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Chat Completions
OpenAI-compatible endpoint for chat-based text generation.
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Endpoint
http
1POST /v1/chat/completions2Content-Type: application/jsonRequest example
json
1{2 "model": "gpt-5.2",3 "messages": [4 {5 "role": "system",6 "content": "You are a helpful assistant."7 },8 {9 "role": "user",10 "content": "Write a haiku about observability."11 }12 ]13}Streaming
Set stream: true to receive Server-Sent Events. Usage metrics may arrive at the end of the stream.
Tip
Log pages show input / cached / output tokens when available.