Grok’s paid plans start at $25/month with a cap of 10 prompts every 2 hours,...

https://bizzmarkblog.com/grok/grok-free-trial-pricing/

Grok’s paid plans start at $25/month with a cap of 10 prompts every 2 hours, and scale up to $60/month for higher usage. There’s no free trial available, so you’ll want to assess your needs carefully before subscribing