# GPT-5.3-Codex timeline

entity: /record/gpt-5-3-codex.md  
id: ent_gpt-5-3-codex  


## 2026

- 2026-02-24 | model_release | gpt-5.3-codex | valid | [clm_55F8E9407504](/claim/clm_55F8E9407504.md)
- 2026-10-01 | deprecated | gpt-5.3-codex | valid | [clm_3C9D776B3539](/claim/clm_3C9D776B3539.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.