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GPT 5.2 Codex Timeline - Announcements & Release History | AI Stats

GPT 5.2 Codex

GPT 5.2 Codex

GPT 5.2 Codex

OpenAI

Overview Family Timeline Benchmarks Providers Quickstart Performance

Model Timeline

05 Feb 2026

Future version

18 Dec 2025

Model Released

Model first made available to the public

18 Dec 2025

Model Announced

Model first introduced to the public

19 Nov 2025

GPT 5.1 Codex Max

Previous version