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LongCat Flash Chat

huggingface.co·Infrastructure

LongCat-Flash-Chat is an open-weight large language model developed by Meituan LongCat. It is designed for conversational AI, tool use, and function calling tasks. The model can be downloaded from Hugging Face and run locally or self-hosted via inference frameworks such as Hugging Face Transformers, vLLM, or Ollama.

Open SourceMITWebCLIAPISelf-hosted
LLongCat Flash Chat preview
Visit huggingface.co↗
1.4kstars
71forks
4features
2025since

Overview

4 features

LongCat Flash Chat is a Foundation models & chat project. It focuses on running high-performance open-weight chat and tool-calling models locally or in self-hosted environments without relying on proprietary APIs. LongCat Flash Chat is an open-source project aimed at developers. The project is open source (MIT). LongCat Flash Chat is available on the web, the command line, and API, and it can be self-hosted.

Meituan LongCat builds and maintains LongCat Flash Chat, and it first shipped in 2025. The project is developed in the open on GitHub with 1.4k stars and 33 commits in the last 90 days. Among its 4 catalogued features are Tool Calling, Chat Template, and Custom Tokens.

Summary written by a language model from the project’s public pages.

  • ✓Tool Calling
  • ✓Chat Template
  • ✓Custom Tokens
  • ✓Long Context
Tags
open-weightschat-modeltool-callingllmlong-context
AI capabilities
Text
Weights: Open

Built with & integrations

Hosting
AWS
AI providers
local_oss
Runs on
BrowserCLIAPI-onlySelf-hosted
Detected from
AWS
x-amz-cf-id header · x-amz-cf-pop header · via header
local_oss
bollama in the HTML · bllama in the HTML · bvllm in the HTML

Trust & compliance

License
MIT
Verified signals
✓HTTPS✓Privacy Policy✓Terms of Service✓Open Source✓GitHub · ★ 1.4k✓Active maintenance
Legal
Privacy Policy →Terms of Service →

Indexing history

1

What PulseGate has recorded for this listing

  1. Indexed21 Jul · 13:37 UTC
    meituan-longcat/LongCat-Flash-Chat verified against its public source
    Source: PulseGate · Open ↗

Frequently asked questions about LongCat Flash Chat

What does LongCat Flash Chat do?
LongCat Flash Chat focuses on running high-performance open-weight chat and tool-calling models locally or in self-hosted environments without relying on proprietary APIs. It is catalogued under Foundation models & chat on PulseGate.
Who should use LongCat Flash Chat?
LongCat Flash Chat is an open-source project built for developers.
Does LongCat Flash Chat have a free plan?
Yes — LongCat Flash Chat is open source under the MIT license and free to use.
What platforms does LongCat Flash Chat run on?
LongCat Flash Chat runs on the web, the command line, and API. It can also be self-hosted.
Is LongCat Flash Chat still active?
The GitHub repository shows 33 commits in the last 90 days.
What are alternatives to LongCat Flash Chat?
Similar projects tracked by PulseGate include Ouro 1.4B, Bge Reranker V2 M3 Ko, and Qwen 72B.Ouro 1.4BBge Reranker V2 M3 KoQwen 72B
Who develops LongCat Flash Chat?
LongCat Flash Chat is developed by Meituan LongCat.
How long has LongCat Flash Chat been around?
LongCat Flash Chat first shipped in 2025.

At a glance

Pricing
Open Source
Platforms
Cli · Web
Languages
English
Open source
Yes · ★ 1.4k
License
MIT
Built for
developers
Model
Open source
Solves
Running high-performance open-weight chat and tool-calling models locally or in self-hosted environments without relying on proprietary APIs.

Registered as

GitHub
meituan-longcat/LongCat-Flash-Chat
Hugging Face
meituan-longcat/LongCat-Flash-Chat

Developer

Meituan LongCat
Team
↗ GitHub

Open source

View on GitHub →
Stars
1,352
Forks
71
Open issues
15
Last commit
23 Jun 2026
Commits 90d
33
Contributors
6
Authorship
Team
Default branch
main

Live coverage

Identity confidence
Medium · 70.4
Indexed
21 Jul 2026
Lifecycle
Alive
Last seen
21 Jul 2026
Identity audit (13)
Slug
meituan-longcat-longcat-flash-chat-huggingface-co
Lifecycle state recorded
21 Jul 2026
Verification state
Indexed for public listing
Listing state
Listed: yes
Index status
Included in index
Latest evidence snapshot
21 Jul 2026
Timeline basis
Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from
Derived from the project's own page and URL.
Category from
Derived from the model's own Hugging Face metadata.
Summary from
Written by a language model from public pages.
Languages from
Detected by a language model from page content.
Last updated
29 Jul 2026
Canonical URL
https://huggingface.co/meituan-longcat/LongCat-Flash-Chat

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