Claude Sonnet 4 and Opus 4.1 are also now available through Copilot Studio, a platform Microsoft launched last year through which customers can design custom agents. Studio also has mix-and-match ...

The rollout starts today for Microsoft 365 Copilot customers in the Frontier program and Copilot Studio users.

The rollout will reach preview in all environments within two weeks, with production deployment anticipated by year-end.

Microsoft has added Anthropic’s Claude Sonnet 4 and Claude Opus 4.1 to the selection available for Copilot users, marking a major shift as it pivots away from exclusively offering OpenAI models.

So far, the Microsoft Copilot Studio allows users to choose between models from OpenAI or Azure Model Catalog, but now users will also be able to select Claude Sonnet 4 and Claude Opus 4.1. To make ...