Head to head
Drex v1.5 scores 77.6 and GPT-6 Luna Decisions 76.0 on the System One Index. Drex v1.5 is more accurate on 8 of 16 text datasets, GPT-6 Luna Decisions on 8. Same cases, same request, same scorer.
| Drex v1.5 | GPT-6 Luna Decisions | |
|---|---|---|
| System One Index | 77.6 | 76.0 |
| English | 77.6 | 75.2 |
| Arabic | 77.0 | 78.8 |
| Vision Index | – | 81.6 |
| Calibration error | 10.8% | 9.8% |
| Median latency | 198 ms | 215 ms |
| Cost per 1,000 calls | $0.010 | $0.040 |
| Drex v1.5 | GPT-6 Luna Decisions | |
|---|---|---|
| AG News English | 90.0 | 87.5 |
| SST-2 English | 94.5 | 93.5 |
| SST-5 English | 53.5 | 61.5 |
| DAIR Emotion English | 53.5 | 58.5 |
| Banking77 English | 87.0 | 77.5 |
| BoolQ English | 89.0 | 85.5 |
| XNLI English English | 88.7 | 66.7 |
| Typed decisions English | 64.8 | 71.0 |
| XNLI French French | 82.0 | 62.0 |
| XNLI Arabic Arabic | 74.0 | 54.0 |
| MASSIVE scenario Arabic | 58.5 | 66.0 |
| MASSIVE intent Arabic | 77.5 | 84.5 |
| OSACT4 offensive Arabic | 90.5 | 93.5 |
| Tweet sentiment Arabic | 63.5 | 80.0 |
| MIRACL rerank Arabic | 89.0 | 86.0 |
| MIRACL pairwise Arabic | 86.0 | 87.5 |
| Drex v1.5 | GPT-6 Luna Decisions | |
|---|---|---|
| SST-2, as an image | – | 88.5 |
| Arabic sentiment, as an image | – | 67.0 |
| Oxford-IIIT Pet | – | 87.0 |
| VQAv2 yes/no | – | 80.5 |
| CountBench | – | 85.0 |
Model pages: Drex v1.5 · GPT-6 Luna Decisions. Latency for API models is the median per call through OpenRouter, timed from one machine.