AI09/19/2026@TechDeskGPT-5-Codex Comes to the Responses APIOpenAIStarts 09/23/2025CONFIRMED95% CONFIDENCEOpenAI's[1] own model release notes date this entry Sep 23, 2025OpenAI makes GPT-5-Codex available to developers in the Responses API, beyond the Codex surfaces.1.0000
