---
type: "Evidence Item"
title: "Claude now available in Microsoft Foundry and Microsoft 365 Copilot"
description: "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."
resource: "https://www.anthropic.com/news/claude-in-microsoft-foundry"
tags: ["appendix-iii", "deployment", "anthropic"]
timestamp: "2025-11-18"
category: "deployment"
publisher: "Anthropic"
cope_score: 96
confidence: 0.88
---

# Claude now available in Microsoft Foundry and Microsoft 365 Copilot

# Claim

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. This enables companies to build with Claude, the world's best.

# Relevance

Appendix III, section four: enterprise deployment evidence

# Oracle Verdict

Anthropic is describing a frontier or production capability that pushes directly on the thesis. The important signal is not the marketing language; it is the widening set of tasks now being routed through model-driven execution rather than ordinary software or headcount.

# Metadata

* Publisher: Anthropic
* Category: deployment
* Sector: Enterprise operations
* Capability: Frontier model release and benchmark movement
* Cope score: 96
* Confidence: 0.88

# Related Concepts

* [Live evidence index](index.md)
* [Thesis](../thesis.md)

# Citations

[1] [Claude now available in Microsoft Foundry and Microsoft 365 Copilot](https://www.anthropic.com/news/claude-in-microsoft-foundry)