Kimi K3
Kimi K3 is an open-weight, multimodal chat model developed by Moonshot AI. It is a 2.8T-parameter Mixture-of-Experts model built on a novel Kimi Delta Attention and Attention Residuals architecture, with a 1,048,576-token context window. The model is designed for long-horizon tasks such as coding, knowledge work, and reasoning, and features native vision capabilities for processing text and images.
Input
Output
Context
1049K
Max Output
-
Parameters
2779.9B
Technical Specifications
Model TypeChat
Context Window1,048,576 tokens
Max Output TokensNot available
Parameters2779.9B
Release DateJun 13, 2026
Training CutoffNot available
Licenseother
Open SourceYes
Input Modalities
TextImage
Output Modalities
Text
Capabilities
Benchmarks
Artificial Analysis
46.9%
HLE
82.7%
AA-LCR
93.5%
GPQA
58.7%
SciCode
46.0%
Tau2 Banking
76.2
Coding
59.7
Intelligence
85.0%
Terminal-Bench 2.1
37.9
Speed (tok/s)
58.2
TTFA (s)
5.5
TTFT (s)
More Models by Moonshot AI
Kimi Linear 48B A3B Base1000K context · 49.1B · Open weightsKimi K2.6262K context · 1026.9B · Open weightsMoonlight 16B A3B Instruct8K context · 16B · Open weightsKimi K2 Instruct131K context · 1026.4B · Open weightsKimi K2.7 Code262K context · 1026.9B · Open weightsKimi K2 Thinking262K context · 1026.4B · Open weights
Related Tools
Data sourced from official provider APIs and documentation
Last updated: Aug 28, 2026
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