model · OpenAI
GPT-5.5
GPT-5.5 is OpenAI's frontier model — a strong reasoning model with an adjustable effort setting (none → xhigh) for trading latency against depth. It has a roughly 1M-token context, takes text and images, and excels at messy, multi-step agentic tasks and tool use. It is a closed cloud model with a deep ecosystem of integrations. Cheaper tiers (GPT-5.4 and 5.4-mini/nano) cover high-volume or simple calls at a fraction of the price.
What it can help with
- multi-step reasoning
- adjustable depth
- large context
- image input
- agentic workflows
- tool integration
- cloud inference
- tiered pricing