models · stepfun

Step-3

StepFun Step-3 MoE model. Strong coding, math, and multimodal capabilities.

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	133da8f6288123950b3aa478c92f254e406f42761000dc1dab8c30e2f237de40
Method	closed-weights

Re-check this yourself → Source → Full record →

What is recorded

Publisher	stepfun
Origin	China
Licence	StepFun-TOS
Pulls recorded here	32,006

Reported scores

GPQA Diamond	82.1
AIME 2025	81.5

Reported by a third party and recorded here, not re-run by us.

Elsewhere in the registry

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

Registry record as of 2026-09-28. 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.