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

https://noon-wiki.win/index.php/Understanding_Collection_Storage_Costs:_$0.10_per_GiB_per_Day_on_the_xAI_API

As of September 2026, Grok offers two ways to subscribe: directly at grok.com or through X’s platform. There’s no paid-plan trial available. The free tier limits you to around 10 prompts every 2 hours. Paid plans on grok