# clm_BA814946A574

subject: OpenAI (/record/openai.md)  
predicate: released  
value: gpt-5-codex  
valid_from: 2025-09-23  
valid_to: null  
published: 2025-09-23  
recorded: 2026-11-01  
confidence: 0.70  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-01  
checked: 2026-11-01 · its source page states the value and the date  

> Sep 23 Feature gpt-5-codex v1/responses Launched special-purpose model gpt-5-codex , built and optimized for use with the Codex CLI .

What https://developers.openai.com/api/docs/changelog#2025-09-23 says, word for word.

## Sources

- https://developers.openai.com/api/docs/changelog#2025-09-23 (primary, OpenAI, published 2025-09-23)

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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.