Overview
- AI Overviews now summarize long email threads for all users at no cost, with Help Me Write and upgraded Suggested Replies also expanding broadly.
- Natural‑language Q&A across inboxes and the new Proofread tool require Google AI Pro or Ultra subscriptions, starting on the web.
- An experimental AI Inbox that prioritizes to‑dos, VIPs, and key updates is live for trusted testers, with a wider release planned in the coming months.
- Google confirms Gemini 3 powers the features and says the launch starts in English for U.S. accounts, with more regions and languages to follow.
- The company says inbox data stays within a secure privacy boundary and is not used to train models, as coverage notes ongoing concerns about accuracy and user trust.