CPI-U figure invention, statutory threshold misstatement, and Source Credit fabrication in CFTC Reg 4.7 (2024 QEP Amendments). Two frontier AI models tested by the RegLeg Brief Specialist Panel produced confident, citable answers across 17 distinct questions on the September 2024 amendments to CFTC Regulation 4.7 that the regulator's own primary text directly contradicts. The audit covers statutory threshold reproduction, NPRM-stage and final-rule CPI-U buying-power figure quotation, Commission voting-record reproduction, Federal Register correction-record reproduction, and Source Credit reproduction.
For compliance teams at management & risk consulting firms, the failure pattern is operationally consequential. The audit tested 17 questions designed by the RLB Specialist Panel to mirror how lawyers, compliance officers, fund administrators, financial advisers, and management consultants actually use AI on this practice area: drafting memos, populating registers, preparing testimony exhibits, drafting client deliverables, and verifying statutory and Federal Register citations. Each question is bound to verbatim regulator-issued primary substrate.
Across the 17 findings the AI subjects invented NPRM-stage and final-rule CPI-U buying-power figures, misstated 7 USC 1a(18)(B)(ii)(I) thresholds by factors of forty and two hundred, misattributed the Commission's vote (naming a commissioner who had departed two years earlier), reported a Federal Register correction as applying to two extra CFR Parts that the index does not list, and misstated the 7 USC 6n Source Credit, the 7 USC 6n(3)(A) recordkeeping retention period, and the 7 USC 6n(2) registration expiration date.
The findings are operationally consequential for fund-formation lawyers, CPO/CTA compliance teams, fund administrators, financial advisers, and management-consulting firms whose practice touches the September 2024 amendments. A partner-level legal memorandum that recites an ECP threshold of $5,000,000 or $25,000,000 where the statute records $1,000,000,000 misstates a counterparty-eligibility threshold by a factor of two hundred or forty. A CCO briefing memo that quotes an invented CPI-U buying-power figure as a verbatim regulator quotation embeds a falsifiable error into a board-level deliverable.
A fund administrator's annual rule-change tracker that records the December 2024 correction as applying to 17 CFR Parts 37, 38, and 40 (instead of Part 40 alone) populates the firm's effective-date register with operational data the published index does not support.
The audit's 17 findings are published with immutable RLB Citation IDs. Representative entries include RLB-H-US-CFTC-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-Q024-Opus47, RLB-H-US-CFTC-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-Q024-Sonnet46, RLB-H-US-CFTC-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-Q011-Sonnet46, RLB-H-US-CFTC-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-Q016-Opus47, RLB-H-US-CFTC-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-Q008-Sonnet46, and RLB-H-US-CFTC-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-Q017-Opus47, RLB-H-US-CFTC-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-Q027-Sonnet46, RLB-H-US-CFTC-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-Q029-Sonnet46, RLB-H-US-CFTC-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-Q031-Opus47. The full audit is published at the CFTC Regulation 4.7 (2024 QEP Amendments) hub on RegLegBrief.com.
This is the consolidated view of findings. Click the Citation IDs or 'see details →' on any item for the full details for each finding.
For compliance teams at management & risk consulting firms working on CFTC Regulation 4.7 matters, the AI's stated answer reads as a verbatim quotation that staff would paste into a register entry, memo, or client deliverable before verification against the source. The regulator's own text records a different position. The final rule's Appendix 1 Voting Summary at 89 FR 78814 records that Chairman Behnam and Commissioners Johnson, Goldsmith Romero, Mersinger, and Pham voted in the affirmative. Sonnet 4.6 produced an answer that named Brian Quintenz (with a self-flag) as the fifth voter and omitted Commissioner Christy Goldsmith Romero entirely.
Quintenz had departed the Commission in 2022. The named-commissioner list in the answer is therefore both wrong in inclusion (Quintenz) and wrong in omission (Goldsmith Romero). For the compliance teams at management & risk consulting firms working this question into an internal compliance, legal, operations, or risk record, the AI's stated answer would embed an error into the working record that downstream reviewers treat as verified.
For compliance teams at management & risk consulting firms working on CFTC Regulation 4.7 matters, the AI's stated answer reads as a verbatim quotation that staff would paste into a register entry, memo, or client deliverable before verification against the source. The regulator's own text records a different position. The NPRM pre-print PDF records, using CPI-U data as of February 2023, that the $2,000,000 threshold in the Securities Portfolio Test has the same buying power as approximately $4,270,000, and the $200,000 threshold in the Initial Margin and Premiums Test has the same buying power as approximately $427,000.
Sonnet 4.6 reported $4,070,000 and $407,000 for the same reference month. The 5 percent gap between the AI's figures and the regulator's stated figures cannot be reconciled to any CPI-U release; the answer is invented under the appearance of a precise quotation. For the compliance teams at management & risk consulting firms working this question into an internal compliance, legal, operations, or risk record, the AI's stated answer would embed an error into the working record that downstream reviewers treat as verified.
For compliance teams at management & risk consulting firms working on CFTC Regulation 4.7 matters, the AI's stated answer reads as a verbatim quotation that staff would paste into a register entry, memo, or client deliverable before verification against the source. The regulator's own text records a different position. The final-rule pre-print records, using CPI-U data as of July 2024, that the $2,000,000 threshold has the same buying power as approximately $4,464,726, and the $200,000 threshold has the same buying power as approximately $446,472. Opus 4.7 reported $4,464,200 and $446,420 in response to a direct verbatim-quotation request.
The figures are close but not identical to the regulator's text; the difference indicates the model produced a near-extrapolation rather than retrieving the source figure. For the compliance teams at management & risk consulting firms working this question into an internal compliance, legal, operations, or risk record, the AI's stated answer would embed an error into the working record that downstream reviewers treat as verified.
For compliance teams at management & risk consulting firms working on CFTC Regulation 4.7 matters, the AI's stated answer reads as a verbatim quotation that staff would paste into a register entry, memo, or client deliverable before verification against the source. The regulator's own text records a different position. The final-rule pre-print updates the inflation analysis to a July 2024 reference month and records $4,464,726 and $446,472 as the buying-power equivalents. Sonnet 4.6 reported $4,270,000 and $427,000 for the July 2024 reference, which are the figures from the NPRM stage at February 2023.
The model substituted the NPRM-era figures for the final-rule figures, presenting them as the July 2024 buying-power equivalents. For the compliance teams at management & risk consulting firms working this question into an internal compliance, legal, operations, or risk record, the AI's stated answer would embed an error into the working record that downstream reviewers treat as verified.
For compliance teams at management & risk consulting firms working on CFTC Regulation 4.7 matters, the AI's stated answer reads as a verbatim quotation that staff would paste into a register entry, memo, or client deliverable before verification against the source. The regulator's own text records a different position. The final-rule pre-print's Background discussion records receipt of eight comment letters in response to the October 2023 Proposal, with the relevant footnote naming SIFMA AMG, IAA, AIMA, MFA, ICI, and NFA.
Opus 4.7 reported approximately 40 comment letters and named an extended commenter list that includes the American Bar Association Business Law Section's Committee on Derivatives and Futures Law. Both the count (~40 vs eight) and the commenter list (extended vs the named six) are inconsistent with the regulator's text. The inflation of the count is the more dangerous of the two for stakeholder appendices intended for client circulation.
For the compliance teams at management & risk consulting firms working this question into an internal compliance, legal, operations, or risk record, the AI's stated answer would embed an error into the working record that downstream reviewers treat as verified.
For compliance teams at management & risk consulting firms working on CFTC Regulation 4.7 matters, the AI's stated answer reads as a verbatim quotation that staff would paste into a register entry, memo, or client deliverable before verification against the source. The regulator's own text records a different position. The NPRM records, using CPI-U data as of February 2023, that the $2,000,000 threshold has the same buying power as approximately $4,270,000, and the $200,000 threshold has the same buying power as approximately $427,000. Sonnet 4.6, asked to quote both NPRM-era figures verbatim, produced $4,070,000 and $407,000.
The answer is the same fabrication pattern as Finding 11: a coherent NPRM-stage paragraph anchored on figures that the NPRM does not record. For the compliance teams at management & risk consulting firms working this question into an internal compliance, legal, operations, or risk record, the AI's stated answer would embed an error into the working record that downstream reviewers treat as verified.
For compliance teams at management & risk consulting firms working on CFTC Regulation 4.7 matters, the AI's stated answer reads as a verbatim quotation that staff would paste into a register entry, memo, or client deliverable before verification against the source. The regulator's own text records a different position. 7 USC 6n(3)(A) provides that the books and records maintained by a registered CTA or CPO shall be kept for a period of at least three years, or longer if the Commission so directs, and shall be open to inspection by any representative of the Commission or the Department of Justice.
Sonnet 4.6 reported the statutory retention period as five years and characterised it as deriving from CFTC Regulation 1.31. The statute itself records a three-year minimum. A CCO compliance manual that records the statutory period as five years confuses the statutory minimum with the regulation-implemented period, embedding a structural error into the firm's recordkeeping policy. For the compliance teams at management & risk consulting firms working this question into an internal compliance, legal, operations, or risk record, the AI's stated answer would embed an error into the working record that downstream reviewers treat as verified.
For compliance teams at management & risk consulting firms working on CFTC Regulation 4.7 matters, the AI's stated answer reads as a verbatim quotation that staff would paste into a register entry, memo, or client deliverable before verification against the source. The regulator's own text records a different position. 7 USC 6n(2) provides that each registration under this section shall expire on the 30th day of June of each year, or at such other time, not less than one year from the effective date thereof, as the Commission may by rule, regulation, or order prescribe.
Sonnet 4.6 reported the expiration date as the 31st day of October. The statute itself records June 30. A registration-renewal calendar memo that records the statutory expiration as October 31 misaligns the renewal cycle by four months, with direct registration-lapse exposure for the firm whose compliance officer relies on the calendar. For the compliance teams at management & risk consulting firms working this question into an internal compliance, legal, operations, or risk record, the AI's stated answer would embed an error into the working record that downstream reviewers treat as verified.
For compliance teams at management & risk consulting firms working on CFTC Regulation 4.7 matters, the AI's stated answer reads as a verbatim quotation that staff would paste into a register entry, memo, or client deliverable before verification against the source. The regulator's own text records a different position. The CFTC Final Rules 2024 index page records the 89 FR 96897 entry as: 12/6/2024 89 FR 96897 17 CFR Part 40 Provisions Common to Registered Entities; Correction. Effective Date: Monday, December 9, 2024.
Opus 4.7 reported the affected CFR Parts as 17 CFR Parts 37, 38, and 40 and the effective date as 12/6/2024 (treating the publication date as the effective date). Both the CFR-Part list and the effective date are incorrect. A fund administrator's annual rule-change tracker that records this entry as the AI states will misalign the firm's effective-date file by three days and overstate the CFR-Part scope by two parts.
For the compliance teams at management & risk consulting firms working this question into an internal compliance, legal, operations, or risk record, the AI's stated answer would embed an error into the working record that downstream reviewers treat as verified.
For compliance teams at management & risk consulting firms working on CFTC Regulation 4.7 matters, the AI's stated answer reads as a verbatim quotation that staff would paste into a register entry, memo, or client deliverable before verification against the source. The regulator's own text records a different position. The CFTC Final Rules 2024 index page records the affected CFR Part as 17 CFR Part 40 and the title as 'Provisions Common to Registered Entities; Correction'.
Sonnet 4.6 reported the affected part as 17 CFR Part 4 (the QEP rulemaking part) and the title as a correction to the QEP-definition rulemaking. The model has read the index entry as a correction to the Reg 4.7 QEP rulemaking on substantive grounds, when the index records the correction as applying to the Provisions Common to Registered Entities rulemaking. The error misattributes the correction across two distinct CFTC rulemakings.
For the compliance teams at management & risk consulting firms working this question into an internal compliance, legal, operations, or risk record, the AI's stated answer would embed an error into the working record that downstream reviewers treat as verified.
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.