GPT-5 Codex available in the API

A much requested feature just dropped!

Pricing is similar to GPT 5.
Additionally, it’s also available inside Cursor and Windsurf.

GPT-5-Codex is also ready to integrate into agentic coding apps and workflows.

We optimized the model for Codex, so it’s not a drop-in replacement for other models. Check out the prompt guide for best results.

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