optimizers · facebookresearch

SM3

Memory-efficient adaptive optimizer achieving Adam-quality with 3× less memory.

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	89d4ac9d7c2fe9409a61e9ef44d366966b920bc1dd311b5cd814af3bc8f3c07b

Re-check this yourself → Source → Full record →

What is recorded

Publisher	facebookresearch
Origin	United States
Licence	Apache-2.0
Pulls recorded here	6,502

Elsewhere in the registry

All optimizers → 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.