As of September 2026, Grok offers two ways to subscribe: directly at grok.com...

https://charlie-wiki.win/index.php/What_Does_Cached_Input_Pricing_Mean_on_xAI_API%3F

As of September 2026, Grok offers two ways to subscribe: directly at grok.com or through X (formerly Twitter). There’s no paid-plan trial, but a free tier lets you use about 10 prompts every 2 hours. Monthly plans on grok