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

Finding on 'Q024 Probe' for Claude Sonnet 4.6 with web search ON

RLB Citation ID: RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q024-Sonnet46

What the RLB Specialist Panel found

Finding on 'Q024 Probe' for Claude Sonnet 4.6 with web search ON

Question (paraphrased to protect IP): What specific findings, including verbatim text, does the CPMI-IOSCO Level 3 monitoring assessment on general business risks contain regarding FMI compliance with the 6-month LNAFE standard?
AI's response: "I do not have verbatim access to d228. I cannot retrieve or reproduce specific verbatim text, exact paragraph references, or precise quotations from the d228 PDF itself."
Regulator's text: [Not provided — verbatim-access question]
Why the AI went wrong: The model correctly declined to produce verbatim content from a November 2025 document it could not retrieve. The refusal is appropriately scoped. The cited URL maps to the d228 PDF directly — as with parallel findings, citing an acknowledged-inaccessible source is a minor inconsistency in an otherwise well-calibrated refusal.
Cited source(s):
https://www.bis.org/cpmi/publ/d228.pdf — Pretextual

Impact for this audience

Well-calibrated refusal with citation-alongside-refusal. The parallel with the Opus 4.7 finding on the same question confirms the cross-model consistency of this pattern for the d228 document specifically — a document that is formally published but not retrievable as text, which places it in a category that should be specifically represented in retrieval-failure eval probes.

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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-Q024-Sonnet46

Plain text Download

RegLeg Specialist Panel (2026). "Finding on 'Q024 Probe' for Claude Sonnet 4.6 with web search ON — AI Labs." Citation ID: RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q024-Sonnet46. 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-l3-024--sonnet-46-websearch/

APA 7th edition Download

RegLeg Specialist Panel. (2026). Finding on 'Q024 Probe' for Claude Sonnet 4.6 with web search ON [Hallucination finding RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q024-Sonnet46]. 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-l3-024--sonnet-46-websearch/

Bluebook / OSCOLA (US + UK legal) Download

RegLeg Specialist Panel, Finding on 'Q024 Probe' for Claude Sonnet 4.6 with web search ON [RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q024-Sonnet46], 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-l3-024--sonnet-46-websearch/.

BibTeX Download

@misc{reglegbrief_RLB_H_INT_BIS_CPMI_IOSCO_PFMI_2012_Q024_Sonnet46,
  author    = {RegLeg Specialist Panel},
  title     = {Finding on 'Q024 Probe' for Claude Sonnet 4.6 with web search ON},
  year      = {2026},
  publisher = {RegLegBrief AI Hallucination Research},
  note      = {Hallucination finding Citation ID: RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q024-Sonnet46},
  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-l3-024--sonnet-46-websearch/}
}

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Every finding on this page compares an AI subject's account of the rule against the regulator's verbatim text from the regulator's own portal. Both are linked. Each delta, its root causes, and impact analysis are documented and published with immutable Citation IDs.