GPT-5.1 Instant — benchmark results
OpenAI's fast GPT-5.1 Instant tier for low-latency chat. Provider: OpenAI. Released 2025-11-12. Access: API.
Unified ELO 1636 ± 19, rank #399 of 1776 rated models, from 50 benchmark results.
Strongest benchmark results
| Benchmark | Score | Metric | Percentile |
|---|---|---|---|
| ZeroEval GPQA Diamond | 88.1 | GPQA Diamond Score | 86.5 |
| AA Omniscience - Health | 30.8 | Accuracy (%) | 81.9 |
| AA Omniscience - Law | 24.9 | Accuracy (%) | 81 |
| AA Omniscience - Business | 26.5 | Accuracy (%) | 79.9 |
| AA-Omniscience Accuracy | 29.07 | Accuracy (%) | 77.7 |
| AA Omniscience - Software Engineering (SWE) - Julia | 28 | Accuracy (%) | 75.6 |
| AA Omniscience - Humanities & Social Sciences | 28.3 | Accuracy (%) | 75.4 |
| AA Omniscience - Software Engineering (SWE) - PHP | 40 | Accuracy (%) | 75 |
| AA Omniscience - Software Engineering (SWE) - Swift | 52 | Accuracy (%) | 74.8 |
| AA Omniscience - Software Engineering (SWE) - Java | 26 | Accuracy (%) | 74.7 |
| AA Omniscience - Software Engineering (SWE) - Python | 33 | Accuracy (%) | 74.1 |
| Epoch AI - ECI | 149.74 | ECI Score | 73.9 |
Interactive version: theaggregate.ai/model?slug=gpt-5-1-instant · How the rankings work · Data refreshed daily, snapshot 2026-07-22.