models · meituan

LongCat-Flash-Chat

Meituan LongCat-Flash-Chat. 560B. Arena 1039. GPQA Diamond 73.2%, AIME 61.3%. Specialised long-context chat model from Meituan AI Lab.

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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	37dd020966931af648e8ae44fa42391eee5567b69aab943373c22510254b7ad7
Method	hf-published-sha256

Re-check this yourself → Source → Full record →

What is recorded

Publisher	meituan
Origin	Recorded as a covered nation under 10 U.S.C. § 4872(f) — the PRC, Russia, Iran or North Korea. The registry did not record which.
Licence	MIT
Parameters	561,862,880,256 (561.9B)
Context window	128K
Native precision	BF16
Pulls recorded here	150,020
Downloads reported upstream	23,720

Reported scores

GPQA Diamond	73.2

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

Elsewhere in the registry

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Registry record as of 2026-09-26. 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.