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

https://www.bookmarkmaster.win/google-keeps-gemini-pricing-simple-by-offering-a-free-tier-for-casual-curiosity

Gemini offers a free tier for casual users who need help with quick tasks or creative brainstorming. If you require more power, the Advanced plan costs $20 per month and includes a 1 million token context window