# clm_C96F50DAC4F5

subject: Microsoft Azure (/record/microsoft-azure.md)  
predicate: partnership  
value: [Anthropic](/record/anthropic.md)  
valid_from: 2025-11-18  
valid_to: null  
published: 2025-11-18  
recorded: 2026-10-29  
confidence: 0.50  
status: unverified  
assertable: false (unverified: Unverified: one source that is not primary, or a primary source below confidence 0.7. Asserted once a primary source or a second independent domain confirms it.)  
superseded_by: null  
last_updated: 2026-10-31  
checked: 2026-10-31 · its source page states the value and the date  

> Today we announced that Microsoft and Anthropic are expanding our partnership . As part of the partnership, Claude Sonnet 4.5, Haiku 4.5, and Opus 4.1 models are now available in public preview in Microsoft Foundry, where Azure customers can build production applications and enterprise agents.

What https://www.anthropic.com/news/claude-in-microsoft-foundry says, word for word.

## Sources

- https://www.anthropic.com/news/claude-in-microsoft-foundry (secondary, Anthropic, published 2025-11-18)

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