Kimi K3
moonshotai/Kimi-K3
Open Source · chat · open-weights
Open
Alert me on changes
Intelligence
Context
1M
Max output
—
Weights
Open
API $/1M
$3.00 / $15.00
Modalities
text · image
Released
13 Jun 2026
Intelligence Index via Artificial Analysis · 0–100, higher is better
License: other · moonshotai/Kimi-K3
AI summary
● machine-written
Moonshot AI releases Kimi K3, 2.8T open-weight multimodal model
Kimi K3 is a 2.8-trillion-parameter open-weight model from Moonshot AI with native vision capabilities, a 1-million-token context window, and support for text and image inputs. The model is designed for long-horizon coding, knowledge work, and agentic reasoning tasks. It uses a Mixture-of-Experts architecture with Kimi Delta Attention and activates 16 out of 896 experts per token.
What's new
- Open-weight model released under Kimi K3 License for research and deployment
- 1-million-token context window with flat pricing across full length
- Native multimodal architecture supporting text and images
- Prompt caching reduces input token cost to $0.30 per million (90% discount)
- 2.5× scaling efficiency improvement over predecessor Kimi K2
Best for
Long-horizon software engineering and repository navigationAgentic knowledge work and research with interactive outputsCoding tasks with tool use and iterative debuggingWorkloads with repeated context enabling prompt caching benefits