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Gemma 2 9B vs GPT-4o

GPT-4o leads the LLM Stats Score 14.1 to -4.9.

Google · OpenAI · Updated for 2026

Which is better?

GPT-4o leads the overall LLM Stats Score 14.1 to -4.9, ranking #244 overall.

In the 1 individual benchmarks reported for both models, GPT-4o wins 1; this is a narrower head-to-head signal than the composite indexes.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Gemma 2 9B

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

Choose GPT-4o

  • overall performance matters — it scores 14.1 and ranks #244 on LLM Stats
  • your work emphasizes reasoning — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • you want the most recent training data — it shipped Aug 2024

At a glance

The differences that matter most.

Core performance indexes
-4.9
#360
14.1
#244
-5.2
#353
15.9
#225
-11.0
#271
-0.6
#251
Cost, coverage & limits
Benchmark wins
0 of 1
1 of 1
Input price
— / M
$2.50 / M
Output price
— / M
$10.00 / M
Context window
—
128,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Gemma 2 9B
GPT-4o
-3.8#315
12.5#234
-0.1#185
16.3#97
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

16 reported for Gemma 2 9B · 38 for GPT-4o

1 shared

Gemma 2 9B outperforms in 0 benchmarks, while GPT-4o is better at 1 benchmark (MMLU).

GPT-4o significantly outperforms across most benchmarks.

Fri Sep 25 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

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

Google
Gemma 2 9B
Input- tokens
Output- tokens
OpenAI
GPT-4o
Input128,000 tokens
Output16,384 tokens
Fri Sep 25 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

GPT-4o supports multimodal inputs, whereas Gemma 2 9B does not.

GPT-4o 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-4o

Text
Images
Audio
Video

License

Usage and distribution terms

Gemma 2 9B is licensed under Gemma, while GPT-4o 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-4o

Proprietary

Closed source

Release Timeline

When each model was launched

Gemma 2 9B was released on 2024-06-27, while GPT-4o was released on 2024-08-06.

GPT-4o is 1 month newer than Gemma 2 9B.

Gemma 2 9B

Jun 27, 2024

2.2 years ago

GPT-4o

Aug 6, 2024

2.1 years ago

1mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Gemma 2 9B and GPT-4o side-by-side, then vote on the output you prefer.

Gemma 2 9B
✓ Preferred
GPT-4o
Open in Playground

FAQ

Common questions about Gemma 2 9B vs GPT-4o.

Which is better, Gemma 2 9B or GPT-4o?

GPT-4o leads the LLM Stats Score 14.1 to -4.9. Gemma 2 9B is made by Google and GPT-4o is made by OpenAI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Gemma 2 9B compare to GPT-4o in benchmarks?

Gemma 2 9B scores ARC-E: 88.0%, BoolQ: 84.2%, HellaSwag: 81.9%, PIQA: 81.7%, Winogrande: 80.6%. GPT-4o scores AI2D: 94.2%, DocVQA: 92.8%, ChartQA: 85.7%, MMLU: 85.7%, CharXiv-D: 85.3%.

What are the context window sizes for Gemma 2 9B and GPT-4o?

Gemma 2 9B supports an unknown number of tokens and GPT-4o 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 9B and GPT-4o?

Key differences include LLM Stats Score (-4.9 vs 14.1), 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-4o?

Gemma 2 9B is developed by Google and GPT-4o is developed by OpenAI.