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AI Labs · updated 2026-05-29 · methodology v2.1

Finding on 'Q023 Probe' for Claude Opus 4.7 with web search ON

RLB Citation ID: RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q023-Opus47
What the RLB Specialist Panel found

Finding on 'Q023 Probe' for Claude Opus 4.7 with web search ON

  • Question (paraphrased to protect IP): What are the specific contents, thresholds, and cross-references in the CPMI-IOSCO consultative report on CCP resilience and recovery (August 2016)?
  • AI's response: "I do not have reliable verbatim recall of the body text of d149…I cannot, however, quote verbatim text, specific paragraph numbers, exact thresholds, or named entities from inside the d149 PDF without fabricating, so I will not."
  • Regulator's text: [Not provided — verbatim-access question]
  • Why the AI went wrong: The model correctly declined to fabricate verbatim content it could not retrieve, demonstrating appropriate calibration on the boundary between recalled knowledge and invented text. This is a well-formed refusal. No citation errors were produced.
  • Cited source(s):
Impact for this audience

Well-calibrated refusal. The model correctly identified the verbatim-access boundary and declined to fabricate. This finding is evidence that the model has a functioning refusal mechanism for verbatim-recall requests — the failure modes in other findings are not a simple calibration deficit but are specific to content-claim generation where the model does not frame its response as a verbatim-recall request.

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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-Q023-Opus47
Plain text Download 
RegLeg Specialist Panel (2026). "Finding on 'Q023 Probe' for Claude Opus 4.7 with web search ON — AI Labs." Citation ID: RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q023-Opus47. RegLegBrief AI Hallucination Research, published 2026-05-29. https://reglegbrief.com/regulators/j1/int/bis-cpmi/cpmi-iosco-pfmi-2012/whitepaper/finding/INT-BIS-CPMI-INT-001-CPMI-IOSCO-PFMI-2012-v1-l3-023--opus-47-websearch/
APA 7th edition Download 
RegLeg Specialist Panel. (2026). Finding on 'Q023 Probe' for Claude Opus 4.7 with web search ON [Hallucination finding RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q023-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-l3-023--opus-47-websearch/
Bluebook / OSCOLA (US + UK legal) Download 
RegLeg Specialist Panel, Finding on 'Q023 Probe' for Claude Opus 4.7 with web search ON [RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q023-Opus47], RegLegBrief AI Hallucination Research (May 29, 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-l3-023--opus-47-websearch/.
BibTeX Download 
@misc{reglegbrief_RLB_H_INT_BIS_CPMI_IOSCO_PFMI_2012_Q023_Opus47,
  author    = {RegLeg Specialist Panel},
  title     = {Finding on 'Q023 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-Q023-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-l3-023--opus-47-websearch/}
}
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