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AI Labs · Last updated 7 Jun 2026 · methodology vv2.3 · Hallucination Register

Finding on 'Q022 Probe' for Claude Opus 4.7 with web search ON

RLB Citation ID: RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q022-Opus47
What the RLB Specialist Panel found

Finding on 'Q022 Probe' for Claude Opus 4.7 with web search ON

  • Question (paraphrased to protect IP): PFMI Principle 2 KC 6, non-executive risk-committee chair mandate fabricated
  • AI's response: "KC 2.6 contemplates that the board establish a risk committee that is chaired by a suitably qualified, non-executive member"
  • Regulator's text: KC 6: The board should establish a clear, documented risk-management framework... Governance arrangements should ensure that the risk-management and internal control functions have sufficient authority, independence, resources, and access to the board.
  • Why the AI went wrong: On PFMI Principle 2's Key Consideration 6, Claude Opus 4.7 with web search asserted that the board should establish "a risk committee that is chaired by a suitably qualified, non-executive member," and accompanied this with an inverted KC ordering and a misattribution of KC 5's management-roles content to internal-control requirements. The fabricated non-executive-chair mandate is the kind of high-confidence structured hallucination that an FMI board secretary or governance lead drafting a committee charter would absorb directly into the document, because the surface form looks like a PFMI self-assessment response. The error reflects a training-weighted prior on corporate-governance committee structure (drawn from listing rules, banking-supervision codes, and conventional governance frameworks) substituted for the PFMI's framework-level KC 6 text, which speaks only to the documented risk-management framework and the independence of control functions. Verbatim paragraph probes across the Principle 2 KCs, with structured comparison against generic corporate-governance language, would directly target this class of error.
  • Citation ID: RLB-F-INT-BIS-CPMI-IOSCO-PFMI-2012-Q022
  • Cited source(s):
Impact for this audience

On PFMI Principle 2's Key Consideration 6, Claude Opus 4.7 with web search asserted that the board should establish "a risk committee that is chaired by a suitably qualified, non-executive member," and accompanied this with an inverted KC ordering and a misattribution of KC 5's management-roles content to internal-control requirements. The fabricated non-executive-chair mandate is the kind of high-confidence structured hallucination that an FMI board secretary or governance lead drafting a committee charter would absorb directly into the document, because the surface form looks like a PFMI self-assessment response.

The error reflects a training-weighted prior on corporate-governance committee structure (drawn from listing rules, banking-supervision codes, and conventional governance frameworks) substituted for the PFMI's framework-level KC 6 text, which speaks only to the documented risk-management framework and the independence of control functions. Verbatim paragraph probes across the Principle 2 KCs, with structured comparison against generic corporate-governance language, would directly target this class of error.

References — raw findings (per AI model)
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Cite this finding

Each finding has a stable Citation ID (RLB-F-… for aggregated case-study findings, RLB-H-… for raw per-model hallucinations) — like a DOI, the ID always resolves to the canonical finding even if URLs change.

RLB Citation ID: RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q022-Opus47
Plain text Download 
RegLeg Specialist Panel (2026). "Finding on 'Q022 Probe' for Claude Opus 4.7 with web search ON — AI Labs." Citation ID: RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q022-Opus47. RegLegBrief AI Hallucination Research, published 2026-06-07. https://reglegbrief.com/regulators/j1/int/bis-cpmi/cpmi-iosco-pfmi-2012/whitepaper/finding/INT-BIS-CPMI-INT-001-CPMI-IOSCO-PFMI-2012-v1-022--opus-47-websearch/
APA 7th edition Download 
RegLeg Specialist Panel. (2026). Finding on 'Q022 Probe' for Claude Opus 4.7 with web search ON [Hallucination finding RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q022-Opus47]. RegLegBrief AI Hallucination Research. https://reglegbrief.com/regulators/j1/int/bis-cpmi/cpmi-iosco-pfmi-2012/whitepaper/finding/INT-BIS-CPMI-INT-001-CPMI-IOSCO-PFMI-2012-v1-022--opus-47-websearch/
Bluebook / OSCOLA (US + UK legal) Download 
RegLeg Specialist Panel, Finding on 'Q022 Probe' for Claude Opus 4.7 with web search ON [RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q022-Opus47], RegLegBrief AI Hallucination Research (June 07, 2026), https://reglegbrief.com/regulators/j1/int/bis-cpmi/cpmi-iosco-pfmi-2012/whitepaper/finding/INT-BIS-CPMI-INT-001-CPMI-IOSCO-PFMI-2012-v1-022--opus-47-websearch/.
BibTeX Download 
@misc{reglegbrief_RLB_H_INT_BIS_CPMI_IOSCO_PFMI_2012_Q022_Opus47,
  author    = {RegLeg Specialist Panel},
  title     = {Finding on 'Q022 Probe' for Claude Opus 4.7 with web search ON},
  year      = {2026},
  publisher = {RegLegBrief AI Hallucination Research},
  note      = {Hallucination finding Citation ID: RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q022-Opus47},
  url       = {https://reglegbrief.com/regulators/j1/int/bis-cpmi/cpmi-iosco-pfmi-2012/whitepaper/finding/INT-BIS-CPMI-INT-001-CPMI-IOSCO-PFMI-2012-v1-022--opus-47-websearch/}
}
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