Gemini offers a free tier for casual users who need help with quick...

https://uniform-wiki.win/index.php/Gemini_Pricing_Changes:_How_Do_I_Know_What_I_Am_Grandfathered_Into%3F

Gemini offers a free tier for casual users who need help with quick brainstorming or writing simple emails. If you need more power, the Google One AI Premium plan costs $20 per month