Kimi K2
LegacyStandardMoonshotAI's large MoE model — 1T total parameters, 32B active.
Optimized for agentic tasks with strong tool use and long-context reasoning. Superseded by K2.5.
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Kimi K2 by MoonshotAI has a Capability Index of 78.2, making it comparable to the field average. It ranks #32 out of 92 models on the idapt capability leaderboard. Kimi K2 is somewhat expensive at $0.57/M tokens input and $2.30/M tokens output. The model supports a 131K context window.
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Mistral Small 4vs Kimi K2Frequently Asked Questions about Kimi K2▼
When was Kimi K2 released?
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Kimi K2 was released on July 11, 2025.
Who created Kimi K2?
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Kimi K2 was created by MoonshotAI.
How capable is Kimi K2?
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Kimi K2 has a Capability Index of 78.2/100, making it comparable to the field average. It ranks #32 out of 92 models.
How much does Kimi K2 cost?
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Kimi K2 costs $0.57/M input tokens and $2.30/M output tokens.
What is Kimi K2 API pricing?
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The Kimi K2 API is priced at $0.57 per million input tokens and $2.30 per million output tokens. You can access Kimi K2 through idapt.app alongside 200+ other AI models in one workspace.
Is Kimi K2 a reasoning model?
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No, Kimi K2 is not a reasoning model. It responds directly without an extended internal thinking step. For tasks requiring deep chain-of-thought reasoning, consider models like Claude, o-series from OpenAI, or Gemini Thinking.
Does Kimi K2 support image or vision input?
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No, Kimi K2 does not currently support image or vision input. It is a text-only model.
Does Kimi K2 support audio?
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No, Kimi K2 does not support audio input.
What is the context window of Kimi K2?
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Kimi K2 has a context window of 131K tokens, meaning it can process approximately 98,304 words of context at once.
Is Kimi K2 open source?
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Kimi K2 is a proprietary model developed by MoonshotAI. The model weights and training data are not publicly available.
Where can I use Kimi K2?
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You can chat with Kimi K2 on idapt.app — no separate API key required. idapt is an AI workspace with 200+ models, agents, computers, and tasks. You can also access Kimi K2 through MoonshotAI's own API or platform.