Z.ai: GLM 5.2 wins on more metrics (6 of 8), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | DeepSeek: DeepSeek V4 Flash | Z.ai: GLM 5.2 |
|---|---|---|
| Intelligence Index | 40.3 | 50.7✓ |
| Coding Index | 38.7 | 50.7✓ |
| GPQA Diamond | 89% | 90%✓ |
| Design Arena Elo | 1275 | 1369✓ |
| Speed (tokens/sec) | — | 33✓ |
| Latency | — | 1.7s✓ |
| Input price /M | $0.090✓ | $1.40 |
| Output price /M | $0.180✓ | $4.40 |
| Context window | 1.0M | 1.0M |
| Capabilities | ReasoningToolsJSON | ReasoningToolsJSON |