Grok offers a Basic plan at $19/month and a Pro plan at $49/month, both limited...

https://wiki-spirit.win/index.php/Grok_API_Pricing_for_Grok-4.3_Per_1M_Tokens:_A_Deep_Dive

Grok offers a Basic plan at $19/month and a Pro plan at $49/month, both limited to about 10 prompts every 2 hours. There’s no free trial on paid plans, so you’ll want to be sure it fits your needs before subscribing