Grok’s paid plans start at $40/month for basic access and $75/month for...

https://simonsnewchat.rivetgarden.com/posts/can-two-supergrok-users-get-different-models-on-the-same-day

Grok’s paid plans start at $40/month for basic access and $75/month for enhanced features, with a cap of about 10 prompts every 2 hours. There’s no free trial, so you’ll need to commit upfront