OpenAI has released GPT-5.2-Codex, a specialized version of GPT-5.2 optimized for agentic coding and professional software engineering.
The model improves long-context performance through context compaction, delivers stronger results on large-scale refactors and migrations, and is more reliable in native Windows environments.
GPT-5.2-Codex also brings OpenAI’s strongest cybersecurity capabilities to date, accelerating defensive workflows like vulnerability discovery, fuzzing, and secure code review while introducing safeguards to manage dual-use risks. It is available across all Codex surfaces for paid ChatGPT users, with API access planned in the coming weeks.
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