curl https://api.mibyanai.com/v1/chat/completions \
-H "Authorization: Bearer $MIBYAN_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"mibyan-4.1","messages":[{"role":"user","content":"Hello"}],"stream":true}'
The request must contain at least one message. Supported roles are `system`, `developer`, `user`, `assistant`, and `tool`. The gateway validates message size, generation limits, sampling values, tools, and structured-output settings before sending the request.
For field-by-field behavior, see [compatibility](/api-reference/compatibility) and [streaming](/api-reference/streaming).
