all the enterprise browser these days have AI maybe you have to check for OSS

Helium [1][2], for now at least.

[1] - https://helium.computer/

[2] - https://github.com/imputnet/helium

LibreWolf - Firefox without all the bloat, you'll just need to change the settings so that it doesn't delete cookies when you close the window.

Later this year Ladybird is supposed to launch (Alpha) and it doesn't support any AI features AFAIK.

Any browser with a settings page where you can disable the AI features. Couple of clicks and you're all good.

Falkon

I think Opera !

I think BRAVE