Google Gemini 2.5 Flash vs Google Gemini 3.1 Flash — side-by-side specs.
Google Gemini 2.5 Flash | Google Gemini 3.1 Flash | |
|---|---|---|
| Overview | ||
| Company | ||
| Release date | Apr 17 2025 | Feb 26 2026 |
| Model type | — | — |
| Open source | No | No |
| Specifications | ||
Parameters | — | — |
Context window | — | — |
| Benchmarks | ||
Science reasoning GPQA Diamond | — | — |
Software engineering SWE-Bench Verified | — | — |
Multimodal understanding MMMU | — | — |
| Timeline | ||
| Release gap | Gemini 2.5 Flash shipped 315 days before Gemini 3.1 Flash | |
Gemini 2.5 Flash and Gemini 3.1 Flash do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Gemini 2.5 Flash shipped 315 days before Gemini 3.1 Flash, 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.
Direct benchmark comparisons are unavailable — at least one of these models has not published scores on GPQA Diamond, SWE-Bench Verified, or MMMU.