# clm_470F0FA53E41

subject: GPT-6.1 Sol (/record/gpt-6-1-sol.md)  
predicate: model_release  
value: GPT-6.1 Sol  
valid_from: 2026-09-29  
valid_to: null  
published: 2026-09-29  
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  

> Sep 29 Feature gpt-6.1-sol v1/responses v1/chat/completions Released GPT-6.1 Sol ( gpt-6.1-sol ) for complex coding and professional work at a lower cost than GPT-6 Astra.

What https://developers.openai.com/api/docs/changelog#2026-09-29 says, word for word.

## Sources

- https://developers.openai.com/api/docs/changelog#2026-09-29 (primary, OpenAI, published 2026-09-29)

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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.