Hermes Registry

xAI

6 models

The Grok family of models from xAI.

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

Grok 4

grok-4
Context
256K
Max output

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
in: textin: imageout: texttoolsvisionstreaming

Grok 4.3

grok-4.3
Context
1,000K
Max output
1,000K

Grok 4.3

in: textout: textprompt_cachingstreaming

Grok Build 0.1

grok-build-0.1
Context
262K
Max output
262K

Grok Build 0.1

in: textout: textprompt_cachingstreaming