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LongCat Flash Thinking 2601 by meituan-longcat

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LongCat Flash Thinking 2601 is an open-source language model by meituan-longcat. Features: 561.9b LLM, VRAM: 0.1GB, Context: 960K, License: mit.

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Model Card on HF 🤗: https://huggingface.co/meituan-longcat/LongCat-Flash-Thinking-2601 
LongCat Flash Thinking 2601 (meituan-longcat/LongCat-Flash-Thinking-2601)
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LongCat Flash Thinking 2601 Parameters and Internals

LLM NameLongCat Flash Thinking 2601
Repository 🤗https://huggingface.co/meituan-longcat/LongCat-Flash-Thinking-2601 
Model Size561.9b
Required VRAM0.1 GB
Updated2026-03-27
Maintainermeituan-longcat
Model Files  1.6 GB: 1-of-75   1.9 GB: 2-of-75   0.2 GB: 3-of-75   1.8 GB: 4-of-75   0.1 GB: 5-of-75   16.0 GB: 6-of-75   15.9 GB: 7-of-75   15.9 GB: 8-of-75   16.1 GB: 9-of-75   16.0 GB: 10-of-75   16.0 GB: 11-of-75   15.9 GB: 12-of-75   15.9 GB: 13-of-75   16.1 GB: 14-of-75   16.0 GB: 15-of-75   16.0 GB: 16-of-75   15.9 GB: 17-of-75   15.9 GB: 18-of-75   16.1 GB: 19-of-75   16.0 GB: 20-of-75   16.0 GB: 21-of-75   15.9 GB: 22-of-75   15.9 GB: 23-of-75   16.1 GB: 24-of-75   16.0 GB: 25-of-75   16.0 GB: 26-of-75   15.9 GB: 27-of-75   15.9 GB: 28-of-75   16.1 GB: 29-of-75   16.0 GB: 30-of-75   16.0 GB: 31-of-75   15.9 GB: 32-of-75   15.9 GB: 33-of-75   16.1 GB: 34-of-75   16.0 GB: 35-of-75   16.0 GB: 36-of-75   15.9 GB: 37-of-75   15.9 GB: 38-of-75   16.1 GB: 39-of-75   16.0 GB: 40-of-75   16.0 GB: 41-of-75   15.9 GB: 42-of-75
Model ArchitectureLongcatCausalLM
Licensemit
Context Length983040
Model Max Length983040
Vocabulary Size131072

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Instruction Following and Task Automation  
Factuality and Completeness of Knowledge  
Censorship and Alignment  
Data Analysis and Insight Generation  
Text Generation  
Text Summarization and Feature Extraction  
Code Generation  
Multi-Language Support and Translation  

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