Grok’s paid plans start at $15/month and $50/month for higher usage, with a cap...

https://miasniceword.cavandoragh.org/team-of-five-grok-pricing-math-supergrok-vs-x-premium

Grok’s paid plans start at $15/month and $50/month for higher usage, with a cap of about 10 prompts every 2 hours to keep costs predictable. Note, there’s no free trial available, so you’ll want to be sure before committing to a subscription