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.

Google's AI Gemini will now automatically summarize long email threads for some users, the company said in a blog post. Previously, users had to tap "Summarize this email" for Gemini to generate key points.

Google's AI push continues as automatic AI-generated Gemini summary cards for emails are now rolling out to the Gmail app.