The AI arena is free today

Open Superagent

Gemini 3.1 Pro vs Gemma 4 E2B

Gemini 3.1 Pro leads the LLM Stats Score 43.3 to 6.7.

Google · Google · Updated for 2026

Which is better?

Gemini 3.1 Pro leads the overall LLM Stats Score 43.3 to 6.7, ranking #42 overall.

In the 5 individual benchmarks reported for both models, Gemini 3.1 Pro wins 5; 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 3.1 Pro

  • overall performance matters — it scores 43.3 and ranks #42 on LLM Stats
  • your work emphasizes reasoning and agents — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 5 of 5 exact shared results

Choose Gemma 4 E2B

  • you want the most recent training data — it shipped Apr 2026
  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

Gemini 3.1 Pro
Google
Gemma 4 E2B
Google
Core performance indexes
LLM Stats Score
43.3
#42
6.7
#294
Reasoning
45.0
#31
5.6
#295
Agents
24.4
#54
-3.6
#182
Cost, coverage & limits
Benchmark wins
5 of 5
0 of 5
Input price
$2.00 / M
— / M
Output price
$12.00 / M
— / M
Context window
1,000,000
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Gemini 3.1 Pro
Gemma 4 E2B
Math
42.4#5
5.7#270
Vision
31.0#27
0.7#179
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

20 reported for Gemini 3.1 Pro · 11 for Gemma 4 E2B

5 shared

Gemini 3.1 Pro outperforms in 5 benchmarks (GPQA, MMMLU, MMMU-Pro, MRCR v2 (8-needle), t2-bench), while Gemma 4 E2B is better at 0 benchmarks.

Gemini 3.1 Pro significantly outperforms across most benchmarks.

Tue Sep 22 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Gemini 3.1 Pro specifies input context (1,000,000 tokens). Only Gemini 3.1 Pro specifies output context (1,000,000 tokens).

Google
Gemini 3.1 Pro
Input1,000,000 tokens
Output1,000,000 tokens
Google
Gemma 4 E2B
Input- tokens
Output- tokens
Tue Sep 22 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Gemini 3.1 Pro and Gemma 4 E2B support multimodal inputs.

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

Gemini 3.1 Pro

Text
Images
Audio
Video

Gemma 4 E2B

Text
Images
Audio
Video

License

Usage and distribution terms

Gemini 3.1 Pro is licensed under a proprietary license, while Gemma 4 E2B uses Apache 2.0.

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

Gemini 3.1 Pro

Proprietary

Closed source

Gemma 4 E2B

Apache 2.0

Open weights

Release Timeline

When each model was launched

Gemini 3.1 Pro was released on 2026-02-19, while Gemma 4 E2B was released on 2026-04-02.

Gemma 4 E2B is 1 month newer than Gemini 3.1 Pro.

Gemini 3.1 Pro

Feb 19, 2026

7 months ago

Gemma 4 E2B

Apr 2, 2026

5 months ago

1mo newer

Knowledge Cutoff

When training data ends

Gemini 3.1 Pro has a knowledge cutoff of 2025-01-31, while Gemma 4 E2B has a cutoff of 2025-01-01.

Gemini 3.1 Pro has more recent training data (up to 2025-01-31), making it potentially better informed about events through that date compared to Gemma 4 E2B (2025-01-01).

Gemini 3.1 Pro

Jan 2025

Gemma 4 E2B

Jan 2025

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Gemini 3.1 Pro and Gemma 4 E2B side-by-side, then vote on the output you prefer.

Gemini 3.1 Pro
✓ Preferred
Gemma 4 E2B
Open in Playground

FAQ

Common questions about Gemini 3.1 Pro vs Gemma 4 E2B.

Which is better, Gemini 3.1 Pro or Gemma 4 E2B?

Gemini 3.1 Pro leads the LLM Stats Score 43.3 to 6.7. Gemini 3.1 Pro is made by Google and Gemma 4 E2B 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 3.1 Pro compare to Gemma 4 E2B in benchmarks?

Gemini 3.1 Pro scores t2-bench: 99.3%, LiveCodeBench Pro: 96.2%, GPQA: 94.3%, MMMLU: 92.6%, BrowseComp: 85.9%. Gemma 4 E2B scores MMMLU: 67.4%, MMLU-Pro: 60.0%, MathVision: 52.4%, MMMU-Pro: 44.2%, LiveCodeBench v6: 44.0%.

What are the context window sizes for Gemini 3.1 Pro and Gemma 4 E2B?

Gemini 3.1 Pro supports 1.0M tokens and Gemma 4 E2B 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 Gemini 3.1 Pro and Gemma 4 E2B?

Key differences include LLM Stats Score (43.3 vs 6.7), licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Related comparisons