Claude Opus 5.5 vs DeepSeek V4 Flash 0731
| Claude Opus 5.5 | DeepSeek V4 Flash 0731 | |
|---|---|---|
| Coding index | 88.8 | 51.8 |
| Benchmarks behind it | Verified, 5 benchmarks | Verified, 4 benchmarks |
| Output $/Mtok | $20.00 | $0.396 |
| Cost per solved task | Not computable | $0.01 |
| Context window | 1M | 1.05M |