Kimi K2 (0905)
StandardSeptember 2025 checkpoint of Kimi K2 with improved capabilities.
Updated version of the Kimi K2 MoE model with refined instruction following.
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Kimi K2 (0905) is somewhat expensive at $0.60/M tokens input and $2.50/M tokens output. The model supports a 262K context window.
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Nemotron 3 Ultravs Kimi K2 (0905)Frequently Asked Questions about Kimi K2 (0905)▼
When was Kimi K2 (0905) released?
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Kimi K2 (0905) was released on September 4, 2025.
Who created Kimi K2 (0905)?
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Kimi K2 (0905) was created by MoonshotAI.
How much does Kimi K2 (0905) cost?
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Kimi K2 (0905) costs $0.60/M input tokens and $2.50/M output tokens.
What is Kimi K2 (0905) API pricing?
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The Kimi K2 (0905) API is priced at $0.60 per million input tokens and $2.50 per million output tokens. You can access Kimi K2 (0905) through idapt.app alongside 200+ other AI models in one workspace.
Is Kimi K2 (0905) a reasoning model?
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No, Kimi K2 (0905) 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 (0905) support image or vision input?
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No, Kimi K2 (0905) does not currently support image or vision input. It is a text-only model.
Does Kimi K2 (0905) support audio?
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No, Kimi K2 (0905) does not support audio input.
What is the context window of Kimi K2 (0905)?
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Kimi K2 (0905) has a context window of 262K tokens, meaning it can process approximately 196,608 words of context at once.
Is Kimi K2 (0905) open source?
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Kimi K2 (0905) is a proprietary model developed by MoonshotAI. The model weights and training data are not publicly available.
Where can I use Kimi K2 (0905)?
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You can chat with Kimi K2 (0905) 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 (0905) through MoonshotAI's own API or platform.