Grok’s paid plans start at $29/month and go up to $99/month, with a limit of...

https://wiki-club.win/index.php/Does_Grok_Have_Any_Published_Price_for_Video_Generation_on_the_API%3F

Grok’s paid plans start at $29/month and go up to $99/month, with a limit of about 10 prompts every 2 hours to keep usage manageable. There’s no free trial, so you pay upfront. This straightforward pricing helps teams budget without unexpected costs.