# GPT-5.1-Codex-Max timeline

entity: /record/gpt-5-1-codex-max.md  
id: ent_gpt-5-1-codex-max  


## 2025

- 2025-12-04 | model_release | gpt-5.1-codex-max | valid | [clm_926858D20AA8](/claim/clm_926858D20AA8.md)

## 2026

- 2026-04-22 | deprecated | gpt-5.1-codex-max | valid | [clm_188DEFE41A98](/claim/clm_188DEFE41A98.md)
- 2026-07-23 | retired | gpt-5.1-codex-max | valid | [clm_FAC202E2646D](/claim/clm_FAC202E2646D.md)

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AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.