OpenAI Blog · Dec 18, 2025
Introducing GPT-5.2-Codex
Reviewed by Errol Vogt, Site support technician & online learning analyst · original summary · editorial policy
Introducing GPT-5.2-Codex. GPT-5.2-Codex is OpenAI’s most advanced coding model, offering long-horizon reasoning, large-scale code transformations, and enhanced cybersecurity capabilities. This update is relevant for small-office operators tracking changes in their tools.
Operator takeaway: For operators: review whether 'Introducing GPT-5.2-Codex' affects your current setup before relying on it in production.
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