Model Comparison

Gemma 2 9B vs GPT-5

GPT-5 significantly outperforms across most benchmarks.

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Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

Gemma 2 9B outperforms in 0 benchmarks, while GPT-5 is better at 3 benchmarks (HumanEval, MATH, MMLU).

GPT-5 significantly outperforms across most benchmarks.

Thu May 14 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only GPT-5 specifies input context (400,000 tokens). Only GPT-5 specifies output context (128,000 tokens).

Google
Gemma 2 9B
Input- tokens
Output- tokens
OpenAI
GPT-5
Input400,000 tokens
Output128,000 tokens
Thu May 14 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

GPT-5 supports multimodal inputs, whereas Gemma 2 9B does not.

GPT-5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Gemma 2 9B

Text
Images
Audio
Video

GPT-5

Text
Images
Audio
Video

License

Usage and distribution terms

Gemma 2 9B is licensed under Gemma, while GPT-5 uses a proprietary license.

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

Gemma 2 9B

Gemma

Open weights

GPT-5

Proprietary

Closed source

Release Timeline

When each model was launched

Gemma 2 9B was released on 2024-06-27, while GPT-5 was released on 2025-08-07.

GPT-5 is 14 months newer than Gemma 2 9B.

Gemma 2 9B

Jun 27, 2024

1.9 years ago

GPT-5

Aug 7, 2025

9 months ago

1.1yr newer

Knowledge Cutoff

When training data ends

GPT-5 has a documented knowledge cutoff of 2024-09-30, while Gemma 2 9B's cutoff date is not specified.

We can confirm GPT-5's training data extends to 2024-09-30, but cannot make a direct comparison without Gemma 2 9B's cutoff date.

Gemma 2 9B

—

GPT-5

Sep 2024

Outputs Comparison

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Key Takeaways

Google
Has open weights
OpenAI
Larger context window (400,000 tokens)
Supports multimodal inputs
Higher HumanEval score (93.4% vs 40.2%)
Higher MATH score (84.7% vs 36.6%)
Higher MMLU score (92.5% vs 71.3%)

Detailed Comparison

AI Model Comparison Table
Feature
Google
Gemma 2 9B
OpenAI
GPT-5

FAQ

Common questions about Gemma 2 9B vs GPT-5.

Which is better, Gemma 2 9B or GPT-5?

GPT-5 significantly outperforms across most benchmarks. Gemma 2 9B is made by Google and GPT-5 is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Gemma 2 9B compare to GPT-5 in benchmarks?

Gemma 2 9B scores ARC-E: 88.0%, BoolQ: 84.2%, HellaSwag: 81.9%, PIQA: 81.7%, Winogrande: 80.6%. GPT-5 scores SWE-Lancer (IC-Diamond subset): 100.0%, COLLIE: 99.0%, Tau2 Telecom: 96.7%, OpenAI-MRCR: 2 needle 128k: 95.2%, AIME 2025: 94.6%.

What are the context window sizes for Gemma 2 9B and GPT-5?

Gemma 2 9B supports an unknown number of tokens and GPT-5 supports 400K 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 9B and GPT-5?

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 9B and GPT-5?

Gemma 2 9B is developed by Google and GPT-5 is developed by OpenAI.