Introducing Anthropic’s Claude Opus 4.5 in Microsoft Foundry for Enterprise AI Development
Authored by stclarke, this announcement details the rollout of Anthropic’s Claude Opus 4.5 on Microsoft Foundry, with full support for developers, enhanced coding benchmarks, security, and integration with GitHub Copilot paid plans.
Introducing Anthropic’s Claude Opus 4.5 in Microsoft Foundry
Anthropic’s Claude Opus 4.5 is now in public preview on Microsoft Foundry, GitHub Copilot paid plans, and Copilot Studio, marking a major milestone for AI development in the Microsoft ecosystem. This model sets new standards for coding, agentic workflows, and enterprise productivity.
Key Highlights
- Public Preview in Microsoft Foundry, GitHub Copilot Paid Plans, and Copilot Studio
- Enterprise-scale Access: Azure customers benefit from immediate integration, deployment, and scalability for advanced AI agents.
- Expanded Model Selection: Developers can pick from leading frontier AI models within Microsoft’s secure platform.
Technical Benchmarks
Claude Opus 4.5 achieves state-of-the-art results:
| Capability | Claude Opus 4.5 | Claude Sonnet 4.5 | Claude Opus 4.1 | Gemini 3 Pro |
|---|---|---|---|---|
| Agentic Coding (SWE-bench) | 80.90% | 77.20% | 74.50% | 76.20% |
| Tool Use (Retail) | 88.90% | 86.20% | 86.80% | 85.30% |
| Visual Reasoning (MMMU) | 80.70% | 77.80% | 77.10% | - |
| Graduate Reasoning (GPQA) | 87.00% | 83.40% | 81.00% | 91.90% |
These benchmarks show Opus 4.5’s strong multi-domain performance for engineering, reasoning, and workflow execution.
Developer Features in Foundry
- Programmatic Tool Calling: Direct tool invocation (e.g., Python) for efficient workflows.
- Tool Search: Dynamic tool discovery without context window overload.
- Effort Parameter (Beta): Fine-tune computational effort for balance between speed and cost using new SDK helpers.
- Compaction Control: Manage long-running tasks over extended agent interactions.
Use Cases
- Software Engineering: Automate multi-system development tasks, code generation, and architectural analysis.
- Cybersecurity: Threat detection and incident response leveraging agentic tool use.
- Financial Modeling: Advanced predictive modeling, compliance monitoring, and structured analysis.
- Enterprise Operations: Agent-driven orchestration across multiple tools and data sources.
Security and Safety Improvements
- Reduced Prompt-Injection Vulnerability
- Greater Robustness Across Complex Tasks
- Enterprise-Grade Compliance: Supporting centralized governance and observability.
Pricing and Availability
| Model | Deployment | Regions | Input (1M tokens) | Output (1M tokens) | Availability |
|---|---|---|---|---|---|
| Claude Opus 4.5 | Serverless Pay-go | East US2, Sweden Central | $5 | $25 | Nov 24, 2025 (preview) |
Getting Started
- Visit Microsoft Foundry to explore and deploy Claude Opus 4.5.
- Use new developer tools and SDK integrations for advanced agentic workflows.
- Visual Studio Code support arriving soon via Foundry extension.
“Having Claude’s advanced reasoning alongside GPT models in one platform gives us flexibility to build scalable, enterprise-grade workflows.” — Michele Catasta, President, Replit
References & Further Reading
Author: stclarke
This guide reflects Microsoft’s commitment to enabling secure, scalable, and interoperable AI—now powered by Opus 4.5 for development teams, engineers, and enterprise builders.
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