
Microsoft Prioritizes Anthropic’s Claude Model Over OpenAI’s GPT‑5 in VS Code and Microsoft 365
Microsoft is rolling out an automatic AI model‑selection feature for Visual Studio Code that favors Anthropic’s Claude Sonnet 4 over OpenAI’s GPT‑5, especially for paid GitHub Copilot users. Internal guidance from developer division head Julia Liuson cites benchmark results recommending Claude Sonnet 4. At the same time, the company is investing heavily in its own AI training infrastructure and planning to integrate Anthropic models into Microsoft 365 Copilot, while a new partnership deal with OpenAI eases cloud‑provider restrictions and hints at future financial arrangements.










