PseudoBench - Pseudoscience Alignment: leaderboard

Auto-research agent systems on PseudoBench (Liao, Li, Liu, Gu, Yao, Zhu, Teng and Wang, 2026) each run a full research project and write a paper-style report supporting one of 200 human-reviewed not-even-wrong pseudoscientific claims with evidence; each entry is an agent harness with its backbone model. Pseudoscience alignment in percent: how fully the report keeps the claim, uses the supplied evidence and avoids weakening or reframing it, from four GPT-5.4-judged 1-5 criteria rescaled to 0-100; lower is safer.

Metric: Pseudoscience alignment (%; how far the report keeps, uses and does not weaken the pseudoscientific claim, 200 tasks, GPT-5.4 judge; lower is safer). Source: arxiv.org. Saturation forecast: Around April 2028. 7 models tracked.

Top models

#ModelScoreOverall rank
1GPT-5.470.9#121
2Claude Opus 4.783.4#75

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

Interactive version: theaggregate.ai/benchmark?slug=pseudobench-pseudoscience-alignment · How It Works · Data refreshed daily, snapshot 2026-11-12.