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Gemini 4 Carbon vs Kimi-k1.5

Gemini 4 Carbon leads the LLM Stats Score 59.0 to 16.7.

Google · Moonshot AI · Updated for 2026

Which is better?

Gemini 4 Carbon leads the overall LLM Stats Score 59.0 to 16.7, ranking #2 overall.

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 reasoning — it leads those capability indexes
  • you want the most recent training data — it shipped Oct 2026

Choose Kimi-k1.5

  • you are already invested in the Moonshot AI ecosystem

At a glance

The differences that matter most.

Gemini 4 Carbon
Google
Kimi-k1.5
Moonshot AI
Core performance indexes
LLM Stats Score
59.0
#2
16.7
#254
Reasoning
54.9
#5
15.9
#251
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
— / M
Output price
— / M
— / M
Context window
—
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Gemini 4 Carbon
Kimi-k1.5
Vision
36.0#12
10.9#135
Multimodal
38.0#6
14.5#113
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

16 reported for Gemini 4 Carbon · 9 for Kimi-k1.5

No common benchmarks found

Gemini 4 Carbon and Kimi-k1.5don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Input capabilities

Documented input modalities across available providers

Both Gemini 4 Carbon and Kimi-k1.5 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-k1.5

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Gemini 4 Carbon

Proprietary

Closed source

Kimi-k1.5

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 4 Carbon was released on 2026-10-28, while Kimi-k1.5 was released on 2025-01-20.

Gemini 4 Carbon is 22 months newer than Kimi-k1.5.

Gemini 4 Carbon

Oct 28, 2026

-1 days ago

1.8yr newer
Kimi-k1.5

Jan 20, 2025

1.8 years 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-k1.5 side-by-side, then vote on the output you prefer.

Gemini 4 Carbon
✓ Preferred
Kimi-k1.5
Open in Playground

FAQ

Common questions about Gemini 4 Carbon vs Kimi-k1.5.

Which is better, Gemini 4 Carbon or Kimi-k1.5?

Gemini 4 Carbon leads the LLM Stats Score 59.0 to 16.7. Gemini 4 Carbon is made by Google and Kimi-k1.5 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-k1.5 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-k1.5 scores MATH-500: 96.2%, CLUEWSC: 91.4%, C-Eval: 88.3%, MMLU: 87.4%, IFEval: 87.2%.

What are the main differences between Gemini 4 Carbon and Kimi-k1.5?

Key differences include LLM Stats Score (59.0 vs 16.7). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 4 Carbon and Kimi-k1.5?

Gemini 4 Carbon is developed by Google and Kimi-k1.5 is developed by Moonshot AI.

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