Kimi K3.1 Pro Pricing
FlagshipMoonshot AI · 1M tokens context
Kimi K3.1 Pro from Moonshot AI costs $2.00 per 1 million input tokens and $10.00 per 1 million output tokens as of October 2026 (live OpenRouter data). The model supports a 1,048,576-token context window (approximately 786,432 words) with a 944K-token maximum output. A typical 1,000-token request costs $0.0020 in input charges; a 10,000-token request costs $0.0200.
| Input price | $2.00 / 1M tokens |
|---|---|
| Output price | $10.00 / 1M tokens |
| Output / input ratio | 5.0× |
| Context window | 1,048,576 tokens (~786,432 words) |
| Maximum output | 943,718 tokens |
| Cost per 1K tokens (input) | $0.0020 |
| Tier | Flagship |
| Last verified |
Kimi K3.1 Pro is Moonshot AI's flagship open-weight multimodal reasoning model and a post-trained successor to Kimi K3, with a 1M-token context window.
Input Price
$2.00
per 1 million tokens
Output Price
$10.00
per 1 million tokens
Context Window
1M tokens
max 944K output
Cost Examples
| Request Type | Tokens | Input Cost | Output Cost |
|---|---|---|---|
| 1,000 word article | 1,333 | $0.00267 | $0.004 |
| 10-page document (2,500 words) | 3,333 | $0.00667 | $0.01 |
| 1,000 lines of code | 5,000 | $0.01 | $0.015 |
| 100K token document | 100,000 | $0.20 | $0.30 |
Output cost estimated at 30% of input token count. Use the calculator for exact figures.
Strengths
- ✓Massive 1M-token context window
- ✓Frontier-class quality on complex tasks
- ✓Multimodal: understands images as well as text
Limitations
- –Quality and availability can vary by hosting provider
- –Quality and availability can vary by hosting provider
Best Use Cases
Calculate Kimi K3.1 Pro Costs
Use the TokenRate calculator to convert any budget, token count, or text into exact Kimi K3.1 Pro costs — and compare across all models.
Open Calculator →Kimi K3.1 Pro — FAQ
Related Models
Related Guides