LangMart: Meituan: LongCat Flash Chat
Model Overview
| Property | Value |
|---|---|
| Model ID | openrouter/meituan/longcat-flash-chat |
| Name | Meituan: LongCat Flash Chat |
| Provider | meituan |
| Released | 2025-09-09 |
Description
LongCat-Flash-Chat is a large-scale Mixture-of-Experts (MoE) model with 560B total parameters, of which 18.6B–31.3B (≈27B on average) are dynamically activated per input. It introduces a shortcut-connected MoE design to reduce communication overhead and achieve high throughput while maintaining training stability through advanced scaling strategies such as hyperparameter transfer, deterministic computation, and multi-stage optimization.
This release, LongCat-Flash-Chat, is a non-thinking foundation model optimized for conversational and agentic tasks. It supports long context windows up to 128K tokens and shows competitive performance across reasoning, coding, instruction following, and domain benchmarks, with particular strengths in tool use and complex multi-step interactions.
Description
LangMart: Meituan: LongCat Flash Chat is a language model provided by meituan. This model offers advanced capabilities for natural language processing tasks.
Provider
meituan
Specifications
| Spec | Value |
|---|---|
| Context Window | 131,072 tokens |
| Modalities | text->text |
| Input Modalities | text |
| Output Modalities | text |
Pricing
| Type | Price |
|---|---|
| Input | $0.20 per 1M tokens |
| Output | $0.80 per 1M tokens |
Capabilities
- Max tokens
- Temperature
- Top p
Detailed Analysis
Meituan: LongCat Flash Chat