GPT-5.6 Terra (Medium): benchmark results
GPT-5.6 Terra evaluated at the medium reasoning-effort setting. Provider: OpenAI. Released 2026-07-09. Access: API.
Unified ELO 1674 ± 1, rank #168 of 1761 rated models, from 39 benchmark results.
Strongest benchmark results
| Benchmark | Score | Metric | Percentile |
|---|---|---|---|
| AA CritPt | 17.43 | Accuracy (%) | 90.5 |
| AA Omniscience - Software Engineering (SWE) | 69.6 | Accuracy (%) | 90.5 |
| AA Omniscience - Health | 42.2 | Accuracy (%) | 89.9 |
| Artificial Analysis Intelligence Index | 37.23 | Intelligence Index | 88.9 |
| AA Omniscience - Humanities & Social Sciences | 41.6 | Accuracy (%) | 87.7 |
| LLM Chess (Saplin) | 935.9 | ELO | 87.6 |
| AA-Omniscience Accuracy | 44.6 | Accuracy (%) | 87.5 |
| LisanBench | 0.21 | Mean Path Length / Current Maximum | 85.6 |
| AA Omniscience - Science, Engineering & Mathematics | 44.4 | Accuracy (%) | 85.4 |
| AA Omniscience - Law | 36.3 | Accuracy (%) | 85.2 |
| AA Humanity's Last Exam | 33.27 | Accuracy (%) | 84.2 |
| AA Omniscience - Business | 33.5 | Accuracy (%) | 83.4 |
Interactive version: theaggregate.ai/model?slug=gpt-5-6-terra-medium · How It Works · Data refreshed daily, snapshot 2026-09-05.