Grok’s paid plans start at $15/month for limited use and $50/month for extended...

https://wiki-club.win/index.php/SuperGrok_$30_vs_X_Premium%2B_$40:_Which_Should_My_Company_Pay_For%3F

Grok’s paid plans start at $15/month for limited use and $50/month for extended access, with a cap of about 10 prompts every 2 hours to manage load. There’s no free trial available, so buyers should be ready to commit when signing up