architectures · microsoft

BitNet b1.58 (1-bit LLM)

1.58-bit weight quantization (ternary weights: -1, 0, +1) achieving near-full-precision quality with 3× memory reduction and faster inference.

Verify

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	ea6cd97f025a9dcbe43be6aabcf5dc8755d971719db0df6c84dc9c1d20ad1646

Re-check this yourself → Source → Full record →

What is recorded

Publisher	microsoft
Origin	United States
Licence	MIT
Modality	Text
Pulls recorded here	39,001

Elsewhere in the registry

All architectures → Browse with filters → What will run on my hardware? →

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.