Kimi K2 ThinkingMoonshot AI
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LongCat-2.0LongCat
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Related Products
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About
Kimi K2 Thinking is an advanced open source reasoning model developed by Moonshot AI, designed specifically for long-horizon, multi-step workflows where the system interleaves chain-of-thought processes with tool invocation across hundreds of sequential tasks. The model uses a mixture-of-experts architecture with a total of 1 trillion parameters, yet only about 32 billion parameters are activated per inference pass, optimizing efficiency while maintaining vast capacity. It supports a context window of up to 256,000 tokens, enabling the handling of extremely long inputs and reasoning chains without losing coherence. Native INT4 quantization is built in, which reduces inference latency and memory usage without performance degradation. Kimi K2 Thinking is explicitly built for agentic workflows; it can autonomously call external tools, manage sequential logic steps (up to and typically between 200-300 tool calls in a single chain), and maintain consistent reasoning.
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About
LongCat-2.0 is a 1.6 trillion total-parameter Mixture-of-Experts language model built on AI ASIC superpods, with about 48 billion parameters activated per token and strong performance across coding and agentic tasks. It is a substantial step up from previous LongCat models, combining large-scale sparse architecture with dedicated post-training for real-world software engineering, tool use, long-context reasoning, and multi-step agent workflows. LongCat-2.0 is trained and deployed entirely on AI ASIC superpods, with pretraining spanning more than 35 trillion tokens and millions of accelerator-hours, demonstrating frontier-scale training on alternative hardware platforms. To strengthen long-horizon tasks, the model introduces LongCat Sparse Attention and is trained on hundreds of billions of tokens of 1M-context data, giving it native support for ultra-long context tasks and reliable long-document understanding.
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Audience
Developers and AI research teams seeking a solution for building autonomous agents, multi-step reasoning systems and tool-enabled workflows
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Audience
AI coding-platform teams that need a large open MoE model for agentic coding, long-context reasoning, tool use, and complex software automation
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Support
Phone Support
24/7 Live Support
Online
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Support
Phone Support
24/7 Live Support
Online
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API
Offers API
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API
Offers API
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Screenshots and Videos |
Screenshots and Videos |
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Pricing
Free
Free Version
Free Trial
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Pricing
No information available.
Free Version
Free Trial
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Reviews/
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Reviews/
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Training
Documentation
Webinars
Live Online
In Person
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Training
Documentation
Webinars
Live Online
In Person
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Company InformationMoonshot AI
Founded: 2023
United States
moonshotai.github.io/Kimi-K2/thinking.html
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Company InformationLongCat
Founded: 2023
China
longcat.chat/blog/longcat-2.0/
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Categories |
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Integrations
OpenClaw
GPT-5
GPT-5.1 Instant
GPT-5.1 Thinking
GPT-5.2 Instant
GPT-5.2 Pro
GPT-5.3 Instant
GPT-5.4
GPT-5.4 Pro
GPT-5.4 mini
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Integrations
OpenClaw
GPT-5
GPT-5.1 Instant
GPT-5.1 Thinking
GPT-5.2 Instant
GPT-5.2 Pro
GPT-5.3 Instant
GPT-5.4
GPT-5.4 Pro
GPT-5.4 mini
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