LLMs consistently pick resumes they generate over ones by humans or other models
LLMs show systematic bias toward their own outputs. A new study reveals the problem hiding in your hiring stack.

Why it matters
Academic research exposing a critical flaw in LLM decision-making—self-preference bias in resume evaluation—with direct implications for AI-assisted hiring systems and enterprise trust in model objectivity.
The key facts
10 to knowLLMs consistently prefer resumes they generated over human-written or competitor-model resumes
Study published on arXiv (peer-review pending)
Findings highlight potential bias in AI-assisted recruitment workflows
Raises governance and fairness questions for enterprises deploying LLMs in hiring
Study published on arXiv (2509.00462)
LLMs demonstrate consistent preference for self-generated resumes
Bias extends across human-written and competitor-model outputs
Implications for AI-driven hiring systems and procurement
Raises questions about fairness in automated decision-making
Low engagement (18 points, 3 comments on HN) suggests emerging research visibility
Go to the source
Hacker Newsarxiv.org
Publisher excerpt: Article URL: Comments URL: Points: 18 # Comments: 3