Grok’s paid plans start at $20/month for basic access and go up to $60/month...

https://seo.edu.rs/blog/why-supergrok-heavy-300-a-month-is-worth-it-for-some-teams-11220

Grok’s paid plans start at $20/month for basic access and go up to $60/month for premium features. Each plan allows about 10 prompts every 2 hours, helping manage usage without surprises