Gemma 3 vs o3-pro
Google Gemma 3 | OpenAI o3-pro | |
|---|---|---|
| Overview | ||
| Company | OpenAI | |
| Release date | Mar 12 2025 | Jun 10 2025 |
| Access | Open Weight | Proprietary |
| Timeline | ||
| Release gap | Gemma 3 shipped 90 days before o3-pro | |
Which is better: Gemma 3 or o3-pro?
Gemma 3 and o3-pro don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Gemma 3 shipped 90 days before o3-pro, so benchmark comparisons should account for the intervening progress.
Gemma 3 is open weight, while o3-pro is proprietary.
Direct benchmark comparisons are unavailable — Gemma 3 and o3-pro don't publish scores on any of the same benchmarks.
Frequently asked questions
Gemma 3 was released by Google on Mar 12 2025.
o3-pro was released by OpenAI on Jun 10 2025.
Gemma 3 is an open weight model released by Google. o3-pro is a proprietary model released by OpenAI.