Compare / GPT-5.5 vs GPT-6.1 Sol
GPT-5.5 vs GPT-6.1 Sol
7 results from 3 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | GPT-5.5 | GPT-6.1 Sol |
|---|---|---|---|
| APEX-Agentsreported | Tasks passed% of tasks | 55.1% | 60.0% |
| Artificial Analysisreported | Artificial Analysis Intelligence Indexindex score | 38.4 | 51.8 |
| Artificial Analysisreported | Humanity's Last Exam% of questions | 45.8% | 52.9% |
| Artificial Analysisreported | Long-context reasoning (AA-LCR)% of questions | 84.3% | 84.0% |
| Artificial Analysisreported | SciCode% of problems | 56.1% | 55.8% |
| Artificial Analysisreported | Terminal-Bench 4.0% of tasks | 14.6% | 56.1% |
| SimpleQA Verified (Epoch AI)reported | Correct answers% of questions | 63.0% | 73.9% |
Bold green marks the better value on that metric. Where a source reports ranges that overlap, the difference may not be meaningful; see the benchmark page for ranges.