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

Finding on 'Q025 Probe' for Claude Sonnet 4.6 with web search ON

RLB Citation ID: RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q025-Sonnet46

What the RLB Specialist Panel found

Finding on 'Q025 Probe' for Claude Sonnet 4.6 with web search ON

Question (paraphrased to protect IP): What specific content, key announcements, and named entities does the July 2022 BIS press release on the CPMI-IOSCO guidance for stablecoin arrangements contain?
AI's response: "I do not have verbatim access to the specific BIS press release page at https://www.bis.org/press/p220713.htm… I cannot provide verbatim text, exact quotes, named entities referenced, or specific paragraph cross-references from the press release page itself."
Regulator's text: [Not provided — verbatim-access question]
Why the AI went wrong: The model correctly declined to produce verbatim content from a specific BIS press release it acknowledged it could not access. The refusal is appropriately scoped and no fabrication occurred. The cited URL maps to the acknowledged-inaccessible page, consistent with the pattern of citing sources alongside admissions of inaccessibility seen across this model's refusal findings.
Cited source(s):
https://www.bis.org/press/p220713.htm — Pretextual

Impact for this audience

Well-calibrated refusal with citation-alongside-refusal. The BIS press release format (press/p######.htm) is a specific URL pattern the model cites while acknowledging it cannot access the page — useful signal for testing whether the citation generator can be grounded against actual HTTP resolution status.

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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-Q025-Sonnet46

Plain text Download

RegLeg Specialist Panel (2026). "Finding on 'Q025 Probe' for Claude Sonnet 4.6 with web search ON — AI Labs." Citation ID: RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q025-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-l3-025--sonnet-46-websearch/

APA 7th edition Download

RegLeg Specialist Panel. (2026). Finding on 'Q025 Probe' for Claude Sonnet 4.6 with web search ON [Hallucination finding RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q025-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-l3-025--sonnet-46-websearch/

Bluebook / OSCOLA (US + UK legal) Download

RegLeg Specialist Panel, Finding on 'Q025 Probe' for Claude Sonnet 4.6 with web search ON [RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q025-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-l3-025--sonnet-46-websearch/.

BibTeX Download

@misc{reglegbrief_RLB_H_INT_BIS_CPMI_IOSCO_PFMI_2012_Q025_Sonnet46,
  author    = {RegLeg Specialist Panel},
  title     = {Finding on 'Q025 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-Q025-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-l3-025--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.