Capability gains

OpenAI releases GPT-5.2-Codex for long-horizon coding and cyber work

OpenAI released GPT-5.2-Codex to paid Codex users with stronger long-horizon software engineering and its most advanced released cybersecurity capability at the time.

CURRENT ASSESSMENT · REVISION 1
TOWARD DOOM53confidence 88/100

Why it moved the index

The release combined stronger long-horizon coding autonomy with a material cyber-capability increase, while paid access and planned cautious API rollout moderated immediate reach.

AUDIT TRAIL

Assessment history

  1. R1
    Toward 53 · confidence 88

    New dated exact-model release supported by its launch and same-day system-card addendum.

    11 Aug 2026