Google: Gemini 3.1 Flash Lite Preview wins on more metrics (8 of 9), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | Google: Gemini 3.1 Flash Lite Preview | OpenAI: o4 Mini |
|---|---|---|
| Intelligence Index | 33.5✓ | 33.1 |
| Coding Index | 30.1✓ | 25.6 |
| GPQA Diamond | 82%✓ | 78% |
| Design Arena Elo | 1211✓ | 1072 |
| Speed (tokens/sec) | 103 | 125✓ |
| Latency | 651ms✓ | 4.7s |
| Input price /M | $0.250✓ | $1.10 |
| Output price /M | $1.50✓ | $4.40 |
| Context window | 1.0M✓ | 200K |
| Capabilities | ReasoningToolsJSONVisionAudio | ReasoningToolsJSONVision |