Hermes Registry

xAI

4 models

The Grok family of models from xAI.

Homepage Docs
API basehttps://api.x.ai/v1
Env keyXAI_API_KEY

Grok 4

grok-4
Context
256K
Max output
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Flagship reasoning model from xAI.

in: textin: imageout: texttoolsvisionreasoningstreamingstructured_outputs

Grok 3

grok-3
Context
131K
Max output
—
in: textout: texttoolsstreamingstructured_outputs

Grok 3 Mini

grok-3-mini
Context
131K
Max output
—

Lightweight reasoning model.

in: textout: texttoolsreasoningstreaming

Grok 2 Vision

grok-2-vision-1212
Context
33K
Max output
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in: textin: imageout: texttoolsvisionstreaming