Olfactory Perception Benchmark - Odor Primary Descriptor: leaderboard
Metric: Score (%) on odor primary descriptor identification (one of four options, 175 molecules from the IFRA glossary; any-overlap accuracy) of the 1,010 questions of the Olfactory Perception (OP) benchmark presented with compound-name prompts (the isomeric SMILES variant is reported only in figures), constrained option lists, provider APIs without web search or tools, each model at its stated reasoning effort or thinking budget; higher is better. Source: arxiv.org. Saturation forecast: Around January 2027. 21 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Claude Opus 4.6 (High) | 78.3 |
| 2 | Claude Opus 4.6 (Max) | 77.7 |
| 3 | Claude Opus 4.5 (High) | 76.6 |
| 4 | GPT-5 (High) | 73.7 |
| 5 | GPT-5 Pro | 73.1 |
| 6 | Grok 3 Mini (Low) | 73.1 |
| 7 | GPT-5 (Low) | 72 |
| 8 | Grok 3 Mini (High) | 72 |
| 9 | O3 (High) | 70.9 |
| 10 | Claude Sonnet 4.5 | 67.4 |
| 11 | Grok 4.1 Fast | 67.4 |
| 12 | O4 Mini (High) | 65.7 |
| 13 | Llama 3.3 70B Instruct | 60.6 |
| 14 | GPT-OSS-120B (High) | 60.6 |
Interactive version: theaggregate.ai/benchmark?slug=olfactory-perception-benchmark-odor-primary-descriptor · How It Works · Data refreshed daily, snapshot 2026-10-07.