GPT-5.2-Codex capability addendum to system card

AI Impact Summary

An addendum to the GPT-5.2 System Card signals a capability update for GPT-5.2-Codex, likely affecting code generation features and supported languages. Technical teams should review release notes to understand new prompts, output structures, or tool integrations and validate changes in staging before rollout. Expect potential changes in model behavior that could impact automated code synthesis, linting, or error rates, requiring updates to usage guidelines and monitoring.