GPT-5.3-Codex vs GPT-5.4 Nano
| GPT-5.3-Codex | GPT-5.4 Nano | |
|---|---|---|
| Coding index | 60.0 | 44.8 |
| Benchmarks behind it | Verified, 3 benchmarks | Partial, 2 benchmarks |
| Output $/Mtok | $14.00 | $1.25 |
| Cost per solved task | $0.59 | $0.14 |
| Context window | 400K | 400K |
| GPT-5.3-Codex | GPT-5.4 Nano | |
|---|---|---|
| Coding index | 60.0 | 44.8 |
| Benchmarks behind it | Verified, 3 benchmarks | Partial, 2 benchmarks |
| Output $/Mtok | $14.00 | $1.25 |
| Cost per solved task | $0.59 | $0.14 |
| Context window | 400K | 400K |