models · ai21

Jamba 1.6 Mini

AI21 Jamba 1.6 Mini — compact hybrid with 256K context. Best open model for long documents.

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	278d2c14f85c4e6d604510155ad5236e7c573a02ac56b91c3ddc258ccb3c2248
Method	hf-published-sha256

Re-check this yourself → Source → Full record →

What is recorded

Publisher	ai21
Origin	Israel
Licence	Apache-2.0
Publisher’s own licence statement	other
Parameters	51,570,323,328 (51.6B)
Native precision	BF16
Pulls recorded here	17,006
Downloads reported upstream	33

Reported scores

MMLU-Pro	36.7
GPQA Diamond	30
MATH-500	25.7
LiveCodeBench	7.1
Humanity's Last Exam	4.3

Reported by a third party and recorded here, not re-run by us. Source: artificialanalysis.ai/api/v2.

Elsewhere in the registry

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

Registry record as of 2026-06-13. 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.