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

https://holdenssplendiddigests.zenbloomer.com/posts/does-grok-have-gdpr-issues-in-the-eu-or-uk-a-comprehensive-look

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