Grok’s paid plans start at $20/month for up to 100 prompts per month, with a...

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

Grok’s paid plans start at $20/month for up to 100 prompts per month, with a cap of about 10 prompts every 2 hours to manage usage. The $50/month plan increases limits but both options don’t offer a free trial