1 vs 1 benchmarks won
Google Gemini 3.0 Flash | OpenAI GPT-5.5 | |
|---|---|---|
| Overview | ||
| Company | OpenAI | |
| Release date | Dec 17 2025 | Apr 23 2026 |
| Model type | — | — |
| Open source | No | No |
| Specifications | ||
Parameters | — | — |
Context window | — | — |
| Benchmarks | ||
Science reasoning GPQA Diamond | 90.4% | 93.6% |
Software engineering SWE-Bench Verified | 78% | — |
Multimodal understanding MMMU | — | — |
| Timeline | ||
| Release gap | Gemini 3.0 Flash shipped 127 days before GPT-5.5 | |
Gemini 3.0 Flash and GPT-5.5 are evenly matched across the benchmarks they both publish. Gemini 3.0 Flash shipped 127 days before GPT-5.5, so benchmark comparisons should account for the intervening progress.
Published specifications for these two models are limited — see each model page for the latest details.
On GPQA Diamond, GPT-5.5 scores 93.6%, 3.2 points above Gemini 3.0 Flash at 90.4%.