{
  "id": 6561814,
  "title": "How wrong is a model about a company when it has no register to check?",
  "url": "https://urgent.news/2026/09/10/how-wrong-is-a-model-about-a-company-when-it-has-no-register-to-check",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-09-10T08:16:03.000Z",
  "source": {
    "name": "Dev.to",
    "slug": "dev-to",
    "url": "https://dev.to/fargeroddotcom/how-wrong-is-a-model-about-a-company-when-it-has-no-register-to-check-27c2"
  },
  "original_language": "en",
  "account": "A recent study examined how well a model performs when given three national company registers - Brønnøysundregistrene, Companies House, and Bolagsverket - to verify information. The pitch behind the model was that without a register, an agent could confidently provide incorrect answers. To test this, the study used the claude-sonnet-5 model and conducted 45 calls with hand-written prompts.\n\nWithout using the registers, the model answered 8 correctly, 3 incorrectly (confidently or dangerously), and 34 hedged. It hesitated and provided unsourced answers on 13% of the trials. When the registers were used, the model answered 18 correctly and 4 incorrectly, with 27 hedging and 4 producing unsourced answers.\n\nHowever, the study found that the register's main benefit is not accuracy, but provenance - the ability to claim that an answer is backed by a reliable source. The model demonstrated this when it correctly stated that Companies House does not publish VAT registration data for a UK company, even though it could not verify the record. The no-tools arm (no access to registers) also made the same mistake, showing that the register only buys provenance, not accuracy.",
  "summary": "registry-mcp puts three national company registers behind one MCP tool — Brønnøysundregistrene / Enhetsregisteret ( brreg ) by organisasjonsnummer (orgnr, org.nr), Companies House by company number, and Bolagsverket by organisationsnummer. The pitch has always rested on a counterfactual: without a register, an agent answers company questions confidently and wrongly. That is an easy thing to…",
  "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."
}