Google's office agent now calls Claude, running on Anthropic's MCP protocol

sujingshen · x · 2026-10-09

In 48 hours, Anthropic and Google plugged into each other's ecosystems: on Oct 6 Anthropic brought Claude into Google Docs, Sheets, and Slides; on Oct 8 Google's Gemini at Work launch added an office agent that officially supports calling Claude — users can even hand tasks to Claude Opus 5.5, bypassing Google's own Gemini 4 Argon. Notably, the agent runs on MCP, Anthropic's protocol. The takeaway: when models are interchangeable, the moat shifts from model quality to owning the entry points and workflows users open every day.

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