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Closed Source model

Grok 4.6

xAI's proprietary frontier model for long-running agents, coding, knowledge work and interactive visual projects.

Organization
xAI
Official source
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Last checked
August 13, 2026
License
Proprietary API

Closed-Source Models

Grok 4.6: Why Speed Has Become a Model-Selection Variable

Grok 4.6 has a 500K context window, agent and coding features, and a lower frontier price. But its strongest pitch is simpler: a capable model is easier to use when it gets out of your way quickly.

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