Anthropic: Claude Opus 4.8 wins on more metrics (5 of 8), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | Anthropic: Claude Opus 4.8 | Qwen: Qwen3.6 Plus |
|---|---|---|
| Intelligence Index | 61.4✓ | 50.0 |
| Coding Index | 56.7✓ | 42.9 |
| GPQA Diamond | 92%✓ | 88% |
| Design Arena Elo | 1372✓ | 1288 |
| Speed (tokens/sec) | 59✓ | 36 |
| Latency | 1.8s | 1.1s✓ |
| Input price /M | $5.00 | $0.325✓ |
| Output price /M | $25.00 | $1.95✓ |
| Context window | 1M | 1M |
| Capabilities | ReasoningToolsJSONVision | ReasoningToolsJSONVision |