# clm_B9EE55A4A47C

subject: o1-pro (/record/openai-o1-pro.md)  
predicate: deprecated  
value: o1-pro  
valid_from: 2026-04-22  
valid_to: null  
published: no source on record carries a date  
recorded: 2026-11-04  
confidence: 0.95  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-04  
checked: 2026-11-04 · its source page states the value and the date  

> 2026-04-22: Legacy GPT model snapshots On April 22, 2026, we announced the deprecation of the following older OpenAI models. Access to these models was shut down on October 23, 2026.

What https://platform.openai.com/docs/deprecations says, word for word.

## Sources

- https://platform.openai.com/docs/deprecations (primary, OpenAI (API deprecations))

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