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Gemini Diffusion vs Gemma 3 12B

Gemini Diffusion and Gemma 3 12B are closely matched at 0.9 and 5.6 on the LLM Stats Score.

Google · Google · Updated for 2026

Which is better?

Gemini Diffusion and Gemma 3 12B are closely matched on the overall LLM Stats Score at 0.9 and 5.6.

The models split the 6 individual benchmarks reported for both models evenly.

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

Choose Gemini Diffusion

  • you want the most recent training data — it shipped May 2025

Choose Gemma 3 12B

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

At a glance

The differences that matter most.

Gemini Diffusion
Google
Gemma 3 12B
Google
Core performance indexes
LLM Stats Score
0.9
#322
5.6
#294
Reasoning
0.9
#314
5.9
#288
Coding
2.8
#220
2.8
#221
Cost, coverage & limits
Benchmark wins
3 of 6
3 of 6
Input price
— / M
$0.05 / M
Output price
— / M
$0.15 / M
Context window
—
131,072

Individual benchmarks

10 reported for Gemini Diffusion · 26 for Gemma 3 12B

6 shared

Gemini Diffusion outperforms in 3 benchmarks (HumanEval, LiveCodeBench, MBPP), while Gemma 3 12B is better at 3 benchmarks (BIG-Bench Extra Hard, Global-MMLU-Lite, GPQA).

Both models are evenly matched across the benchmarks.

Sun Sep 13 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Gemma 3 12B specifies input context (131,072 tokens). Only Gemma 3 12B specifies output context (131,072 tokens).

Google
Gemini Diffusion
Input- tokens
Output- tokens
Google
Gemma 3 12B
Input131,072 tokens
Output131,072 tokens
Sun Sep 13 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Gemma 3 12B supports multimodal inputs, whereas Gemini Diffusion does not.

Gemma 3 12B can handle both text and other forms of data like images, making it suitable for multimodal applications.

Gemini Diffusion

Text
Images
Audio
Video

Gemma 3 12B

Text
Images
Audio
Video

License

Usage and distribution terms

Gemini Diffusion is licensed under a proprietary license, while Gemma 3 12B uses Gemma.

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

Gemini Diffusion

Proprietary

Closed source

Gemma 3 12B

Gemma

Open weights

Release Timeline

When each model was launched

Gemini Diffusion was released on 2025-05-20, while Gemma 3 12B was released on 2025-03-12.

Gemini Diffusion is 2 months newer than Gemma 3 12B.

Gemini Diffusion

May 20, 2025

1.3 years ago

2mo newer
Gemma 3 12B

Mar 12, 2025

1.5 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?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Gemini Diffusion and Gemma 3 12B side-by-side, then vote on the output you prefer.

Gemini Diffusion
✓ Preferred
Gemma 3 12B
Open in Playground

FAQ

Common questions about Gemini Diffusion vs Gemma 3 12B.

Which is better, Gemini Diffusion or Gemma 3 12B?

Gemini Diffusion and Gemma 3 12B are closely matched on the LLM Stats Score at 0.9 and 5.6. Gemini Diffusion is made by Google and Gemma 3 12B 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 Diffusion compare to Gemma 3 12B in benchmarks?

Gemini Diffusion scores HumanEval: 89.6%, MBPP: 76.0%, Global-MMLU-Lite: 69.1%, LBPP (v2): 56.8%, BigCodeBench: 45.4%. Gemma 3 12B scores GSM8k: 94.4%, IFEval: 88.9%, DocVQA: 87.1%, BIG-Bench Hard: 85.7%, HumanEval: 85.4%.

What are the context window sizes for Gemini Diffusion and Gemma 3 12B?

Gemini Diffusion supports an unknown number of tokens and Gemma 3 12B supports 131K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini Diffusion and Gemma 3 12B?

Key differences include LLM Stats Score (0.9 vs 5.6), multimodal support (no vs yes), licensing (Proprietary vs Gemma). See the full comparison above for benchmark-by-benchmark results.

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