architectures · xai

Grok-3 Architecture

Dense transformer trained on xAI's Colossus supercluster. Uses Mixture-of-Experts scaling with custom CUDA kernels optimized for H100/H200 clusters.

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What this registry has checked

Quarantine. We hold the publisher’s own published hash for these weights and have recorded it against this entry. We have not downloaded and hashed the weights ourselves, so the hash is the publisher’s claim, not our measurement.

Weight file SHA-256	73e93621ccaf12dfc6a9e69ffec6069a96e35b704b2fdc23dedd14243ecfc10e

Re-check this yourself → Source → Full record →

What is recorded

Publisher	xai
Origin	United States
Licence	xAI-TOS
Modality	Text/Image
Pulls recorded here	41,001

Elsewhere in the registry

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Registry record as of 2026-06-06. Identity, licence and parameter count are properties of a release and do not move; tier can, and the verify link above re-checks it against the live registry rather than this page.