OpenAI Responses API transparent proxy.
Drop-in replacement for https://api.openai.com/v1/responses. Point your OpenAI client at Faces’s base URL, swap the API key, and set model to “iam_username@gpt-5.4”.
Connect-plan users with a linked ChatGPT account get routed through their own ChatGPT Plus/Pro subscription via the Codex endpoint for gpt-5.x models (billing skipped — user pays via their subscription).
_body_override: internal param used by chat.py auto-routing (not exposed to HTTP).
The body is of type Body Override · object.
Successful Response