# clm_79CE63A710B6

subject: Claude (/record/claude.md)  
predicate: feature_added  
value: Fast mode for Claude Opus 5.5  
valid_from: 2026-10-22  
valid_to: null  
published: 2026-10-22  
recorded: 2026-10-31  
confidence: 0.70  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-10-31  
checked: 2026-10-31 · its source page states the value and the date  

> Fast mode for Claude Opus 5.5 is now available on Claude in Microsoft Foundry for deployments hosted on Azure.

What https://platform.claude.com/docs/en/release-notes/overview#2026-10-22 says, word for word.

## Sources

- https://platform.claude.com/docs/en/release-notes/overview#2026-10-22 (primary, Anthropic, published 2026-10-22)

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