OpenAI: GPT-5.1-Codex Release Date
GPT-5.1-Codex was released on 2025-11-13, which was 355 days ago. Its recency score is 83.
Data sourced from OpenRouter API and manual data collection | Last updated: Nov 3, 2026, 8:01 AM UTC
Release date
2025-11-13
Recency score
83
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Frequently asked questions
When was GPT-5.1-Codex released?
GPT-5.1-Codex was released on 2025-11-13, which was 355 days ago. Its recency score is 83.