Grok’s paid plans start at $25/month with a cap of 10 prompts every 2 hours,...

https://aged-wiki.win/index.php/Is_SuperGrok_Heavy_Overkill_for_Writing_and_Drafting_Work%3F

Grok’s paid plans start at $25/month with a cap of 10 prompts every 2 hours, and scale up to $60/month for higher usage. There’s no free trial available, so you’ll want to assess your needs carefully before subscribing