Economists Flag New Paper on Why LLM Hallucinations Persist

In one line: Economist Writing Every Day, a group blog written by economists, says a paper on persistent hallucinations in large language models has been formally published.

Key points

• The post went up on October 17, 2026 (GMT) under the title "Paper Published on Persistent LLM Hallucinations."
• The paper is about hallucinations that persist: models keep producing confident but false or made-up information.
• The RSS summary does not give the authors, the journal, the models tested or any numbers. Readers should check the original post for those details.
• The blog is run by economics researchers, so the work likely looks at LLM use in accuracy-critical academic tasks such as citing the literature.

Why it matters

If a peer-reviewed study finds that hallucinations persist from one model generation to the next, that strengthens the case that they are a structural limitation, not a bug a single update can fix. Anyone using AI for research or reports should keep checking sources and citations themselves.

Read more

• Paper Published on Persistent LLM Hallucinations — Economist Writing Every Day