GPT-5.2-Codex System Card

GPT-5.2-Codex is very capable in the cybersecurity domain but does not reach High capability on cybersecurity, and it is being treated as High capability on biology with the corresponding suite of safeguards.

OpenAI | In Edition 14, Saturday 20 Dec 2025

SOURCE OpenAI, Addendum to GPT-5.2 System Card: GPT-5.2-Codex

Added to The Deploy Log Monday 14 Sep 2026, updated Thursday 17 Sep 2026. Read Edition 14, the edition that carried it.

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