Grok’s paid plans start at $20/month for basic access and $50/month for premium...

https://www.normalbookmarks.win/grok-offers-a-base-plan-at-15-month-with-a-cap-of-10-prompts-every-2-hours

Grok’s paid plans start at $20/month for basic access and $50/month for premium features, with usage capped at about 10 prompts every 2 hours. Note, there’s no free trial, so you’ll want to be sure it fits before committing