Gemma 3 vs o3
Google Gemma 3 | OpenAI o3 | |
|---|---|---|
| Overview | ||
| Company | OpenAI | |
| Release date | Mar 12 2025 | Apr 16 2025 |
| Access | Open Weight | Proprietary |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | — | 26% |
| Timeline | ||
| Release gap | Gemma 3 shipped 35 days before o3 | |
Which is better: Gemma 3 or o3?
Gemma 3 and o3 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Gemma 3 shipped 35 days before o3, so benchmark comparisons should account for the intervening progress.
Gemma 3 is open weight, while o3 is proprietary.
Direct benchmark comparisons are unavailable — Gemma 3 and o3 don't publish scores on any of the same benchmarks.
Frequently asked questions
Gemma 3 was released by Google on Mar 12 2025.
o3 was released by OpenAI on Apr 16 2025.
Gemma 3 is an open weight model released by Google. o3 is a proprietary model released by OpenAI.