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LongCat 2.0

Active Parameters

1.6T

Context Length

1.05M

Modality

Text

Architecture

Mixture of Experts (MoE)

License

MIT License

Release Date

5 Jul 2026

Knowledge Cutoff

-

API Pricing (per 1M)

Input: $0.20 · Output: $0.80

System Requirements

VRAM requirements for different quantization methods and context sizes

1,024 tokens

3130.90 GB VRAM

Consumer

229x RTX 4090

24GB VRAM

Datacenter

54x NVIDIA A100

80GB VRAM

Apple Silicon

51x Apple M3 Max

128GB VRAM

1,048,756 tokens

3290.37 GB VRAM

Consumer

244x RTX 4090

24GB VRAM

Datacenter

57x NVIDIA A100

80GB VRAM

Apple Silicon

54x Apple M3 Max

128GB VRAM

Architecture Diagram

Evaluation Benchmarks

Rank

#129

BenchmarkScoreRank

Agentic Index

Artificial Analysis

0.14

89

0.45

96

General Text

Text Arena

1401

118

Intelligence Index

Artificial Analysis

0.19

179

Rankings

Overall Rank

#129

Coding Rank

#92

About LongCat 2.0

LongCat 2.0 is a large-scale mixture-of-experts model from Meituan that activates 48B parameters out of 1.6T total. It is built for complex repository-level software modifications, extended reasoning, and agentic workflows.

Technical Specifications

Attention

Attention Structure

DeepSeek Sparse Attention

Attention Heads

64

Attention Head Dimension

128

Position Embedding

ROPE

RoPE Theta

1,000,000

Normalization

RMS Normalization

Activation Function

SwigLU

Dimensions

Hidden Dimension Size

8,192

Number of Layers

38

FFN Intermediate Size (Dense)

12,288

Multi-Token Prediction Heads

3

Tokenizer

Vocabulary Size

163,840

Mixture of Experts

Total Expert Parameters

48.0B

Number of Experts

768

Active Experts

12

FFN Intermediate Size (per Expert)

2,048

About LongCat

The LongCat model family developed by Meituan.


Other LongCat Models
  • No related models available