LongCat Flash Lite
LongCatOpen WeightMIT · Commercial OK
Description
LongCat-Flash-Lite is a lightweight MoE model from Meituan with 68.5B total parameters and only 2.9B-4.5B activated per token. It explores N-gram embedding expansion as a new scaling direction, supporting 256K context length via YaRN. Optimized for agent tooling and programming tasks, achieving 500-700 tokens per second inference speed while maintaining strong performance on coding, math, and agentic benchmarks.
Release Date
2026-01-28
Parameters
68.5B
Context Length
—
Modalities
text
Capability Radar
20
general
18
coding
64
reasoning
40
scienceest.
70
agents
0
multimodal
Science uses a reasoning proxy when dedicated science benchmarks are unavailable.
Rankings
| Domain | #Rank | Score | Source |
|---|---|---|---|
| Agents & Tools | 93 | 34.0 | LS |
| Code Ranking | 283 | 27.0 | AA |
| General Ranking | 206 | 49.0 | AA |
| Science | 261 | 41.0 | AA |
Benchmark Scores (LLM Stats)
Agents
Terminal-Bench
33.8%SR
Biology
GPQA
66.8%SR
Code
SWE-Bench Verified
54.4%SR
SWE-bench Multilingual
38.1%SR
Communication
Tau2 Retail
73.1%SR
Tau2 Telecom
72.8%SR
Tau2 Airline
58.0%SR
Finance
MMLU
85.5%SR
MMLU-Pro
78.3%SR
General
CMMLU
82.5%SR
Math
MATH-500
96.8%SR
AIME 2024
72.2%SR
AIME 2025
63.2%SR
AA Evaluation Indices
Intelligence Index23.9
Coding Index16.5
Tau20.8
Gpqa0.6
Ifbench0.4
Scicode0.3
Lcr0.3
Terminalbench Hard0.1
Hle0.1
LLM Stats Category Scores
Finance80
General80
Healthcare80
Language80
Legal80
Math80
Tool Calling70
Biology70
Chemistry70
Communication70
Physics70
Reasoning70
Frontend Development50
Code40
Agents30
Pricing
Input PriceFree
Output PriceFree
Blended Price (3:1)Free
Speed
Tokens/sec149.1 tokens/s
Time to First Token7.15s
Time to Answer7.15s
Available Providers
(LS internal units)| Provider | Input Price | Output Price |
|---|---|---|
| Meituan | 100K | 400K |