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LongCat-Flash-Chat

Discover LongCat-Flash-Chat, an open-source LLM by Meituan, featuring innovative architecture for efficient, cost-effective AI dialogue and reasoning tasks.

Introduction

LongCat-Flash-Chat is an open-source LLM by Meituan, utilizing a novel Mixture-of-Experts (MoE) architecture for dynamic computation and efficient inference at low cost.

Key Features

  • Innovative Zero-Computation Experts mechanism for superior inference efficiency
  • High concurrency and multi-agent task support with outstanding performance
  • PID controller for expert bias fine-tuning and flexible resource allocation

Use Cases

  • Agent-based dialogue and complex reasoning tasks
  • Enterprise-level QA and multi-scenario applications
  • Efficient inference and cost-sensitive deployments

Technical Highlights

  • 560B total parameters, dynamically activates 18.6B~31.3B parameters
  • Supports SGLang/vLLM deployment solutions
  • MIT License, supports model distillation and transfer learning

Comments

LongCat-Flash-Chat
Resource Info
Author Meituan
Added Date 2025-09-05
Type
Model
Tags
LLM OSS