OpenAI Blog · Dec 18, 2025
Addendum to GPT-5.2 System Card: GPT-5.2-Codex
Reviewed by Errol Vogt, Site support technician & online learning analyst · original summary · editorial policy
Addendum to GPT-5.2 System Card: GPT-5.2-Codex. Source details are limited, so this entry summarizes the headline change only for operators tracking their tools.
Operator takeaway: For operators: review whether 'Addendum to GPT-5.2 System Card: GPT-5.2-Codex' affects your current setup before relying on it in production.