Model Comparison

Gemma 2 27B vs GPT-4o miniWhich is better in 2026?

GPT-4o mini significantly outperforms across most benchmarks.

Verdict: Gemma 2 27B vs GPT-4o mini — which is better?

Gemma 2 27B (by Google) and GPT-4o mini (by OpenAI) 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.

Gemma 2 27B outperforms in 0 benchmarks, while GPT-4o mini is better at 3 benchmarks (HumanEval, MATH, MMLU). GPT-4o mini significantly outperforms across most benchmarks.

Choose Gemma 2 27B if…

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

Choose GPT-4o mini if…

  • you want the strongest raw capability — it leads on 3 of 3 shared benchmarks
  • you want the most recent training data — it shipped Jul 2024
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Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

Gemma 2 27B outperforms in 0 benchmarks, while GPT-4o mini is better at 3 benchmarks (HumanEval, MATH, MMLU).

GPT-4o mini significantly outperforms across most benchmarks.

Tue Jun 16 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only GPT-4o mini specifies input context (128,000 tokens). Only GPT-4o mini specifies output context (16,384 tokens).

Google
Gemma 2 27B
Input- tokens
Output- tokens
OpenAI
GPT-4o mini
Input128,000 tokens
Output16,384 tokens
Tue Jun 16 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

GPT-4o mini supports multimodal inputs, whereas Gemma 2 27B does not.

GPT-4o mini can handle both text and other forms of data like images, making it suitable for multimodal applications.

Gemma 2 27B

Text
Images
Audio
Video

GPT-4o mini

Text
Images
Audio
Video

License

Usage and distribution terms

Gemma 2 27B is licensed under Gemma, while GPT-4o mini uses a proprietary license.

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

Gemma 2 27B

Gemma

Open weights

GPT-4o mini

Proprietary

Closed source

Release Timeline

When each model was launched

Gemma 2 27B was released on 2024-06-27, while GPT-4o mini was released on 2024-07-18.

GPT-4o mini is 1 month newer than Gemma 2 27B.

Gemma 2 27B

Jun 27, 2024

2.0 years ago

GPT-4o mini

Jul 18, 2024

1.9 years ago

3w newer

Knowledge Cutoff

When training data ends

GPT-4o mini has a documented knowledge cutoff of 2023-10-01, while Gemma 2 27B's cutoff date is not specified.

We can confirm GPT-4o mini's training data extends to 2023-10-01, but cannot make a direct comparison without Gemma 2 27B's cutoff date.

Gemma 2 27B

—

GPT-4o mini

Oct 2023

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Google
Has open weights
OpenAI
Larger context window (128,000 tokens)
Supports multimodal inputs
Higher HumanEval score (87.2% vs 51.8%)
Higher MATH score (70.2% vs 42.3%)
Higher MMLU score (82.0% vs 75.2%)

Detailed Comparison

AI Model Comparison Table
Feature
Google
Gemma 2 27B
OpenAI
GPT-4o mini

FAQ

Common questions about Gemma 2 27B vs GPT-4o mini.

Which is better, Gemma 2 27B or GPT-4o mini?

GPT-4o mini significantly outperforms across most benchmarks. Gemma 2 27B is made by Google and GPT-4o mini is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Gemma 2 27B compare to GPT-4o mini in benchmarks?

Gemma 2 27B scores ARC-E: 88.6%, HellaSwag: 86.4%, BoolQ: 84.8%, TriviaQA: 83.7%, Winogrande: 83.7%. GPT-4o mini scores HumanEval: 87.2%, MGSM: 87.0%, MMLU: 82.0%, DROP: 79.7%, MATH: 70.2%.

What are the context window sizes for Gemma 2 27B and GPT-4o mini?

Gemma 2 27B supports an unknown number of tokens and GPT-4o mini supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemma 2 27B and GPT-4o mini?

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

Who makes Gemma 2 27B and GPT-4o mini?

Gemma 2 27B is developed by Google and GPT-4o mini is developed by OpenAI.

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