Kimi K2 Thinking

Kimi K2 Thinking

Moonshot AI
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About

GPT-5.1 Thinking is the advanced reasoning model variant in the GPT-5.1 series, designed to more precisely allocate “thinking time” based on prompt complexity, responding faster to simpler requests and spending more effort on difficult problems. On a representative task distribution, it is roughly twice as fast on the fastest tasks and twice as slow on the slowest compared with its predecessor. Its responses are crafted to be clearer, with less jargon and fewer undefined terms, making deep analytical work more accessible and understandable. The model dynamically adjusts its reasoning depth, achieving a better balance between speed and thoroughness, particularly when dealing with technical concepts or multi-step questions. By combining high reasoning capacity with improved clarity, GPT-5.1 Thinking offers a powerful tool for tackling complex tasks, such as detailed analysis, coding, research, or technical explanations, while reducing unnecessary latency for routine queries.

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.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Researchers and analysts in need of a tool for deep reasoning and technical problem-solving that delivers clear, thorough answers on complex tasks

Audience

Developers and AI research teams seeking a solution for building autonomous agents, multi-step reasoning systems and tool-enabled workflows

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version
Free Trial

Pricing

Free
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

OpenAI
Founded: 2015
United States
openai.com/index/gpt-5-1/

Company Information

Moonshot AI
Founded: 2023
United States
moonshotai.github.io/Kimi-K2/thinking.html

Alternatives

Alternatives

Claude Opus 4.5

Claude Opus 4.5

Anthropic
Claude Opus 4.1

Claude Opus 4.1

Anthropic
Claude Opus 4.5

Claude Opus 4.5

Anthropic
DeepSeek-V3.2

DeepSeek-V3.2

DeepSeek
MiMo-V2-Flash

MiMo-V2-Flash

Xiaomi Technology
Qwen3-Max

Qwen3-Max

Alibaba

Categories

Categories

Integrations

Agentforce Vibes
Augment Code
Bash
C++
ChatGPT Enterprise
ChatGPT Go
ChatGPT Plus
ChatGPT Pro
EaseMate AI
GPT-5
GPT-5.1
GPT-5.1 Thinking
GPT-5.2 Pro
Go
Google Drive
JetBrains AI Assistant
JetBrains Junie
Kineto by JetBrains
Nebius Token Factory
ThreadMaster.ai

Integrations

Agentforce Vibes
Augment Code
Bash
C++
ChatGPT Enterprise
ChatGPT Go
ChatGPT Plus
ChatGPT Pro
EaseMate AI
GPT-5
GPT-5.1
GPT-5.1 Thinking
GPT-5.2 Pro
Go
Google Drive
JetBrains AI Assistant
JetBrains Junie
Kineto by JetBrains
Nebius Token Factory
ThreadMaster.ai
Claim GPT-5.1 Thinking and update features and information
Claim GPT-5.1 Thinking and update features and information
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