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Kimi K2
Developed by Moonshot AI
Modality: Multimodal
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Context: 128k
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Open Source
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Overview
Kimi K2 is a state-of-the-art open-source Mixture-of-Experts language model by Moonshot AI, launched July 2025. It features 1 trillion total parameters with 32 billion activated per token, a 128K context window, and native Model Context Protocol (MCP) support for agentic workflows. It excels at long-context reasoning, code generation, and agentic behavior. The K2 Thinking variant adds extended chain-of-thought reasoning for complex multi-step tasks. Succeeded by K2.5 in January 2026.
Model Specifications
Provider:
Moonshot AI
Modality / Type:
Multimodal
Pricing Model:
Open Source
Context Window:
128k
Release Date:
Jul 11, 2025
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