SciR - Deduction Hard (Obfuscated): leaderboard

Accuracy on the 200 hard deduction tasks over developmental-biology lineage syllogisms with three-way answers, rendered as obfuscated multi-document scientific discourse (lab notes, drug labels, records and tables), from SciR (2026), a scientific-reasoning benchmark generated from formal objects. The model reasons by chain of thought at temperature 0 and answers are checked against the generating object. Higher is better.

Metric: Accuracy (%) on the 200 hard-tier SciR deduction tasks (deduction over developmental-biology lineage syllogisms (3-way answer)), rendered as obfuscated multi-document scientific discourse (Obf: lab notes, drug labels, records and tables); the model reasons with chain-of-thought directly from the task text, temperature 0; answers are checked against the generating formal object; higher is better. Source: arxiv.org. Saturation forecast: Around February 2027. 6 models tracked.

Top models

#ModelScoreOverall rank
1DeepSeek R156.5#473
2Qwen 3 30B A3B 2507 Instruct39#1089
3GPT-4o33.5#741
4Llama 3.3 70B Instruct30#1357
5OLMo 3.1 32B Instruct30#2384

No result here: #1 Claude Fable 5.2, #2 Gemini 4 Carbon, #5 Claude Opus 5.5.

Interactive version: theaggregate.ai/benchmark?slug=scir-deduction-hard-obfuscated · How It Works · Data refreshed daily, snapshot 2026-11-13.