Upstage: Solar Pro 3 wins on more metrics (5 of 9), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | OpenAI: GPT-4.1 | Upstage: Solar Pro 3 |
|---|---|---|
| Intelligence Index | 26.3✓ | 25.9 |
| Coding Index | 21.8✓ | 13.3 |
| GPQA Diamond | 67% | 72%✓ |
| Design Arena Elo | 1149✓ | — |
| Speed (tokens/sec) | 55 | 75✓ |
| Latency | 648ms | 531ms✓ |
| Input price /M | $2.00 | $0.150✓ |
| Output price /M | $8.00 | $0.600✓ |
| Context window | 1.0M✓ | 128K |
| Capabilities | ToolsJSONVision | ReasoningToolsJSON |