What are the hardware requirements for LongCat Flash Thinking 2601?

LongCat Flash Thinking 2601 requires approximately 0.1 GB of VRAM and supports a context window of 960K tokens. Quantized variants may run on less VRAM; see the Quantized Models section on this page.

Who developed LongCat Flash Thinking 2601 and how large is it?

LongCat Flash Thinking 2601 is developed by meituan-longcat, a model with 561.9b parameters. The model is published as open weights on Hugging Face and indexed on LLM Explorer with full benchmark history.

Where can I download or evaluate LongCat Flash Thinking 2601?

LongCat Flash Thinking 2601 is hosted on Hugging Face and linked from this page. LLM Explorer also lists quantized variants and similar alternatives if available.

LongCat Flash Thinking 2601 by meituan-longcat — VRAM 0.1GB, 960K context

Name: LongCat Flash Thinking 2601
Author: meituan-longcat

LongCat Flash Thinking 2601 is an open-source language model by meituan-longcat. Features: 561.9b LLM, VRAM: 0.1GB, Context: 960K, License: mit, LLM Explorer Score: 0.27.

Conversational Custom code Eval-results Longcat-flash-thinking-2601 Region:us Safetensors

Model Card on HF 🤗: https://huggingface.co/meituan-longcat/LongCat-Flash-Thinking-2601

LongCat Flash Thinking 2601 Parameters and Internals

LLM Name	LongCat Flash Thinking 2601
Repository 🤗	https://huggingface.co/meituan-longcat/LongCat-Flash-Thinking-2601
Model Size	561.9b
Required VRAM	0.1 GB
Updated	2026-07-26
Maintainer	meituan-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 Architecture	LongcatCausalLM
License	mit
Context Length	983040
Model Max Length	983040
Vocabulary Size	131072

Rank the LongCat Flash Thinking 2601 capabilities

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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

Quantized Models of the LongCat Flash Thinking 2601

Model	Likes	Downloads	VRAM
...ngCat Flash Thinking 2601 4bit	1	66	164 GB

Best Alternatives to LongCat Flash Thinking 2601

Best Alternatives	Context / RAM	Downloads	Likes
LongCat Flash Thinking ZigZag	960K / 0.1 GB	48	32
...ongCat Flash Thinking 2601 FP8	960K / 0.1 GB	31	13
LongCat HeavyMode Summary	960K / 0.1 GB	29	13