Grok’s paid plans start at $30/month and go up to $100/month, with a cap of...

https://deansinspiringperspective.hexaforgey.com/posts/what-do-you-get-with-supergrok-at-30-a-month

Grok’s paid plans start at $30/month and go up to $100/month, with a cap of about 10 prompts every 2 hours. There’s no free trial available, so you’ll want to pick a plan that fits your regular usage