Key Features

1 trillion parameters with mixture-of-experts architecture
Muon optimizer for stable large-scale training
Agentic intelligence enabling autonomous multi-step task execution
Supports 256K token context length for extended reasoning
Strong multilingual capabilities focusing on English and Chinese
Native INT4 quantization for 2x inference speed
High performance on software engineering and reasoning benchmarks (e.g., SWE-Bench, AIME, IMO-AnswerBench)

One of Kimi K2's most compelling features is its 'agentic intelligence,' which grants it the ability to act autonomously, not merely responding with conversational text but executing tasks involving tool use. This means that Kimi K2 can plan, reason, and interact with external systems such as databases, web search engines, code compilers, and calculators, making it highly versatile for real-world applications involving automation and task management. Its performance on software engineering benchmarks is particularly notable, demonstrating capabilities akin to a junior developer by breaking down programming requests into discrete subtasks and iteratively refining code to completion. Multilingual prowess also characterizes Kimi K2, with expert-level understanding and generation in both English and Chinese, and a growing vocabulary to support additional languages.


Kimi K2 is especially valued for its deep reasoning ability and long-context understanding, supporting up to 256K tokens in context length, which is vastly superior to many contemporaries. This extended context awareness enables it to maintain coherent and coherent goal-directed behavior across hundreds of sequential function calls, making it ideal for applications requiring sustained logical thought and executing complex workflows. The model is natively quantized for efficiency, doubling inference speed without compromising accuracy, thereby supporting more practical and scalable deployment. Moonshot AI positions Kimi K2 not just as a language model but as the core of intelligent agents designed to autonomously complete projects, manage personal assistants, or engage in creative and technical problem-solving.


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