GPT-5 vs GPT-5.1-Codex
| GPT-5 | GPT-5.1-Codex | |
|---|---|---|
| Coding index | 38.8 | 15.3 |
| Benchmarks behind it | Verified, 3 benchmarks | Partial, 2 benchmarks |
| Output $/Mtok | $10.00 | $10.00 |
| Cost per solved task | $0.39 | $0.892 |
| Context window | 400K | 400K |
| GPT-5 | GPT-5.1-Codex | |
|---|---|---|
| Coding index | 38.8 | 15.3 |
| Benchmarks behind it | Verified, 3 benchmarks | Partial, 2 benchmarks |
| Output $/Mtok | $10.00 | $10.00 |
| Cost per solved task | $0.39 | $0.892 |
| Context window | 400K | 400K |