Kimi K3
moonshotai/Kimi-K3
Open Source · chat · open-weights
Unavailable
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Announced — weights not published yet.
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Intelligence
Context
1M
Max output
—
Input $/1M
$3.00
Output $/1M
$15.00
Modalities
text · image
Released
16 Jul 2026
Intelligence Index via Artificial Analysis · 0–100, higher is better
AI summary
● machine-written
Moonshot AI releases Kimi K3, 2.8T-parameter open-weight model
Kimi K3 is a 2.8 trillion-parameter open-weight multimodal model from Moonshot AI featuring a 1M-token context window and native vision capabilities. The model is designed for long-horizon coding, knowledge work, and reasoning tasks, with always-on reasoning as a default feature. It demonstrates frontier-level performance across evaluations, though it trails the most powerful proprietary models like Claude Fable 5 and GPT 5.6 Sol.
What's new
- 2.8T-parameter model using Kimi Delta Attention and Attention Residuals architecture
- 1M-token context window with flat pricing across full context length
- Native vision capabilities for multimodal reasoning
- Always-on maximum thinking effort mode by default
- Full model weights to be released by July 27, 2026
Best for
Long-horizon coding and software engineering tasksKnowledge work requiring sustained reasoningGPU kernel optimization and compiler developmentGame development and visual reasoning tasks