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Gemini 4 Carbon vs Kimi K3.1 Pro

Gemini 4 Carbon leads the LLM Stats Score 59.0 to 55.5.

Google · Moonshot AI · Updated for 2026

Which is better?

Gemini 4 Carbon leads the overall LLM Stats Score 59.0 to 55.5, ranking #2 overall.

In the 2 individual benchmarks reported for both models, Gemini 4 Carbon wins 2; 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 Gemini 4 Carbon

  • overall performance matters — it scores 59.0 and ranks #2 on LLM Stats
  • your work emphasizes coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 2 of 2 exact shared results
  • you want the most recent training data — it shipped Oct 2026

Choose Kimi K3.1 Pro

  • you want predictable pricing at $2.00/M input and $10.00/M output

At a glance

The differences that matter most.

Gemini 4 Carbon
Google
Kimi K3.1 Pro
Moonshot AI
Core performance indexes
LLM Stats Score
59.0
#2
55.5
#5
Reasoning
54.9
#5
54.3
#6
Coding
48.1
#3
42.7
#9
Agents
46.0
#2
41.6
#5
Cost, coverage & limits
Benchmark wins
2 of 2
0 of 2
Input price
— / M
$2.00 / M
Output price
— / M
$10.00 / M
Context window
—
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

4 shared
Index
Gemini 4 Carbon
Kimi K3.1 Pro
Vision
36.0#12
40.5#4
Tool use
35.8#3
30.4#14
Multimodal
38.0#6
40.8#2
Safety
33.0#1
24.5#5
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

16 reported for Gemini 4 Carbon · 30 for Kimi K3.1 Pro

2 shared

Gemini 4 Carbon outperforms in 2 benchmarks (ExploitGym, Terminal-Bench-Science 0.1), while Kimi K3.1 Pro is better at 0 benchmarks.

Gemini 4 Carbon significantly outperforms across most benchmarks.

Thu Oct 29 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).

Google
Gemini 4 Carbon
Input- tokens
Output- tokens
Moonshot AI
Kimi K3.1 Pro
Input1,048,576 tokens
Output1,048,576 tokens
Thu Oct 29 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Gemini 4 Carbon and Kimi K3.1 Pro support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Gemini 4 Carbon

Text
Images
Audio
Video

Kimi K3.1 Pro

Text
Images
Audio
Video

Release Timeline

When each model was launched

Gemini 4 Carbon was released on 2026-10-28, while Kimi K3.1 Pro was released on 2026-10-23.

Gemini 4 Carbon is 0 month newer than Kimi K3.1 Pro.

Gemini 4 Carbon

Oct 28, 2026

-2 days ago

5d newer
Kimi K3.1 Pro

Oct 23, 2026

3 days 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 Gemini 4 Carbon and Kimi K3.1 Pro side-by-side, then vote on the output you prefer.

Gemini 4 Carbon
✓ Preferred
Kimi K3.1 Pro
Open in Playground

FAQ

Common questions about Gemini 4 Carbon vs Kimi K3.1 Pro.

Which is better, Gemini 4 Carbon or Kimi K3.1 Pro?

Gemini 4 Carbon leads the LLM Stats Score 59.0 to 55.5. Gemini 4 Carbon is made by Google and Kimi K3.1 Pro is made by Moonshot AI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Gemini 4 Carbon compare to Kimi K3.1 Pro in benchmarks?

Gemini 4 Carbon scores Gray Swan IPI Benchmark: 100.0%, Vending-Bench 2: 100.0%, Graphwalks BFS >128k: 96.2%, WebDev Arena: 88.4%, SEC-bench Pro: 88.2%. Kimi K3.1 Pro scores BabyVision: 95.4%, GPQA: 94.2%, BenchCAD (with Python tool): 92.7%, BrowseComp: 92.1%, Chartography: 90.2%.

What are the context window sizes for Gemini 4 Carbon and Kimi K3.1 Pro?

Gemini 4 Carbon supports an unknown number of tokens and Kimi K3.1 Pro supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini 4 Carbon and Kimi K3.1 Pro?

Key differences include LLM Stats Score (59.0 vs 55.5), licensing (Proprietary vs Unknown). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 4 Carbon and Kimi K3.1 Pro?

Gemini 4 Carbon is developed by Google and Kimi K3.1 Pro is developed by Moonshot AI.

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