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

https://direct-wiki.win/index.php/Team_of_Five_Grok_Pricing_Math:_SuperGrok_vs_X_Premium%2B

Grok’s paid plans start at $20/month for basic access and $50/month for advanced features, each limiting usage to about 10 prompts every 2 hours. There’s no free trial, so you’ll want to be sure before subscribing