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Kimi K3.1 Pro vs MAI-Thinking-1

Kimi K3.1 Pro leads the LLM Stats Score 55.5 to 32.4.

Moonshot AI · Microsoft · Updated for 2026

Which is better?

Kimi K3.1 Pro leads the overall LLM Stats Score 55.5 to 32.4, ranking #5 overall.

In the 1 individual benchmarks reported for both models, Kimi K3.1 Pro wins 1; this is a narrower head-to-head signal than the composite indexes.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Kimi K3.1 Pro

  • overall performance matters — it scores 55.5 and ranks #5 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • you want the most recent training data — it shipped Oct 2026

Choose MAI-Thinking-1

  • you are already invested in the Microsoft ecosystem

At a glance

The differences that matter most.

Kimi K3.1 Pro
Moonshot AI
MAI-Thinking-1
Microsoft
Core performance indexes
LLM Stats Score
55.5
#5
32.4
#130
Reasoning
54.3
#6
33.2
#119
Coding
42.7
#9
19.3
#128
Agents
41.6
#5
12.8
#125
Cost, coverage & limits
Benchmark wins
1 of 1
0 of 1
Input price
$2.00 / M
— / M
Output price
$10.00 / M
— / M
Context window
1,048,576
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Kimi K3.1 Pro
MAI-Thinking-1
Math
38.6#26
33.6#58
Tool use
30.4#14
10.6#146
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

30 reported for Kimi K3.1 Pro · 23 for MAI-Thinking-1

1 shared

Kimi K3.1 Pro outperforms in 1 benchmarks (GPQA), while MAI-Thinking-1 is better at 0 benchmarks.

Kimi K3.1 Pro significantly outperforms across most benchmarks.

Sat Oct 31 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Kimi K3.1 Pro specifies input context (1,048,576 tokens). Only Kimi K3.1 Pro specifies output context (1,048,576 tokens).

Moonshot AI
Kimi K3.1 Pro
Input1,048,576 tokens
Output1,048,576 tokens
Microsoft
MAI-Thinking-1
Input- tokens
Output- tokens
Sat Oct 31 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Kimi K3.1 Pro supports multimodal inputs, whereas MAI-Thinking-1 does not.

Kimi K3.1 Pro can handle both text and other forms of data like images, making it suitable for multimodal applications.

Kimi K3.1 Pro

Text
Images
Audio
Video

MAI-Thinking-1

Text
Images
Audio
Video

Release Timeline

When each model was launched

Kimi K3.1 Pro was released on 2026-10-23, while MAI-Thinking-1 was released on 2026-06-02.

Kimi K3.1 Pro is 5 months newer than MAI-Thinking-1.

Kimi K3.1 Pro

Oct 23, 2026

1 weeks ago

4mo newer
MAI-Thinking-1

Jun 2, 2026

5 months ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Kimi K3.1 Pro and MAI-Thinking-1 side-by-side, then vote on the output you prefer.

Kimi K3.1 Pro
✓ Preferred
MAI-Thinking-1
Open in Playground

FAQ

Common questions about Kimi K3.1 Pro vs MAI-Thinking-1.

Which is better, Kimi K3.1 Pro or MAI-Thinking-1?

Kimi K3.1 Pro leads the LLM Stats Score 55.5 to 32.4. Kimi K3.1 Pro is made by Moonshot AI and MAI-Thinking-1 is made by Microsoft. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Kimi K3.1 Pro compare to MAI-Thinking-1 in benchmarks?

Kimi K3.1 Pro scores BabyVision: 95.4%, GPQA: 94.2%, BenchCAD (with Python tool): 92.7%, BrowseComp: 92.1%, Chartography: 90.2%. MAI-Thinking-1 scores LongFact: 98.0%, AIME 2025: 97.0%, AIME 2026: 94.5%, GraphWalks: 90.0%, AIR-Bench: 88.0%.

What are the context window sizes for Kimi K3.1 Pro and MAI-Thinking-1?

Kimi K3.1 Pro supports 1.0M tokens and MAI-Thinking-1 supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Kimi K3.1 Pro and MAI-Thinking-1?

Key differences include LLM Stats Score (55.5 vs 32.4), multimodal support (yes vs no), licensing (Unknown vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Kimi K3.1 Pro and MAI-Thinking-1?

Kimi K3.1 Pro is developed by Moonshot AI and MAI-Thinking-1 is developed by Microsoft.

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