Model Comparison

Gemma 3 4B vs o1-proWhich is better in 2026?

o1-pro significantly outperforms across most benchmarks.

Verdict: Gemma 3 4B vs o1-pro — which is better?

Gemma 3 4B (by Google) and o1-pro (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 3 4B outperforms in 0 benchmarks, while o1-pro is better at 1 benchmark (GPQA). o1-pro significantly outperforms across most benchmarks.

Choose Gemma 3 4B if…

  • you want the most recent training data — it shipped Mar 2025
  • you need open weights you can self-host or fine-tune

Choose o1-pro if…

  • you want the strongest raw capability — it leads on 1 of 1 shared benchmarks

Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Gemma 3 4B outperforms in 0 benchmarks, while o1-pro is better at 1 benchmark (GPQA).

o1-pro significantly outperforms across most benchmarks.

Tue Jul 21 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Gemma 3 4B specifies input context (131,072 tokens). Only Gemma 3 4B specifies output context (131,072 tokens).

Google
Gemma 3 4B
Input131,072 tokens
Output131,072 tokens
OpenAI
o1-pro
Input- tokens
Output- tokens
Tue Jul 21 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemma 3 4B and o1-pro support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Gemma 3 4B

Text
Images
Audio
Video

o1-pro

Text
Images
Audio
Video

License

Usage and distribution terms

Gemma 3 4B is licensed under Gemma, while o1-pro uses a proprietary license.

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

Gemma 3 4B

Gemma

Open weights

o1-pro

Proprietary

Closed source

Release Timeline

When each model was launched

Gemma 3 4B was released on 2025-03-12, while o1-pro was released on 2024-12-17.

Gemma 3 4B is 3 months newer than o1-pro.

Gemma 3 4B

Mar 12, 2025

1.4 years ago

2mo newer
o1-pro

Dec 17, 2024

1.6 years ago

Knowledge Cutoff

When training data ends

Gemma 3 4B has a knowledge cutoff of 2024-08-01, while o1-pro has a cutoff of 2023-09-30.

Gemma 3 4B has more recent training data (up to 2024-08-01), making it potentially better informed about events through that date compared to o1-pro (2023-09-30).

Gemma 3 4B

Aug 2024

11 mo newer
o1-pro

Sep 2023

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Google
Larger context window (131,072 tokens)
Has open weights
OpenAI
Higher GPQA score (79.0% vs 30.8%)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Gemma 3 4B and o1-pro side-by-side, then vote on the output you prefer.

Gemma 3 4B
✓ Preferred
o1-pro
Open in Playground
AI Model Comparison Table
Feature
Google
Gemma 3 4B
OpenAI
o1-pro

FAQ

Common questions about Gemma 3 4B vs o1-pro.

Which is better, Gemma 3 4B or o1-pro?

o1-pro significantly outperforms across most benchmarks. Gemma 3 4B is made by Google and o1-pro is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Gemma 3 4B compare to o1-pro in benchmarks?

Gemma 3 4B scores IFEval: 90.2%, GSM8k: 89.2%, DocVQA: 75.8%, MATH: 75.6%, AI2D: 74.8%. o1-pro scores AIME 2024: 86.0%, GPQA: 79.0%.

What are the context window sizes for Gemma 3 4B and o1-pro?

Gemma 3 4B supports 131K tokens and o1-pro 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 Gemma 3 4B and o1-pro?

Key differences include licensing (Gemma vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemma 3 4B and o1-pro?

Gemma 3 4B is developed by Google and o1-pro is developed by OpenAI.

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