Grok’s paid plans start at $20/month and $100/month for higher tiers, with a...

https://technivorz.com/does-x-premium-include-companions-memory-and-projects/

Grok’s paid plans start at $20/month and $100/month for higher tiers, with a cap of about 10 prompts every 2 hours per user. There’s no free trial available, so you’ll want to be sure it fits your needs before subscribing