LongCat Flash Chat is Meituan's language model with a 128K context window and up to 100K output tokens. A high-throughput MoE chat LLM with 128k context window from Meituan, optimized for agentic tasks and tool use.
Specifications
Canonical IDmeituan-longcat-flash-chat
TypeLanguage
StatusActive
CreatorMeituanMeituan
Providers
Context Window128K tokens
Max Output100K tokens
Input ModalitiesText
Output ModalitiesText
Release Date · 9 months ago

Capabilities

Input1/5
Text
Image·
Audio·
Video·
PDF·
Output1/5
Text
Image·
Audio·
Video·
Embedding·
Capabilities1/13
Reasoning·
Adaptive Reasoning·
Function Calling
Parallel Function Calling·
Structured Outputs·
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·

Pricing by Provider

ProviderStandard
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
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OpenRouter
$0.200$0.800$0.200

Cost Calculator

Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
LongCat Flash Chat128KCurrent
LongCat Flash LiteAvailable
LongCat Flash Thinking33KAvailable

Other models

ModelTierReleasedContextInput / 1MOutput / 1M
LongCat Image

Model IDs