LongCat-Flash-Thinking

Model overview

Meituan LongCat-Flash-Thinking reasoning model.

general LLMreasoningcodingchatcode generationlocal inferenceevaluation

Representative version

Company	Meituan
Release	2025-09-22
Release type	Model release
Parameters	560B / 27B active
Architecture	Not disclosed
Context	128,000
Input modalities	text / code
Output modalities	text / code
Tool use / function calling	Not disclosed
Structured output / reasoning	Confirmed: Reasoning
Vision / audio / video	Not disclosed
Open weights / License	Weights available / MIT (license source pending verification) meituan-longcat-flash-thinking-phase-3-5 · License source pending verification
Vendor API	No vendor API offered Meituan LongCat-Flash-Thinking announcementmeituan-longcat-flash-thinking-phase-3-5 · 2025-09-22
OpenRouter	Not separately listed on OpenRouter
Pricing	No reliable public source
Benchmark	No reliable public source
Public signals	2 community discussions / 1 activity snapshot
Use cases	assistant chat / code generation / local inference / research evaluation
Claim evidence	Release / model specs / weightsMeituan LongCat-Flash-Thinking announcementLongCat-Flash-Thinking · 2025-09-22

OpenRouter

Pricing / context / availability

OpenRouter	Not separately listed on OpenRouter
OpenRouter listing	Not separately listed in the current OpenRouter public list
Mapped version	LongCat-Flash-Thinking meituan-longcat-flash-thinking-phase-3-5
Pricing	No reliable public source
Context	128000
Speed/Latency	No reliable public source
Snapshot time	2026-07-15T20:11:41.551Z
Source	View source

Public activity counters

Platform	Entry	Downloads	Likes	Spaces	Time	Source
huggingface	meituan-longcat/LongCat-Flash-Thinking	100	148	1	2026-07-15T20:11:41.551Z	View source

Evidence gaps

OpenRouter not separately verifiedNo reliable benchmark sourceNo linkable real reviewSpeed/latency not disclosed