GPT-5.3-Codex vs Step 5 Preview
| GPT-5.3-Codex | Step 5 Preview | |
|---|---|---|
| Coding index | 60.0 | 61.1 |
| Benchmarks behind it | Verified, 3 benchmarks | Verified, 4 benchmarks |
| Output $/Mtok | $14.00 | $2.70 |
| Cost per solved task | $0.59 | Not computable |
| Context window | 400K | 1.05M |
| GPT-5.3-Codex | Step 5 Preview | |
|---|---|---|
| Coding index | 60.0 | 61.1 |
| Benchmarks behind it | Verified, 3 benchmarks | Verified, 4 benchmarks |
| Output $/Mtok | $14.00 | $2.70 |
| Cost per solved task | $0.59 | Not computable |
| Context window | 400K | 1.05M |