6/6/25: Google reached out with the following information in an email:

Users can collapse a Gemini summary card and it will remain collapsed in that email thread. Additional control improvements will be coming soon, for example, if a user frequently collapses Gemini summary cards, future threads will default to a collapsed state until the user expands them again.

Emails that do not show summary cards will continue to support user-triggered summaries with the "summarize this email" chip at the top of emails or the option to summarize using Gemini in the side panel.

As with all of our AI features, Gmail remains committed to protecting user data and prioritizing privacy. Refer to our Privacy Hub site to learn more.

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You didn't ask for it, but here it is: Gemini's AI su

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