Grok’s paid plans start at $24/month, with an option at $80/month for higher...

https://shed-wiki.win/index.php/Does_SuperGrok_Heavy_Guarantee_Grok_4.3_Access%3F

Grok’s paid plans start at $24/month, with an option at $80/month for higher usage. Each plan caps you at about 10 prompts every 2 hours, helping manage demand predictably. Note that there’s no free trial, so you pay upfront to start using the service.