API Request Fields
model
The specific trained AI system (such as “Firefly commercial safe”) that creates the output.
Related areas
Alternate definitions 3
Definition 2Concepts
A field in an API request body that tells the server which AI model to use; when talking to Jan you set this to the model ID shown in Jan's model list.
Concepts · curriculum materials
Definition 3Concepts
The specific AI brain opencode uses to answer your questions and write code (for example claude-sonnet-4-5 or gpt-4o); you can switch models mid-session.
Concepts · curriculum materials
Definition 4API Request Fields
A key in the JSON request body that tells OpenRouter which AI model to use for your request, specified as a provider/model-name string such as google/gemma-4-31b-it:free.
API Request Fields · curriculum materials