AI Hallucination Research › Regulators › Major advanced economies › US › CFTC › FCM-MARGIN-ADEQUACY-SEPARATE-ACCOUNTS-REG-1-44 › White paper › Detail › Finding
AI Labs · updated 2026-06-06 · methodology v2.1

Finding on 'Q002 Probe' for Claude Opus 4.7 with web search ON

RLB Citation ID: RLB-H-US-CFTC-FCM-MARGIN-ADEQUACY-SEPARATE-ACCOUNTS-REG-1-44-Q002-Opus47
What the RLB Specialist Panel found

Finding on 'Q002 Probe' for Claude Opus 4.7 with web search ON

  • Question (paraphrased to protect IP): An FCM compliance team is drafting operational procedures for Regulation 1.44 separate account treatment. Identify the full set of regulatory triggers requiring the FCM to immediately cease separate account treatment for a customer — covering both customer-specific and FCM-wide cessation events.
  • AI's response: "OPERATIONS CHECKLIST — Cessation triggers (any one is sufficient): [ ] 1. Failure to meet a margin call on time... [ ] 7. Customer request to cease."
  • Regulator's text: Three FCM-specific cessation events: (1) regulator notification of FCM distress; (2) FCM's own internal determination of distress; (3) FCM or parent company insolvency/bankruptcy.
  • Why the AI went wrong: The model produced a well-formatted compliance checklist that substituted customer-facing margin-call events for the FCM-level cessation triggers the regulation enumerates. None of the three FCM-specific events — regulator notification of distress, internal distress determination, or insolvency — appeared in the output. The checklist is structurally plausible as a margin-operations procedure but maps to a different section of regulatory logic than the question specifies, suggesting the model reconstructed from a generic FCM-compliance pattern rather than Regulation 1.44's specific enumeration.
  • Cited source(s):
Impact for this audience

The model's substitution of a margin-call checklist for FCM-level cessation events implicates the training-data representation of recently enacted CFTC rules specifically: the model's prior for 'FCM cessation checklist' is drawn from margin-operations templates rather than Regulation 1.44's regulatory-distress provisions. The retrieval layer returned no primary-text content that corrected the generation, which could indicate either that the FCM-level cessation section was absent from retrieved content or that the generation pathway weighted the operational-prior reconstruction over retrieved primary text. Either gap is addressable at the retrieval-routing or training-pair level.

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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-US-CFTC-FCM-MARGIN-ADEQUACY-SEPARATE-ACCOUNTS-REG-1-44-Q002-Opus47
Plain text Download 
RegLeg Specialist Panel (2026). "Finding on 'Q002 Probe' for Claude Opus 4.7 with web search ON — AI Labs." Citation ID: RLB-H-US-CFTC-FCM-MARGIN-ADEQUACY-SEPARATE-ACCOUNTS-REG-1-44-Q002-Opus47. RegLegBrief AI Hallucination Research, published 2026-06-06. https://reglegbrief.com/regulators/j3/us/cftc/fcm-margin-adequacy-separate-accounts-reg-1-44/whitepaper/finding/US-CFTC-US-001-FCM-MARGIN-ADEQUACY-SEPARATE-ACCOUNTS-REG-1-44-v1-002--opus-47-websearch/
APA 7th edition Download 
RegLeg Specialist Panel. (2026). Finding on 'Q002 Probe' for Claude Opus 4.7 with web search ON [Hallucination finding RLB-H-US-CFTC-FCM-MARGIN-ADEQUACY-SEPARATE-ACCOUNTS-REG-1-44-Q002-Opus47]. RegLegBrief AI Hallucination Research. https://reglegbrief.com/regulators/j3/us/cftc/fcm-margin-adequacy-separate-accounts-reg-1-44/whitepaper/finding/US-CFTC-US-001-FCM-MARGIN-ADEQUACY-SEPARATE-ACCOUNTS-REG-1-44-v1-002--opus-47-websearch/
Bluebook / OSCOLA (US + UK legal) Download 
RegLeg Specialist Panel, Finding on 'Q002 Probe' for Claude Opus 4.7 with web search ON [RLB-H-US-CFTC-FCM-MARGIN-ADEQUACY-SEPARATE-ACCOUNTS-REG-1-44-Q002-Opus47], RegLegBrief AI Hallucination Research (June 06, 2026), https://reglegbrief.com/regulators/j3/us/cftc/fcm-margin-adequacy-separate-accounts-reg-1-44/whitepaper/finding/US-CFTC-US-001-FCM-MARGIN-ADEQUACY-SEPARATE-ACCOUNTS-REG-1-44-v1-002--opus-47-websearch/.
BibTeX Download 
@misc{reglegbrief_RLB_H_US_CFTC_FCM_MARGIN_ADEQUACY_SEPARATE_ACCOUNTS_REG_1_44_Q002_Opus47,
  author    = {RegLeg Specialist Panel},
  title     = {Finding on 'Q002 Probe' for Claude Opus 4.7 with web search ON},
  year      = {2026},
  publisher = {RegLegBrief AI Hallucination Research},
  note      = {Hallucination finding Citation ID: RLB-H-US-CFTC-FCM-MARGIN-ADEQUACY-SEPARATE-ACCOUNTS-REG-1-44-Q002-Opus47},
  url       = {https://reglegbrief.com/regulators/j3/us/cftc/fcm-margin-adequacy-separate-accounts-reg-1-44/whitepaper/finding/US-CFTC-US-001-FCM-MARGIN-ADEQUACY-SEPARATE-ACCOUNTS-REG-1-44-v1-002--opus-47-websearch/}
}
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