Explore Meituan's LongCat Flash Chat Model

Advanced text interactions with LongCat Flash Chat.

Input: text Output: text Context: 131,072 tokens Release: 2025-09-09

Discover Meituan's LongCat Flash Chat, a large-scale MoE model released in September 2025. With a context window of up to 128K tokens, this model is designed for text-to-text interactions, excelling in reasoning, coding, and complex multi-step tasks. It features a unique shortcut-connected MoE design to enhance throughput and stability. Ideal for conversational and agentic tasks, LongCat Flash Chat is versatile in handling long context inputs, making it a valuable tool for diverse applications.

Use Cases

Here are a few ways teams apply Meituan: LongCat Flash Chat (free) in practice—from fast drafting to multimodal understanding. Adapt these ideas to your workflow.

Enhance multi-step reasoning tasks

Improve coding assistance

Facilitate long-form text analysis

Streamline tool-based interactions

Support detailed instruction following

Key Features

A quick look at the capabilities that make this model useful in real projects.

Supports up to 128K tokens in context

Optimized for conversational tasks

Shortcut-connected MoE design

Handles complex multi-step interactions

High throughput with stable training

Specs

Overview

Vendor
meituan

Model ID
meituan/longcat-flash-chat:free

Release
2025-09-09

Modalities & context

Input
text

Output
text

Context
131,072 tokens

Parameters & defaults

Supported parameters: frequency_penalty, max_tokens, presence_penalty, repetition_penalty, response_format, seed, stop, structured_outputs, temperature, tool_choice, tools, top_k, top_p

Defaults: temperature 0.2, top_p 0.95

Benchmark tests: Meituan: LongCat Flash Chat (free)

We ran this model against a few representative prompts to show its range. Review the outputs below and be the judge.

Text

Prompt:

Write 150 words on how AI might positively upend work, leisure and creativity

AI has the potential to positively transform work, leisure, and creativity by enhancing efficiency, personalization, and innovation. In the workplace, AI automates repetitive tasks, freeing employees to focus on strategic, meaningful work, while predictive analytics improve decision-making. Remote collaboration tools powered by AI foster global teamwork and inclusivity. In leisure, AI curates hyper-personalized experiences—recommending music, films, or travel based on individual preferences—making free time more enriching. AI-driven virtual companions and immersive environments, like AI-enhanced VR, offer new forms of relaxation and social interaction. Creativity flourishes as AI acts as a collaborative partner: generating ideas, composing music, drafting stories, or designing visuals, enabling both amateurs and professionals to explore novel expressions. Tools like generative AI lower entry barriers, democratizing art and innovation. Rather than replacing humans, AI amplifies human potential, encouraging us to focus on imagination, empathy, and complex problem-solving—ultimately reshaping how we work, play, and create in more fulfilling, inclusive, and imaginative ways.

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up.end

/ˌəpˈend/

verb

To “upend” means to completely disrupt, overturn, or drastically change the established order or structure of something. It implies a significant shift or alteration that can potentially have far-reaching consequences. When something is upended, it is turned upside down or transformed in a way that challenges conventional norms or expectations. The term often carries a sense of innovation, transformation, and sometimes even a hint of upheaval, indicating that the changes are not just minor adjustments but rather a fundamental reimagining of the status quo.

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