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

https://bizzmarkblog.com/how-to-audit-my-code-for-old-grok-model-aliases/

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