DeepSeek V4 Flash 0731 vs GPT-5.3-Codex
| DeepSeek V4 Flash 0731 | GPT-5.3-Codex | |
|---|---|---|
| Coding index | 51.8 | 60.0 |
| Benchmarks behind it | Verified, 4 benchmarks | Verified, 3 benchmarks |
| Output $/Mtok | $0.396 | $14.00 |
| Cost per solved task | $0.01 | $0.59 |
| Context window | 1.05M | 400K |