GPT-5 Nano (Low): benchmark results
GPT-5 Nano evaluated at the low reasoning-effort setting. Provider: OpenAI. Released 2025-08-07. Access: API.
Unified ELO 1515 ± 1, rank #771 of 1761 rated models, from 16 benchmark results.
Strongest benchmark results
| Benchmark | Score | Metric | Percentile |
|---|---|---|---|
| SLR-Bench - Basic | 100 | Accuracy (%) | 86.4 |
| FormationEval | 93.3 | Accuracy (%) | 57 |
| Chess Puzzles (Epoch AI) | 15 | Accuracy (%) | 52.7 |
| OTIS Mock AIME 2024-25 | 46.67 | Accuracy (%) | 35.1 |
| LLM Chess (Saplin) | -117 | ELO | 34.8 |
| Epoch AI - Mystery Game Puzzles | 9 | Score | 19 |
| SLR-Bench - Easy | 48 | Accuracy (%) | 18.2 |
| SLR-Bench - Hard | 1 | Accuracy (%) | 15.5 |
| WeirdML | 25.89 | Average Score | 14.6 |
| SLR-Bench - Medium | 2 | Accuracy (%) | 11.8 |
| MathArena - AIME 2025 | 47.22 | Accuracy (%) | 11.5 |
| IH-Benchmark | 56.7 | Overall Compliance (%) | 11.1 |
Interactive version: theaggregate.ai/model?slug=gpt-5-nano-low · How It Works · Data refreshed daily, snapshot 2026-09-05.