Z.ai: GLM 4.5 wins on more metrics (6 of 9), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | Upstage: Solar Pro 3 | Z.ai: GLM 4.5 |
|---|---|---|
| Intelligence Index | 25.9 | 26.4✓ |
| Coding Index | 13.3 | 26.3✓ |
| GPQA Diamond | 72% | 78%✓ |
| Design Arena Elo | — | 1251✓ |
| Speed (tokens/sec) | 9 | 40✓ |
| Latency | 955ms✓ | 2.4s |
| Input price /M | $0.150✓ | $0.600 |
| Output price /M | $0.600✓ | $2.20 |
| Context window | 128K | 131K✓ |
| Capabilities | ReasoningToolsJSON | ReasoningToolsJSON |