Surprising no one, Microsoft's Build 2025 conference is mostly centered around its Copilot AI. Today, the company announced that it has begun rolling out its "Wave 2 Spring release," which includes a revamped Microsoft 365 Copilot app.

Copilot is likely to be a headliner at Build, and big changes to it could be on the way. Microsoft is reportedly testing alternative AI models from xAI, Meta, Anthropic, and DeepSeek as possible replacements for OpenAI technology in Copilot as the relationship between Microsoft and OpenAI becomes strained.

At Microsoft Build we’re showing the steps we’re taking to make this vision a reality through our platforms, products and infrastructure. We’re putting new models and coding agents in the hands of developers,