Grok’s paid plans start at $49/month, with a $99/month option offering more...

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

Grok’s paid plans start at $49/month, with a $99/month option offering more features. Usage caps limit you to about 10 prompts every 2 hours, so pacing your queries is important. Note there’s no free trial—subscriptions begin with immediate billing