Kimi K2

Kimi K2

Moonshot AI
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About

Grok 4.1 Fast is the newest xAI model designed to deliver advanced tool-calling capabilities with a massive 2-million-token context window. It excels at complex real-world tasks such as customer support, finance, troubleshooting, and dynamic agent workflows. The model pairs seamlessly with the new Agent Tools API, which enables real-time web search, X search, file retrieval, and secure code execution. This combination gives developers the power to build fully autonomous, production-grade agents that plan, reason, and use tools effectively. Grok 4.1 Fast is trained with long-horizon reinforcement learning, ensuring stable multi-turn accuracy even across extremely long prompts. With its speed, cost-efficiency, and high benchmark scores, it sets a new standard for scalable enterprise-grade AI agents.

About

Kimi K2 is a state-of-the-art open source large language model series built on a mixture-of-experts (MoE) architecture, featuring 1 trillion total parameters and 32 billion activated parameters for task-specific efficiency. Trained with the Muon optimizer on over 15.5 trillion tokens and stabilized by MuonClip’s attention-logit clamping, it delivers exceptional performance in frontier knowledge, reasoning, mathematics, coding, and general agentic workflows. Moonshot AI provides two variants, Kimi-K2-Base for research-level fine-tuning and Kimi-K2-Instruct pre-trained for immediate chat and tool-driven interactions, enabling both custom development and drop-in agentic capabilities. Benchmarks show it outperforms leading open source peers and rivals top proprietary models in coding tasks and complex task breakdowns, while its 128 K-token context length, tool-calling API compatibility, and support for industry-standard inference engines.

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

This content is ideal for developers, enterprises, and technical teams seeking to build advanced AI agents that require real-time data access, long-context reasoning, and reliable tool-calling capabilities

Audience

AI researchers, developers and organizations seeking an open source, high-performance agentic intelligence model for advanced reasoning, coding and autonomous task execution

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 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 5.0 / 5

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:

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Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

xAI
Founded: 2023
United States
grok.com

Company Information

Moonshot AI
Founded: 2023
China
moonshotai.github.io/Kimi-K2/

Alternatives

Alternatives

Claude Code

Claude Code

Anthropic
Claude Opus 4.5

Claude Opus 4.5

Anthropic
MiniMax-M2.1

MiniMax-M2.1

MiniMax
Kimi K2 Thinking

Kimi K2 Thinking

Moonshot AI
DeepSeek-V2

DeepSeek-V2

DeepSeek

Categories

Categories

Integrations

EaseMate AI
C++
CSS
Clojure
Doraverse
Elixir
Grok Imagine
Java
JavaScript
Laravel
LaunchLemonade
Microsoft Foundry Models
NVIDIA TensorRT
Okara
Python
R
SQL
Scala
SiliconFlow
iMini

Integrations

EaseMate AI
C++
CSS
Clojure
Doraverse
Elixir
Grok Imagine
Java
JavaScript
Laravel
LaunchLemonade
Microsoft Foundry Models
NVIDIA TensorRT
Okara
Python
R
SQL
Scala
SiliconFlow
iMini
Claim Grok 4.1 Fast and update features and information
Claim Grok 4.1 Fast and update features and information
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