Moonshot AI, proprietary

# Kimi K3.1 Pro

> Kimi K3.1 Pro by Moonshot AI, released October 2026. Ranked #24 of 368 with a Noometry Index of 57.8. API: $2 in / $10 out per M tokens. 1.05M context. Scores, sources and comparisons.
- Canonical page: https://noometry.com/models/kimi-k3-1-pro
- Last updated: 2026-11-04
- Title: Kimi K3.1 Pro Benchmarks, Price & Rank (November 2026)

Kimi K3.1 Pro by Moonshot AI ranks 24th of 368 ranked models on the Noometry Index as of November 2026, with a score of 57.8. Its strongest category is writing & preference, where it ranks 1st. API pricing starts at $2 per million input tokens and $10 per million output tokens, with a 1.05M-token context window.

Last verified November 4, 2026

## Specifications

- **Noometry rank:** #24 of 368
- **Index score:** 57.8
- **Evidence:** Confirmed 7 results
- **Provider:** [Moonshot AI](https://noometry.com/providers/moonshot)
- **Released:** October 23, 2026
- **Weights:** Proprietary
- **Reasoning:** Yes
- **Context window:** 1.05M
- **Max output:** 1.05M
- **Input price:** $2 / M
- **Output price:** $10 / M
- **Blended price:** $4 / M
- **Output speed:** Not measured
- **Value:** #165 of 217
- **Knowledge cutoff:** Unknown
- **Input:** text, image, video

## Category scores

Each category score combines every public result we have in that category.

Kimi K3.1 Pro category scores

1.  Coding 56.6
2.  Reasoning 57.1
3.  Math 66.1
4.  Writing & Preference 82.4
5.  5060708090

Kimi K3.1 Pro category ranks
| Category | Score | Rank | Results |
| --- | --- | --- | --- |
| [Coding](https://noometry.com/best/coding) | 56.6 | #26 | 2 |
| [Reasoning](https://noometry.com/best/reasoning) | 57.1 | #29 | 2 |
| [Math](https://noometry.com/best/math) | 66.1 | #32 | 1 |
| [Writing & Preference](https://noometry.com/best/writing) | 82.4 | #1 | 1 |

## Strengths and weaknesses

Categories where Kimi K3.1 Pro places highest and lowest among the models ranked in each, with its score against that category's median.

### Strongest categories

Kimi K3.1 Pro: strongest categories
| Category | Score | vs median | Rank |
| --- | --- | --- | --- |
| [Writing & Preference](https://noometry.com/best/writing) | 82.4 | +28.9 | #1 of 317, top 1% |
| [Coding](https://noometry.com/best/coding) | 56.6 | +17.3 | #26 of 346, top 8% |

### Weakest categories

Kimi K3.1 Pro: weakest categories
| Category | Score | vs median | Rank |
| --- | --- | --- | --- |
| [Math](https://noometry.com/best/math) | 66.1 | +27.5 | #32 of 342, top 10% |
| [Reasoning](https://noometry.com/best/reasoning) | 57.1 | +31.0 | #29 of 349, top 9% |

## Closest competitors

The models ranked just above and below Kimi K3.1 Pro. When scores are this close, price and speed are often the better way to choose.

Models ranked closest to Kimi K3.1 Pro
| Model | Rank | Score | Blended $/M | Speed |  |
| --- | --- | --- | --- | --- | --- |
| [GPT-5.6 Terra](https://noometry.com/models/gpt-5-6-terra) | #20 | 59.1 | $4.50 | 11 | [Compare](https://noometry.com/compare/gpt-5-6-terra-vs-kimi-k3-1-pro) |
| [DeepSeek V4.1 Flash](https://noometry.com/models/deepseek-v4-1-flash) | #21 | 58.5 | $0.26 | — | [Compare](https://noometry.com/compare/deepseek-v4-1-flash-vs-kimi-k3-1-pro) |
| [Claude Opus 4.7](https://noometry.com/models/claude-opus-4-7) | #22 | 58.4 | $10 | 33 | [Compare](https://noometry.com/compare/claude-opus-4-7-vs-kimi-k3-1-pro) |
| [Claude Opus 4.6](https://noometry.com/models/claude-opus-4-6) | #23 | 58.2 | $10 | 19 | [Compare](https://noometry.com/compare/claude-opus-4-6-vs-kimi-k3-1-pro) |
| [Muse Wonder](https://noometry.com/models/muse-wonder) | #25 | 57.4 | $8 | — | [Compare](https://noometry.com/compare/kimi-k3-1-pro-vs-muse-wonder) |
| [Qwen3.8 Max](https://noometry.com/models/qwen3-8-max) | #26 | 56.9 | $3 | — | [Compare](https://noometry.com/compare/kimi-k3-1-pro-vs-qwen3-8-max) |
| [Grok 4.6](https://noometry.com/models/grok-4-6) | #27 | 56.8 | $3 | — | [Compare](https://noometry.com/compare/grok-4-6-vs-kimi-k3-1-pro) |
| [Gemini 3.1 Pro Preview](https://noometry.com/models/gemini-3-1-pro-preview) | #28 | 56.6 | $4.50 | — | [Compare](https://noometry.com/compare/gemini-3-1-pro-preview-vs-kimi-k3-1-pro) |

Sponsored placements are available on pages like this one. [Advertise on Noometry](https://noometry.com/advertise)

## Benchmark results

Every published result we track, with its source. Bold rows are the ones used for ranking; where several exist we prefer independent runs over self-reported numbers.

### Coding

Kimi K3.1 Pro Coding benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [LMArena WebDev](https://noometry.com/benchmarks/arena-webdev) | 1695 | #7 of 119, top 6% | Kimi K3.1 Pro (Max) | [LMArena](https://lmarena.ai/leaderboard/webdev) | 2026-10-28 |
| [SciCode](https://noometry.com/benchmarks/scicode) | 60.8% | #8 of 128, top 7% |  | [Epoch AI](https://epoch.ai/benchmarks) |  |
| [ALE-Bench](https://noometry.com/benchmarks/ale-bench) | 1,933 | #13 of 114, top 12% | max | [Epoch AI](https://epoch.ai/benchmarks) |  |

### Reasoning

Kimi K3.1 Pro Reasoning benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [NYT Connections (extended)](https://noometry.com/benchmarks/nyt-connections) | 93.4% | #12 of 94, top 13% | high reasoning | [Lech Mazur benchmarks](https://github.com/lechmazur/nyt-connections) |  |
| [CritPt](https://noometry.com/benchmarks/critpt) | 24.6% | #21 of 154, top 14% |  | [Epoch AI](https://epoch.ai/benchmarks) |  |

### Math

Kimi K3.1 Pro Math benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [ProofBench](https://noometry.com/benchmarks/proofbench) | 91% | #9 of 81, top 12% |  | [Epoch AI](https://epoch.ai/benchmarks) |  |

### Writing & Preference

Kimi K3.1 Pro Writing & Preference benchmark results
| Benchmark | Score | Position | Setting | Source | Date |
| --- | --- | --- | --- | --- | --- |
| [EQ-Bench Creative Writing](https://noometry.com/benchmarks/eqbench-creative-writing) | 2173 | #2 of 118, top 2% |  | [EQ-Bench](https://eqbench.com/creative_writing.html) |  |

## API pricing by provider

Kimi K3.1 Pro API prices
| Route | Input $/M | Output $/M | Cached input $/M | Checked |
| --- | --- | --- | --- | --- |
| [moonshot](https://platform.moonshot.ai/docs/api/chat) | $2 | $10 | $0.20 | 2026-11-04 |
| [openrouter](https://openrouter.ai/moonshotai/kimi-k3.1-pro) | $2 | $10 | $0.20 | 2026-11-04 |

[All Moonshot AI API prices →](https://noometry.com/llm-pricing/moonshot) [Estimate your cost →](https://noometry.com/tools/cost-calculator)

## Compare Kimi K3.1 Pro

-   [Kimi K3.1 Pro vs Claude Opus 4.6](https://noometry.com/compare/claude-opus-4-6-vs-kimi-k3-1-pro)
-   [Kimi K3.1 Pro vs Muse Wonder](https://noometry.com/compare/kimi-k3-1-pro-vs-muse-wonder)
-   [Kimi K3.1 Pro vs Claude Opus 4.7](https://noometry.com/compare/claude-opus-4-7-vs-kimi-k3-1-pro)
-   [Kimi K3.1 Pro vs Qwen3.8 Max](https://noometry.com/compare/kimi-k3-1-pro-vs-qwen3-8-max)
-   [Kimi K3.1 Pro vs DeepSeek V4.1 Flash](https://noometry.com/compare/deepseek-v4-1-flash-vs-kimi-k3-1-pro)
-   [Kimi K3.1 Pro vs Grok 4.6](https://noometry.com/compare/grok-4-6-vs-kimi-k3-1-pro)
-   [Kimi K3.1 Pro vs GPT-6 Astra](https://noometry.com/compare/gpt-6-astra-vs-kimi-k3-1-pro)
-   [Kimi K3.1 Pro vs Claude Opus 5.5](https://noometry.com/compare/claude-opus-5-5-vs-kimi-k3-1-pro)
-   [Kimi K3.1 Pro vs Gemini 4 Argon](https://noometry.com/compare/gemini-4-argon-vs-kimi-k3-1-pro)
-   [Kimi K3.1 Pro vs Doubao Seed Evolving](https://noometry.com/compare/doubao-seed-evolving-vs-kimi-k3-1-pro)
-   [Kimi K3.1 Pro vs GLM-5.3](https://noometry.com/compare/glm-5-3-vs-kimi-k3-1-pro)

## Other Moonshot AI models

-   [Kimi K3](https://noometry.com/models/kimi-k3)59.4
-   [Kimi K2.5](https://noometry.com/models/kimi-k2-5)48.5
-   [Kimi K2.6](https://noometry.com/models/kimi-k2-6)47.6
-   [Kimi K2 Thinking Turbo](https://noometry.com/models/kimi-k2-thinking-turbo)45.9
-   [Kimi K2.7 Code](https://noometry.com/models/kimi-k2-7-code)43.0
-   [Kimi K2 (Jul 2025)](https://noometry.com/models/kimi-k2)41.9
-   [Kimi K2.7 Code HighSpeed](https://noometry.com/models/kimi-k2-7-code-highspeed)
-   [Kimi K3.1 Pro Highspeed](https://noometry.com/models/kimi-k3-1-pro-highspeed)

## Frequently asked questions

### How good is Kimi K3.1 Pro?

Kimi K3.1 Pro by Moonshot AI ranks 24th of 368 ranked models on the Noometry Index as of November 2026, with a score of 57.8. Its strongest category is writing & preference, where it ranks 1st. API pricing starts at $2 per million input tokens and $10 per million output tokens, with a 1.05M-token context window.

### How much does Kimi K3.1 Pro cost?

Kimi K3.1 Pro costs $2 per million input tokens and $10 per million output tokens on Moonshot AI's own API, with cached input at $0.20.

### What is Kimi K3.1 Pro's context window?

Kimi K3.1 Pro accepts up to 1.05M tokens of input and can write up to 1.05M tokens in one response.

### Is Kimi K3.1 Pro open source?

No. Kimi K3.1 Pro is proprietary and available only through Moonshot AI's API and partner platforms.

### What are Kimi K3.1 Pro's strengths and weaknesses?

Relative to other ranked models, Kimi K3.1 Pro places best in writing & preference, coding and lowest in math, reasoning.

### What is Kimi K3.1 Pro best at?

Its best category is writing & preference, where it ranks 1st on Noometry.

### Cite this page

Noometry. (2026). Kimi K3.1 Pro benchmarks and pricing. Retrieved November 4, 2026, from https://noometry.com/models/kimi-k3-1-pro

Quote Noometry with a link back to this page. It is also available in [Markdown](https://noometry.com/md/models/kimi-k3-1-pro.md).