GPT-5.1-Codex vs Step 5 Preview
| GPT-5.1-Codex | Step 5 Preview | |
|---|---|---|
| Coding index | 15.3 | 61.1 |
| Benchmarks behind it | Partial, 2 benchmarks | Verified, 4 benchmarks |
| Output $/Mtok | $10.00 | $2.70 |
| Cost per solved task | $0.892 | Not computable |
| Context window | 400K | 1.05M |
| GPT-5.1-Codex | Step 5 Preview | |
|---|---|---|
| Coding index | 15.3 | 61.1 |
| Benchmarks behind it | Partial, 2 benchmarks | Verified, 4 benchmarks |
| Output $/Mtok | $10.00 | $2.70 |
| Cost per solved task | $0.892 | Not computable |
| Context window | 400K | 1.05M |