{
  "id": 7691966,
  "title": "Diagnosing the Fact-Grounding Gap in Multi-Hop Question Answering",
  "url": "https://urgent.news/2026/09/15/diagnosing-the-fact-grounding-gap-in-multi-hop-question-answering",
  "topic": "health",
  "section": "Health & Medicine",
  "published": "2026-09-15T11:51:52.000Z",
  "source": {
    "name": "arXiv cs.AI",
    "slug": "arxiv-cs-ai",
    "url": "https://arxiv.org/abs/2609.17043v1"
  },
  "original_language": "en",
  "account": null,
  "summary": "Multi-hop question answering requires combining information from multiple documents to answer complex questions. These systems have grown increasingly capable, yet when they fail, the error is typically attributed to not finding the right documents. Whether this holds at the level of individual reasoning steps remains largely unexamined. We investigate this across three standard multi-hop QA…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}