Longcat Flash Thinking 2601 longcat-flash-thinking-2601

meituan-longcat · longcat

unranked — no quality signals yet

params
561.9B
arch
moe
license
mit open weights
released
Jan 2026
downloads/30d
1.5k

# architecture

attn shared MHA ×64 router expert ×512 expert out ×28 layers 561.9B pool
layers
28
d_model
6144
heads
64q / 64kv
head dim
96
experts
top-0 of 512
vocab
131072

signal path of one layer, generated from the registry's structured fields — dimension lines quote the model's real numbers; an MoE trace forks at the router, a dense trace runs straight through. Geometry fields come from the repo's config.json.

# why ranked

Overall: provisional — score 74.2 ● low — a single signal; treat with caution

provisional: too few independent signals for a numbered position — the score is shown, but this model sorts after every ranked model.

signalweightinput (0–100)
aa_intelligence 0.70 —
bench_composite 0.30 74.2

benchmark panel evidence:

complete panelscore (0–100)
aime-2025-v189.0
browsecomp-v159.4

missing signals are dropped and the remaining weights renormalized — never imputed.

full methodology

# trend

OGM score · last 44 days
OGM score over 44 days

# benchmarks

benchmarkscoresourcedate
AIME 2025 1.0 / 1 LLM Stats —
Browsecomp 0.6 / 1 LLM Stats —
Browsecomp-zh 0.7 / 1 LLM Stats —
Tau2-telecom 1.0 / 1 LLM Stats —

# where to run

no known API providers — download the weights from Hugging Face and run them yourself.

source aliases
llmstats
longcat-flash-thinking-2601