Grok 4 Heavy

The most powerful version of Grok 4; the SuperGrok Heavy tier was introduced to give access to it.

Understands

text

This model cannot see images or video — you can only give it text. That matters if you planned to show it screenshots or documents with pictures.

Produces

text, code

Contents verified with the vendor: 2026-08-18

Included in subscriptions

• Grok xAI · SuperGrok Heavy