GPT-5.2-Codex is now available in the Responses API—the same model available in Codex.
It’s strong at complex long-running tasks like building new features, refactoring code, and finding bugs.
Plus, it’s the most cyber-capable model yet, helping to find and understand codebase vulnerabilities.
platform.openai.com/docs/models/gp…
Check out our prompting guide to get the most out of Codex models: cookbook.openai.com/examples/gpt-5…
Here’s what our customers are saying about GPT-5.2-Codex in the API 👇
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