OpenAI: GPT-5.4 Mini and Z.ai: GLM 4.6V are evenly matched; the right pick depends on your priorities.
| Metric | OpenAI: GPT-5.4 Mini | Z.ai: GLM 4.6V |
|---|---|---|
| Intelligence Index | 23.3 | 23.4✓ |
| Coding Index | 25.3✓ | 19.7 |
| GPQA Diamond | 61% | 72%✓ |
| Design Arena Elo | — | — |
| Speed (tokens/sec) | 85✓ | 60 |
| Latency | 825ms✓ | 1.5s |
| Input price /M | $0.750 | $0.300✓ |
| Output price /M | $4.50 | $0.900✓ |
| Context window | 400K✓ | 131K |
| Capabilities | ReasoningToolsJSONVision | ReasoningToolsJSONVision |