Model Comparison

Claude Sonnet 4.6 vs Gemma 4 12B UnifiedWhich is better in 2026?

Claude Sonnet 4.6 significantly outperforms across most benchmarks.

Verdict: Claude Sonnet 4.6 vs Gemma 4 12B Unified — which is better?

Claude Sonnet 4.6 (by Anthropic) and Gemma 4 12B Unified (by Google) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Claude Sonnet 4.6 outperforms in 4 benchmarks (GPQA, Humanity's Last Exam, MMMLU, MMMU-Pro), while Gemma 4 12B Unified is better at 0 benchmarks. Claude Sonnet 4.6 significantly outperforms across most benchmarks.

Choose Claude Sonnet 4.6 if…

  • you want the strongest raw capability — it leads on 4 of 4 shared benchmarks

Choose Gemma 4 12B Unified if…

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

Comparative analysis across standard metrics

4 benchmarks

Claude Sonnet 4.6 outperforms in 4 benchmarks (GPQA, Humanity's Last Exam, MMMLU, MMMU-Pro), while Gemma 4 12B Unified is better at 0 benchmarks.

Claude Sonnet 4.6 significantly outperforms across most benchmarks.

Tue Jun 09 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Claude Sonnet 4.6 specifies input context (200,000 tokens). Only Claude Sonnet 4.6 specifies output context (64,000 tokens).

Anthropic
Claude Sonnet 4.6
Input200,000 tokens
Output64,000 tokens
Google
Gemma 4 12B Unified
Input- tokens
Output- tokens
Tue Jun 09 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude Sonnet 4.6 and Gemma 4 12B Unified support multimodal inputs.

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

Claude Sonnet 4.6

Text
Images
Audio
Video

Gemma 4 12B Unified

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Sonnet 4.6 is licensed under a proprietary license, while Gemma 4 12B Unified uses Apache 2.0.

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

Claude Sonnet 4.6

Proprietary

Closed source

Gemma 4 12B Unified

Apache 2.0

Open weights

Release Timeline

When each model was launched

Claude Sonnet 4.6 was released on 2026-02-17, while Gemma 4 12B Unified was released on 2026-05-23.

Gemma 4 12B Unified is 3 months newer than Claude Sonnet 4.6.

Claude Sonnet 4.6

Feb 17, 2026

3 months ago

Gemma 4 12B Unified

May 23, 2026

2 weeks ago

3mo newer

Knowledge Cutoff

When training data ends

Gemma 4 12B Unified has a documented knowledge cutoff of 2025-01-01, while Claude Sonnet 4.6's cutoff date is not specified.

We can confirm Gemma 4 12B Unified's training data extends to 2025-01-01, but cannot make a direct comparison without Claude Sonnet 4.6's cutoff date.

Claude Sonnet 4.6

—

Gemma 4 12B Unified

Jan 2025

Outputs Comparison

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Key Takeaways

Anthropic
Larger context window (200,000 tokens)
Higher GPQA score (89.9% vs 78.8%)
Higher Humanity's Last Exam score (49.0% vs 5.2%)
Higher MMMLU score (89.3% vs 83.4%)
Higher MMMU-Pro score (75.6% vs 69.1%)
Google
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude Sonnet 4.6
Google
Gemma 4 12B Unified

FAQ

Common questions about Claude Sonnet 4.6 vs Gemma 4 12B Unified.

Which is better, Claude Sonnet 4.6 or Gemma 4 12B Unified?

Claude Sonnet 4.6 significantly outperforms across most benchmarks. Claude Sonnet 4.6 is made by Anthropic and Gemma 4 12B Unified is made by Google. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Claude Sonnet 4.6 compare to Gemma 4 12B Unified in benchmarks?

Claude Sonnet 4.6 scores Tau2 Telecom: 97.9%, Tau2 Retail: 91.7%, GPQA: 89.9%, MMMLU: 89.3%, SWE-Bench Verified: 79.6%. Gemma 4 12B Unified scores MMMLU: 83.4%, MathVision: 79.7%, GPQA: 78.8%, AIME 2026: 77.5%, MMLU-Pro: 77.2%.

What are the context window sizes for Claude Sonnet 4.6 and Gemma 4 12B Unified?

Claude Sonnet 4.6 supports 200K tokens and Gemma 4 12B Unified 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 Claude Sonnet 4.6 and Gemma 4 12B Unified?

Key differences include licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Sonnet 4.6 and Gemma 4 12B Unified?

Claude Sonnet 4.6 is developed by Anthropic and Gemma 4 12B Unified is developed by Google.

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