curl -L -X POST https://api.example/v1/chat/completions \
-H 'Authorization: Bearer sk-example' -H 'Content-Type: application/json' \
-d '{"model": "gpt-4o-example",
"messages": [{"role": "system","content": "You are a helpful assistant."},
{"role": "user","content": "Hi"}],
"stream": false}'