BadScientist: Can a Research Agent Write Convincing but Unsound Papers that Fool LLM Reviewers?

TL;DR

This paper demonstrates that AI-generated research papers can deceive current AI peer review systems, exposing vulnerabilities and highlighting the need for more robust safeguards in scientific publishing.

Contribution

It introduces BadScientist, a framework for generating fabricated papers that can fool AI reviewers, and provides a rigorous evaluation revealing systemic vulnerabilities.

Findings

Fabricated papers achieve high acceptance rates

Reviewers often accept papers despite flagging integrity issues

Detection of fabricated papers remains near random chance

Abstract

The convergence of LLM-powered research assistants and AI-based peer review systems creates a critical vulnerability: fully automated publication loops where AI-generated research is evaluated by AI reviewers without human oversight. We investigate this through \textbf{BadScientist}, a framework that evaluates whether fabrication-oriented paper generation agents can deceive multi-model LLM review systems. Our generator employs presentation-manipulation strategies requiring no real experiments. We develop a rigorous evaluation framework with formal error guarantees (concentration bounds and calibration analysis), calibrated on real data. Our results reveal systematic vulnerabilities: fabricated papers achieve acceptance rates up to . Critically, we identify \textit{concern-acceptance conflict} -- reviewers frequently flag integrity issues yet assign acceptance-level scores. Our mitigation strategies show only marginal improvements, with detection accuracy barely exceeding random chance. Despite provably sound aggregation mathematics, integrity checking systematically fails, exposing fundamental limitations in current AI-driven review systems and underscoring the urgent need for defense-in-depth safeguards in scientific publishing.