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Their search engine will omit "AI" summaries if you add &udm=14 to the query URL.

I added a custom search engine entry to firefox that does this, made it the default, and haven't seen an AI summary from Google since I did that.

That filter does much more, it removes all the "first party" results, AI or otherwise. You are better off with adding "-ai" to the query.

Even then, -ai doesn't always follow directions.

Google has a severe problem with consent.