Kimi K3.1 Pro
moonshotai/Kimi-K3.1-Pro
Open Source · chat · open-weights
Open
Alert me on changes
Intelligence
Context
1M
Max output
—
Weights
Open
API $/1M
$2.00 / $10.00
Modalities
text · image
Released
02 Nov 2026
Intelligence Index via Artificial Analysis · 0–100, higher is better
License: other · moonshotai/Kimi-K3.1-Pro
AI summary
● machine-written
Moonshot AI releases Kimi K3.1 Pro, open-weight model with 1M context
Kimi K3.1 Pro is an open-weight multimodal model from Moonshot AI with 2.8 trillion total parameters and 104 billion active parameters per token. It supports text and image inputs with a 1-million-token context window. The model is positioned for coding, financial research, 3D creation, and agentic workflows, priced at $2 per million input tokens and $10 per million output tokens—one-third less than its predecessor Kimi K3.
What's new
- Released October 23, 2026 on Kimi API, Kimi.com, Kimi Work, and Kimi Code
- Open weights promised by November 4, 2026
- Pricing reduced to $2/$10 per million tokens (33% lower than Kimi K3)
- Post-trained from Kimi K3 with large-scale reinforcement learning across hundreds of downstream domains
- Kimi K3.1 Pro Highspeed variant available at $4/$20 per million tokens
Best for
Code generation and software developmentFinancial research and analysisLong-context document analysisAgent workflows and agentic tasks