Google pushes Gemini 3 into Gmail, turning 3 billion inboxes into agentic interfaces

A new Gmail update integrates Gemini 3 directly into the inbox with AI Overviews, Suggested Replies, and an AI Inbox mode — making email the largest agentic deployment surface in history.

Google announced Thursday that it is integrating Gemini 3 directly into Gmail, rolling out initially in English to US users. The update introduces AI Overviews for long email threads, Suggested Replies that go beyond canned one-liners, and a new "AI Inbox" mode that proactively surfaces action items and priorities. As Google AI announced, Gmail is entering "the Gemini era."

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