded search capability into their own applications, using the same request format as the OpenAI API.

8See also

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