Anthropic: Claude Opus 4.6 wins on more metrics (6 of 8), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | Anthropic: Claude Opus 4.6 | Qwen: Qwen3.6 Plus |
|---|---|---|
| Intelligence Index | 52.9✓ | 50.0 |
| Coding Index | 48.1✓ | 42.9 |
| GPQA Diamond | 90%✓ | 88% |
| Design Arena Elo | 1358✓ | 1288 |
| Speed (tokens/sec) | 52✓ | 32 |
| Latency | 1.0s✓ | 1.4s |
| Input price /M | $5.00 | $0.325✓ |
| Output price /M | $25.00 | $1.95✓ |
| Context window | 1M | 1M |
| Capabilities | ReasoningToolsJSONVision | ReasoningToolsJSONVision |