A Model List Does Not Prove a Codex Relay Supports the Responses API
This story is from 2026-10-02. It is preserved in the archive; the latest stories are on the live feed.
An OpenAI-compatible /v1/models response is useful discovery evidence, but it does not prove that the same key can complete a Codex workflow. Model discovery, Chat Completions, the Responses API, streaming, tool calls, and client-specific gateways may use different routes or permissions. AI Relay C…
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- 2026-10-02 16:40 · DEV Community — AI
A Model List Does Not Prove a Codex Relay Supports the Responses API