GPT-5.1 vs GPT-5.3-Codex
| GPT-5.1 | GPT-5.3-Codex | |
|---|---|---|
| Coding index | 40.4 | 60.0 |
| Benchmarks behind it | Verified, 3 benchmarks | Verified, 3 benchmarks |
| Output $/Mtok | $10.00 | $14.00 |
| Cost per solved task | $1.02 | $0.59 |
| Context window | 400K | 400K |
| GPT-5.1 | GPT-5.3-Codex | |
|---|---|---|
| Coding index | 40.4 | 60.0 |
| Benchmarks behind it | Verified, 3 benchmarks | Verified, 3 benchmarks |
| Output $/Mtok | $10.00 | $14.00 |
| Cost per solved task | $1.02 | $0.59 |
| Context window | 400K | 400K |