🚀 1. Microsoft Copilot Isn’t Just GPT-Powered Anymore Until recently, Microsoft 365 Copilot and Copilot Studio leaned heavily on OpenAI’s GPT models (including the latest versions like GPT-5). Now, Anthropic’s Claude models (such as Claude Sonnet 4 / 4.5 and Claude Opus 4.1) have been added as optional model choices in key Copilot experiences. This…