Google Search AI Mode Using Gemini 3.7 Flash

Barry Schwartz is the CEO of RustyBrick and a technologist, a New York Web service firm specializing in customized online technology that helps companies decrease costs and increase sales. Barry is also the founder of the Search Engine Roundtable and the News Editor of Search Engine Land . He is well known & respected for his expertise in the search marketing industry. He only provides consulting services to expert SEOs and also performs search marketing expert witness services. Barry graduated from the City University of New York and lives with his family in the NYC region. You can follow Barry on Twitter at @rustybrick or on LinkedIn and read his full bio over here

Late on Friday, Google's Robby Stein and Rajan Patel announced on X and X that Google Search is now using its latest AI model named Gemini 3.7 Flash. This model was first announced on Thursday, but Google made no mention of Search, it only said it is its "most intelligent workhorse model yet for coding and agents."

This will work in Google Search's AI Mode for Google AI Pro & Ultra subscribers in English at first as of last Friday. This is a global roll out and if you are a subscriber, you can access it by clicking the plus icon and then selecting the model.

So I asked Rajan Patel and Robby Stein and friends on Thursday what about Search:

is 3.7 Flash integrated into Google Search in any way? I don't see that mentioned @rmstein @thefox @rajanpatel — Barry Schwartz (@rustybrick) August 13, 2026

Then the next day, they post posted on X about it. They said:

Next stop for Gemini 3.7 Flash? Google Search! We’re bringing our most intelligent workhorse model to Search for even more helpful responses. Rolling out globally today in AI Mode for Google AI Pro & Ultra subscribers in English. Just click the plus icon, select the model and get searching.

Robby Stein added that this is "better at following instructions and understanding your intent, so you get even more helpful responses."

This should eventually fully replace 3.5 Flash-Lite on Google Search as Google removes the subscription requirement.

Again, this is currently only live in AI Mode for paid subscribers.

Glenn Gabe and Gagan Ghotra compared the old model to the new:

Testing Gemini 3.7 Flash in AI Mode versus the default version most users have (which I believe is Gemini 3.5 Flash-Lite). Google said it's better at understanding intent. So far not really seeing a huge difference there. I'll keep testing, though. :) Here are two comparisons of… pic.twitter.com/MV0qoi6IG4 — Glenn Gabe (@glenngabe) August 15, 2026

AI Mode (default - 3.6 Flash) vs now 3.7 Flash model

For local results this change isn't significant I noticed ..... pretty much whole ordered list of entities mentioned in answer is the same but in the main top 3 citations it's usually different URLs compared to what it was for… pic.twitter.com/edlUoXgasI — Gagan Ghotra (@gaganghotra_) August 16, 2026

OK, I just found a good example of 3.7 Flash outperforming the default AI mode model for most people (3.5 Flash-Lite). I asked how Google review updates roll out now and 3.7 did a much, much better job at understanding what I meant. 3.5 Flash-Lite was referring to Google Business… pic.twitter.com/xiU6ePw71p — Glenn Gabe (@glenngabe) August 17, 2026

Forum discussion at X and X.