DeepSeek: DeepSeek V4 Pro wins on more metrics (5 of 9), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | DeepSeek: DeepSeek V4 Pro | Qwen: Qwen3.5 397B A17B |
|---|---|---|
| Intelligence Index | 39.3 | 40.1✓ |
| Coding Index | 38.4✓ | 37.4 |
| GPQA Diamond | 72% | 86%✓ |
| Design Arena Elo | 1348✓ | 1242 |
| Speed (tokens/sec) | 73 | 163✓ |
| Latency | 603ms✓ | 703ms |
| Input price /M | $0.435 | $0.390✓ |
| Output price /M | $0.870✓ | $2.34 |
| Context window | 1.0M✓ | 262K |
| Capabilities | ReasoningToolsJSON | ReasoningToolsJSONVision |