You no longer have to manually start Gemini summaries for long email chains, but you can also opt out if you don't want them.

Not every email is getting the Gemini treatment, so things like promos or receipts are off the table. Instead, Gmail will roll out a Summary card when it spots a long thread or a

The mobile rollout for both groups begins June 24, 2024, and may take up to 15 days for all users to see the new options.