Model Comparison

Claude Opus 4.5 vs Gemma 2 27BWhich is better in 2026?

Comparing Claude Opus 4.5 and Gemma 2 27B across benchmarks, pricing, and capabilities.

Verdict: Claude Opus 4.5 vs Gemma 2 27B — which is better?

Claude Opus 4.5 (by Anthropic) and Gemma 2 27B (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.

Choose Claude Opus 4.5 if…

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

Choose Gemma 2 27B if…

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

Comparative analysis across standard metrics

No common benchmarks found

Claude Opus 4.5 and Gemma 2 27B don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Claude Opus 4.5 specifies input context (200,000 tokens). Only Claude Opus 4.5 specifies output context (64,000 tokens).

Anthropic
Claude Opus 4.5
Input200,000 tokens
Output64,000 tokens
Google
Gemma 2 27B
Input- tokens
Output- tokens
Sat Jun 06 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude Opus 4.5 supports multimodal inputs, whereas Gemma 2 27B does not.

Claude Opus 4.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude Opus 4.5

Text
Images
Audio
Video

Gemma 2 27B

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Opus 4.5 is licensed under a proprietary license, while Gemma 2 27B uses Gemma.

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

Claude Opus 4.5

Proprietary

Closed source

Gemma 2 27B

Gemma

Open weights

Release Timeline

When each model was launched

Claude Opus 4.5 was released on 2025-11-24, while Gemma 2 27B was released on 2024-06-27.

Claude Opus 4.5 is 17 months newer than Gemma 2 27B.

Claude Opus 4.5

Nov 24, 2025

6 months ago

1.4yr newer
Gemma 2 27B

Jun 27, 2024

1.9 years ago

Knowledge Cutoff

When training data ends

Claude Opus 4.5 has a documented knowledge cutoff of 2025-03-31, while Gemma 2 27B's cutoff date is not specified.

We can confirm Claude Opus 4.5's training data extends to 2025-03-31, but cannot make a direct comparison without Gemma 2 27B's cutoff date.

Claude Opus 4.5

Mar 2025

Gemma 2 27B

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Outputs Comparison

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Key Takeaways

Anthropic
Larger context window (200,000 tokens)
Supports multimodal inputs
Google
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude Opus 4.5
Google
Gemma 2 27B

FAQ

Common questions about Claude Opus 4.5 vs Gemma 2 27B.

Which is better, Claude Opus 4.5 or Gemma 2 27B?

Claude Opus 4.5 (Anthropic) and Gemma 2 27B (Google) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does Claude Opus 4.5 compare to Gemma 2 27B in benchmarks?

Claude Opus 4.5 scores Tau2 Telecom: 98.2%, MMMLU: 90.8%, Tau2 Retail: 88.9%, GPQA: 87.0%, SWE-Bench Verified: 80.9%. Gemma 2 27B scores ARC-E: 88.6%, HellaSwag: 86.4%, BoolQ: 84.8%, TriviaQA: 83.7%, Winogrande: 83.7%.

What are the context window sizes for Claude Opus 4.5 and Gemma 2 27B?

Claude Opus 4.5 supports 200K tokens and Gemma 2 27B 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 Opus 4.5 and Gemma 2 27B?

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

Who makes Claude Opus 4.5 and Gemma 2 27B?

Claude Opus 4.5 is developed by Anthropic and Gemma 2 27B is developed by Google.

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