Force JSON object response format (v1 API)

Users can now force command-nightlyto generate outputs in JSON objects by setting the response_format parameter in the Chat API. Users can also specify a JSON schema for the output.

This feature is available across all of Cohere’s SDKs (Python, Typescript, Java, Go).

Example request for forcing JSON response format:

cURL

1 POST https://api.cohere.ai/v1/chat
2 {
3     "message": "Generate a JSON that represents a person, with name and age",
4     "model": "command-nightly",
5     "response_format": {
6         "type": "json_object"
7     }
8 }

Example request for forcing JSON response format in user defined schema:

cURL

1 POST https://api.cohere.ai/v1/chat
2 {
3     "message": "Generate a JSON that represents a person, with name and age",
4     "model": "command-nightly",
5     "response_format": {
6         "type": "json_object",
7         "schema": {
8             "type": "object",
9             "required": ["name", "age"],
10             "properties": {
11                 "name": { "type": "string" },
12                 "age": { "type": "integer" }
13             }
14         }
15     }
16 }

Currently only compatible with `command-nightly model.