Key points

• Anthropic’s newest model, Claude Opus 4.5, is now available in public preview in Microsoft Foundry, GitHub Copilot paid plans, and Microsoft Copilot Studio.
• Opus 4.5 sets a new bar for coding, agentic workflows, and enterprise productivity, outperforming previous models at a more accessible price point.
• Microsoft Foundry delivers its commitment to giving Azure customers immediate access to the widest selection of advanced and frontier AI models of any cloud.

According to sources, we are at a real inflection point in the AI landscape, where models move from useful assistants to genuine collaborators. Anthropic’s newest model, Claude Opus 4.5, embodies that shift. This model is now available in public preview in Microsoft Foundry, GitHub Copilot paid plans, and Microsoft Copilot Studio.

Microsoft Foundry is an integrated, interoperable, and secure AI platform that enables seamless deployment, integration, and scaling for AI apps and agents. Foundry empowers developers to accelerate innovation with access to the widest selection of advanced and frontier AI models of any cloud.

Opus 4.5 sets a new bar for coding, agentic workflows, and enterprise productivity, outperforming previous models at a more accessible price point. Its versatility across software engineering, complex reasoning, tool use, and vision unlocks new opportunities for organizations to modernize systems, automate critical workstreams, and deliver ROI faster.

Developers gain access to several important upgrades, including Programmatic Tool Calling, Tool Search, and Tool Use Examples. These capabilities enable sophisticated agents across cybersecurity, full-stack software engineering, financial modeling, and other workflows requiring multiple tool interactions.

Opus 4.5 shows strong, real-world intelligence applying these tools creatively within constraints. In testing, the model successfully navigated complex policy environments, such as airline change rules, chaining upgrades, downgrades, cancellations, and rebookings to optimize outcomes.

The model also delivers meaningful improvements in safety and security, with a reduced rate of misaligned responses, stronger robustness against prompt-injection attacks, and more reliable behavior across complex tasks. These improvements align with Microsoft’s commitment to providing enterprise customers with models that meet high bars for safety, governance, and operational integrity.

Opus 4.5 serves a variety of use cases, including software development, financial analysis, cybersecurity, and enterprise operations. The model is available now in Microsoft Foundry and coming soon in Visual Studio Code via the Foundry extension.

Overall, Claude Opus 4.5 is a significant step forward in AI technology, and its availability in Microsoft Foundry is a major development for Azure customers. With its advanced capabilities and improved safety and security features, Opus 4.5 is poised to revolutionize the way organizations approach AI and automation.

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