Gemma 3 1B vs o3-pro
Comparing Gemma 3 1B and o3-pro across benchmarks, pricing, and capabilities.
Google · OpenAI · Updated for 2026
Which is better?
Gemma 3 1B and o3-pro trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Gemma 3 1B
- you need open weights you can self-host or fine-tune
Choose o3-pro
- you want the most recent training data — it shipped Jun 2025
At a glance
The differences that matter most.
Individual benchmarks
18 reported for Gemma 3 1B · 0 for o3-pro
Gemma 3 1B and o3-prodon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only o3-pro specifies input context (200,000 tokens). Only o3-pro specifies output context (100,000 tokens).
Input capabilities
Documented input modalities across available providers
o3-pro supports multimodal inputs, whereas Gemma 3 1B does not.
o3-pro can handle both text and other forms of data like images, making it suitable for multimodal applications.
Gemma 3 1B
o3-pro
License
Usage and distribution terms
Gemma 3 1B is licensed under Gemma, while o3-pro 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 3 1B was released on 2025-03-12, while o3-pro was released on 2025-06-10.
o3-pro is 3 months newer than Gemma 3 1B.
Mar 12, 2025
1.5 years ago
Jun 10, 2025
1.2 years ago
3mo newerKnowledge Cutoff
When training data ends
o3-pro has a documented knowledge cutoff of 2024-05-31, while Gemma 3 1B's cutoff date is not specified.
We can confirm o3-pro's training data extends to 2024-05-31, but cannot make a direct comparison without Gemma 3 1B's cutoff date.
—
May 2024
Outputs Comparison
Judge for yourself.
Run your own prompts against Gemma 3 1B and o3-pro side-by-side, then vote on the output you prefer.
FAQ
Common questions about Gemma 3 1B vs o3-pro.