Google: Gemini 3.5 Flash wins on more metrics (6 of 9), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | Google: Gemini 3.5 Flash | StepFun: Step 3.7 Flash |
|---|---|---|
| Intelligence Index | 43.3✓ | 42.6 |
| Coding Index | 47.1✓ | 37.1 |
| GPQA Diamond | 83%✓ | 81% |
| Design Arena Elo | 1328✓ | 1232 |
| Speed (tokens/sec) | 174✓ | 82 |
| Latency | 1.6s | 1.5s✓ |
| Input price /M | $1.50 | $0.200✓ |
| Output price /M | $9.00 | $1.15✓ |
| Context window | 1.0M✓ | 256K |
| Capabilities | ReasoningToolsJSONVisionAudio | ReasoningToolsJSONVision |