Claude Opus 5.5 vs GPT-5.1
| Claude Opus 5.5 | GPT-5.1 | |
|---|---|---|
| Coding index | 88.8 | 40.4 |
| Benchmarks behind it | Verified, 5 benchmarks | Verified, 3 benchmarks |
| Output $/Mtok | $20.00 | $10.00 |
| Cost per solved task | Not computable | $1.02 |
| Context window | 1M | 400K |
| Claude Opus 5.5 | GPT-5.1 | |
|---|---|---|
| Coding index | 88.8 | 40.4 |
| Benchmarks behind it | Verified, 5 benchmarks | Verified, 3 benchmarks |
| Output $/Mtok | $20.00 | $10.00 |
| Cost per solved task | Not computable | $1.02 |
| Context window | 1M | 400K |