As of September 2026, Grok offers two purchase options: directly via grok.com...

https://wiki-site.win/index.php/What_Are_the_grok-4.20_Reasoning_and_Non-Reasoning_Models%3F

As of September 2026, Grok offers two purchase options: directly via grok.com or through X’s platform. There’s no paid-plan trial available. The free tier limits you to about 10 prompts every 2 hours