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Gemini 4 Carbon vs Gemma 4 31B

Gemini 4 Carbon leads the LLM Stats Score 59.0 to 32.5.

Google · Google · Updated for 2026

Which is better?

Gemini 4 Carbon leads the overall LLM Stats Score 59.0 to 32.5, 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 and agents — it leads those capability indexes
  • you want the most recent training data — it shipped Oct 2026

Choose Gemma 4 31B

  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

Gemini 4 Carbon
Google
Gemma 4 31B
Google
Core performance indexes
LLM Stats Score
59.0
#2
32.5
#129
Reasoning
54.9
#5
33.0
#121
Agents
46.0
#2
13.3
#122
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
$0.09 / M
Output price
— / M
$0.34 / M
Context window
—
262,144

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Gemini 4 Carbon
Gemma 4 31B
Vision
36.0#12
19.6#94
Multimodal
38.0#6
22.1#77
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

16 reported for Gemini 4 Carbon · 12 for Gemma 4 31B

No common benchmarks found

Gemini 4 Carbon and Gemma 4 31Bdon'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

Context Window

Maximum input and output token capacity

Only Gemma 4 31B specifies input context (262,144 tokens). Only Gemma 4 31B specifies output context (262,144 tokens).

Google
Gemini 4 Carbon
Input- tokens
Output- tokens
Google
Gemma 4 31B
Input262,144 tokens
Output262,144 tokens
Fri Oct 30 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Gemini 4 Carbon and Gemma 4 31B support multimodal inputs.

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

Gemini 4 Carbon

Text
Images
Audio
Video

Gemma 4 31B

Text
Images
Audio
Video

License

Usage and distribution terms

Gemini 4 Carbon is licensed under a proprietary license, while Gemma 4 31B uses Apache 2.0.

License differences may affect how you can use these models in commercial or open-source projects.

Gemini 4 Carbon

Proprietary

Closed source

Gemma 4 31B

Apache 2.0

Open weights

Release Timeline

When each model was launched

Gemini 4 Carbon was released on 2026-10-28, while Gemma 4 31B was released on 2026-04-02.

Gemini 4 Carbon is 7 months newer than Gemma 4 31B.

Gemini 4 Carbon

Oct 28, 2026

2 days ago

6mo newer
Gemma 4 31B

Apr 2, 2026

7 months ago

Knowledge Cutoff

When training data ends

Gemma 4 31B has a documented knowledge cutoff of 2025-01-01, while Gemini 4 Carbon's cutoff date is not specified.

We can confirm Gemma 4 31B's training data extends to 2025-01-01, but cannot make a direct comparison without Gemini 4 Carbon's cutoff date.

Gemini 4 Carbon

—

Gemma 4 31B

Jan 2025

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Gemini 4 Carbon and Gemma 4 31B side-by-side, then vote on the output you prefer.

Gemini 4 Carbon
✓ Preferred
Gemma 4 31B
Open in Playground

FAQ

Common questions about Gemini 4 Carbon vs Gemma 4 31B.

Which is better, Gemini 4 Carbon or Gemma 4 31B?

Gemini 4 Carbon leads the LLM Stats Score 59.0 to 32.5. Gemini 4 Carbon is made by Google and Gemma 4 31B is made by Google. 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 Gemma 4 31B 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%. Gemma 4 31B scores AIME 2026: 89.2%, MMMLU: 88.4%, t2-bench: 86.4%, MathVision: 85.6%, MMLU-Pro: 85.2%.

What are the context window sizes for Gemini 4 Carbon and Gemma 4 31B?

Gemini 4 Carbon supports an unknown number of tokens and Gemma 4 31B supports 262K 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 Gemma 4 31B?

Key differences include LLM Stats Score (59.0 vs 32.5), licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

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