Model overview
Kimi-K3.1-Pro is Moonshot’s flagship domestically developed multimodal large model, supporting an ultra-long context of up to one million tokens. It can process text, images, and lengthy documents, and boasts powerful reasoning, coding, and tool‑calling capabilities, making it ideal for in-depth analysis, complex agent tasks, and the interpretation of charts and blueprints.
The summary below is compiled from sources by an AI model, not our own testing. Verify selection decisions against original sources and your workload.
Key features
- Supports ultra-long context processing of up to one million tokens
- Multimodal input capability, capable of parsing both text and images.
- Possesses strong reasoning, code generation, and tool invocation capabilities.
Limitations & considerations
Sources are insufficient to establish specific limitations. Verify task performance, latency, data policies, licensing and version lifecycle.
Source prices & cost analysis
Prices vary by channel, region and configuration. Channel quotes are listed independently and are not treated as a single official provider price.
| Source / channel | Input | Output | Billing unit | Collected at |
|---|---|---|---|---|
| OpenRouter · moonshotai/kimi-k3.1-pro ↗ | USD 2 | USD 10 | Per million tokens | 2026/10/30 11:21:49 |
| Apilio · default ↗ | Not verified | Not verified | 渠道倍率待核验 | 2026/10/30 11:21:42 |
| Apilio · 国产特价 ↗ | Not verified | Not verified | 渠道倍率待核验 | 2026/10/30 11:21:42 |
| Artificial Analysis · Kimi K3.1 Pro ↗ | USD 2 | USD 10 | Per million tokens | 2026/10/30 11:54:08 |
Some channels offer cache discounts. Check the source for cache read, write and additional fees.
Estimate monthly base token costs
Estimates exclude cache discounts, tiered pricing, multimodal surcharges, web search, taxes and additional reasoning output.
Public benchmarks & run configuration
Frequently asked questions
Does Kimi K3.1 Pro support image input?
Yes, it supports the image input type.
What is the maximum context length of this model?
The maximum context length is 1,000,000 tokens.
Is it suitable for complex agent scenarios?
Yes, the documentation explicitly states that it is suitable for in-depth study, complex agent tasks, and the analysis of charts and drawings.
Do open weights permit free commercial use?
Not necessarily. Check the version license, commercial conditions and usage policies. Self-hosting incurs compute and maintenance costs.
Are these real-time billing prices?
These are timestamped source snapshots, not live billing prices. Check the channel for current versions, regions, discounts and billing methods.
Sources & traceability
许可证：来源未披露，须进一步核验。模型介绍与第三方评测均以原来源的具体版本和方法为准。