MeituanReleased on Sep 22, 2025

LongCat-Flash-Thinking: Benchmarks, Pricing & Size

LongCat-Flash-Thinking is a language model from Meituan, released in September 2025.

LongCat-Flash-Thinking is Meituan's reasoning model built on the LongCat-Flash foundation with 560B total parameters (MoE, ~27B activated). It introduces a training pipeline specifically tuned for advanced reasoning, featuring Re-thinking

Input
Text
Output
Text
Speed
Latency p953.00s
Throughput P95100char/s
Cost
$0.40/ 1M · 8:1 in:out
$0.30 in · $1.20 out

LongCat-Flash-Thinking pricing

Providers

LongCat-Flash-Thinking starts at $0.300 per million input tokens and $1.20 per million output tokens via Meituan.

ProviderInput $/MOutput $/MMax InputMax OutputLatency p95 sThroughput P95QuantInputOutput
Meituan logoMeituan
$0.300$1.20128.0K128.0K
3.00
100 c/s
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LongCat-Flash-Thinking model size

LongCat-Flash-Thinking has 560 billion parameters. See how it compares to other models in the same parameter range.

Parameters
560BMoE
Frontier (200B+)
560B
1B7B70B405B

LongCat-Flash-Thinking API

API access coming soon

LongCat-Flash-Thinking will be available through our gateway shortly.

LongCat-Flash-Thinking examples

Recent arena outputs from LongCat-Flash-Thinking, picked from the highest-ranked matchups.

LongCat-Flash-Thinking license

LongCat-Flash-Thinking is released under the MIT license, which permits commercial use, has 560.0B parameters.

License
MIT
Commercial use allowed
Parameters
560.0B

MIT License - allows commercial use

FAQ

Common questions about LongCat-Flash-Thinking.

When was LongCat-Flash-Thinking released?

LongCat-Flash-Thinking was released on September 22, 2025 by Meituan. This is the official LongCat-Flash-Thinking release date tracked on LLM Stats.

Is LongCat-Flash-Thinking available via API?

Yes, LongCat-Flash-Thinking is available via API. See the official documentation for authentication and endpoint details. It is served by 1 provider tracked on LLM Stats.

How big is LongCat-Flash-Thinking?

LongCat-Flash-Thinking has 560 billion parameters. It ships as an open-weight model, so you can download and run it on your own hardware.

Who created LongCat-Flash-Thinking?

LongCat-Flash-Thinking was created by Meituan.

What is the license for LongCat-Flash-Thinking?

LongCat-Flash-Thinking is released under the MIT license. This is an open-source / open-weight license that permits self-hosting.

Where can I use LongCat-Flash-Thinking?

LongCat-Flash-Thinking is available through 1 provider including Meituan.

Where is the LongCat-Flash-Thinking paper or technical report?

LongCat-Flash-Thinking has a paper or technical report available at https://arxiv.org/abs/2509.18883. Use that source for architecture, training, release and evaluation details.