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Friday, 16 May 2025

Addendum to o3 and o4-mini system card: Codex

OpenAI 1 year ago 4

Codex is a cloud-based coding agent powered by codex-1, a specialized version of OpenAI's o3 model trained for software engineering tasks. The model was trained using reinforcement learning on real-world coding tasks to generate code that matches human style, follows instructions precisely, and iteratively runs tests until they pass. Codex enables developers to use an AI agent that can autonomously write and test code rather than relying on code completion features alone.

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