Model Comparison

GPT-4o mini vs Gemma 2 27BWhich is better in 2026?

GPT-4o mini significantly outperforms across most benchmarks.

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

GPT-4o mini (by OpenAI) 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.

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

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

Choose Gemma 2 27B if…

  • you need open weights you can self-host or fine-tune
Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

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

GPT-4o mini significantly outperforms across most benchmarks.

Sat Jun 06 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).

OpenAI
GPT-4o mini
Input128,000 tokens
Output16,384 tokens
Google
Gemma 2 27B
Input- tokens
Output- tokens
Sat Jun 06 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.

GPT-4o mini

Text
Images
Audio
Video

Gemma 2 27B

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-4o mini 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.

GPT-4o mini

Proprietary

Closed source

Gemma 2 27B

Gemma

Open weights

Release Timeline

When each model was launched

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

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

GPT-4o mini

Jul 18, 2024

1.9 years ago

3w newer
Gemma 2 27B

Jun 27, 2024

1.9 years ago

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.

GPT-4o mini

Oct 2023

Gemma 2 27B

—

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

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%)
Google
Has open weights

Detailed Comparison

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

FAQ

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

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

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

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

GPT-4o mini scores HumanEval: 87.2%, MGSM: 87.0%, MMLU: 82.0%, DROP: 79.7%, MATH: 70.2%. 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 GPT-4o mini and Gemma 2 27B?

GPT-4o mini supports 128K 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 GPT-4o mini 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 GPT-4o mini and Gemma 2 27B?

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

Related comparisons