Grok’s paid plans start at $40/month for basic access and $75/month for...

https://qqpipi.com//index.php/How_Much_Are_the_$25_Grok_API_Trial_Credits_Worth_in_Testing%3F

Grok’s paid plans start at $40/month for basic access and $75/month for enhanced features, with a cap of about 10 prompts every 2 hours. There’s no free trial, so you’ll need to commit upfront