Meituan: Longcat-Flash-ChatOfficial docs

Meituan: Longcat-Flash-Chat

byMeituan
Official docs

Longcat-Flash-Chat is a language model from Meituan released on Nov 5, 2025. It reads text and writes text, with a 131K token context window and up to 131K tokens per reply.

Modalities
In / out price
n/a
Context
131K
Max output
131K
Released
Nov 5, 2025
Knowledge cutoff
n/a
  • Tool calling
  • Structured output
  • Reasoning
  • Prompt caching
  • Open weights
  • Free to use

Supported request parameters

What you can set when you call Longcat-Flash-Chat through an OpenAI compatible API.

  • Temperaturetemperature

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Longcat-Flash-Chat questions

What is the context window of Longcat-Flash-Chat?

131,072 tokens of input, and it can write up to 131,072 tokens in one reply. As a rough guide, a million tokens is around 750,000 English words.

Does Longcat-Flash-Chat support tool calling?

Not through the standard tools parameter. For an agent that calls your APIs, pick a model from the alternatives below that does.

Is Longcat-Flash-Chat open source?

No. Meituan serves it through an API only, so you cannot download the weights or host it yourself.

When was Longcat-Flash-Chat released?

Nov 5, 2025.

Catalog data from models.dev (MIT licensed), refreshed daily, last on Oct 15, 2026. The summary is written from these facts.