Gemma 2 9B vs GPT-4o
GPT-4o significantly outperforms across most benchmarks.
Google · OpenAI · Updated for 2026
Which is better?
Gemma 2 9B outperforms in 0 benchmarks, while GPT-4o is better at 1 benchmark (MMLU). GPT-4o significantly outperforms across most benchmarks.
Based on current benchmark, pricing, and model metadata for 2026.
Choose Gemma 2 9B
- you need open weights you can self-host or fine-tune
Choose GPT-4o
- you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
- you want the most recent training data — it shipped Aug 2024
At a glance
The differences that matter most.
Performance Benchmarks
Comparative analysis across standard metrics
Gemma 2 9B outperforms in 0 benchmarks, while GPT-4o is better at 1 benchmark (MMLU).
GPT-4o significantly outperforms across most benchmarks.
Arena Performance
Playground indexes and blind 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).
Input Capabilities
Supported data types and modalities
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
GPT-4o
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
Open weights
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.
Jun 27, 2024
2.2 years ago
Aug 6, 2024
2.1 years ago
1mo newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Outputs Comparison
Judge for yourself.
Run your own prompts against Gemma 2 9B and GPT-4o side-by-side, then vote on the output you prefer.
FAQ
Common questions about Gemma 2 9B vs GPT-4o.