GPT-5.2-Codex capability addendum in GPT-5.2 System Card

AI Impact Summary

Addendum signals a Codex-enabled capability for GPT-5.2, labeling GPT-5.2-Codex as part of the system card. This suggests the model will deliver improved code generation, understanding, and multi-language coding patterns through GPT-5.2 endpoints. Teams should validate code-task prompts, monitor for safety and licensing constraints, and plan tests to distinguish Codex-driven results from standard natural-language outputs. Expect potential shifts in performance for code-oriented workflows and adjust observability to track Codex usage separately from vanilla GPT-5.2 usage.