Grok’s paid plans start at $15/month for basic access, with $50/month for...

https://felixssuperperspective.brightsora.com/posts/how-much-do-file-attachments-cost-on-grok-api-a-deep-dive-into-attachments-pricing-and-api-tools-billing

Grok’s paid plans start at $15/month for basic access, with $50/month for advanced features. Both include a cap of about 10 prompts per 2 hours. Note that there’s no free trial, so you’ll want to be sure before subscribing