Agents in Word, Excel and Teams and Anthropic models in Copilot?!?
Tom Arbuthnot rounds up October's Microsoft 365 news: unified Copilot Chat lands in Office apps and Teams, agent mode arrives in Word and Excel (hello, "vibe working"), channel agents hit public preview, and Anthropic's Claude Sonnet 4.5 and Opus 4.1 come to Microsoft 365 Copilot \