One published white paper per regulation, filtered to the AI Labs audience. Each is grounded in the same substrate of authenticated primary sources used across the rest of this research.
Last updated 14 Jun 2026 · Full ledger: Hallucination Register · Parent: AI Labs
Six hallucinations on the March 2026 IMF Review of the Adequacy of the Fund's Precautionary Balances. Failures cluster across cycle-trajectory drift on biennial-review parameters (floor, target, half-year level),...
This audit presents findings from RegLeg's evaluation of frontier AI models against the October 2024 CPMI final report on linking fast payment systems across borders, recorded as Bank for International Settlements...
This audit presents findings from the RLB Specialist Panel's evaluation of frontier AI models against the January 2025 CPMI-IOSCO publication "Streamlining variation margin in centrally cleared markets, examples of...
This audit presents findings from RegLeg's evaluation of frontier AI models against the September 2024 amendments to CFTC Regulation 4.7, which raised the qualified eligible person Portfolio Requirement thresholds...
Numeric substitution on a specific statistical figure, an 11% share inflated to 14%, is the central failure observed in Claude Sonnet 4.6 with web search on the OECD's Recommendation of the Council on Digital...
Both Claude Opus 4.7 with web search and Claude Sonnet 4.6 with web search independently fabricated a sixth operative section for the 2025 OECD Merger Review Recommendation (OECD/LEGAL/0333), which has five. On the...
Both Claude Opus 4.7 and Claude Sonnet 4.6 (each with web search active) failed on the CFTC's 2024 amendments to Regulation 1.25 across the rule's three operative pillars: the size-triggered 50 per cent concentration...
This paper presents findings from RegLeg's hallucination research on the BBNJ Agreement (2023), administered by the United Nations Treaty Collection. Two models, Claude Opus 4.7 and Claude Sonnet 4.6, both with web...
The CFTC's December 2025 digital asset collateral package (Staff Letter 25-40, its February 2026 reissuance as Staff Letter 26-05, and the accompanying tokenized asset staff guidance) frames how futures commission...
Cross-provision conflation is the dominant failure shape Claude Opus 4.7 produces on the IMF's 2024 Guidance on Financing Assurances and Sovereign Arrears, the model correctly understands the general architecture of...
Both Claude Opus 4.7 with web search and Claude Sonnet 4.6 with web search produced the same wrong pre-reform baseline when asked about the IMF's October 2024 surcharge reform, citing 19 surcharge-paying countries...
Numeric conflation across disaggregated adoption-rate subcategories, collapsing distinct faster-payment-system and RTGS figures into a single blended claim, is the primary failure surface for Claude Opus 4.7 with web...
Both Claude Opus 4.7 with web search and Claude Sonnet 4.6 with web search produced failures on CPMI-IOSCO's Implementation Monitoring of the PFMI: Level 3 Assessment on General Business Risks (Bank for International...
This audit presents findings from RegLeg's evaluation of AI model responses to questions about the CPMI-IOSCO 2016 Guidance on Cyber Resilience for Financial Market Infrastructures, the international cyber standard...
The dominant failure observed in Claude Sonnet 4.6 on the CPMI-IOSCO Consultation on Updated Guidance and Public Disclosures to Implement Initial Margin Proposals is deontic register substitution, the model hardened...
Across six question-level AI runs on this regulation, Claude Opus 4.7 and Claude Sonnet 4.6, both with web search enabled, failed in structurally similar ways. The October 2024 CPMI recommendations document and the...
This paper presents findings from a structured evaluation of two frontier AI models, Claude Opus 4.7 with web search and Claude Sonnet 4.6 with web search, against the Financial Conduct Authority's Consumer Duty...
RegLeg tested two frontier AI models against the Principles for Financial Market Infrastructures (PFMI), the global standard for payment systems, central counterparties, and securities settlement systems published...
Both Claude Opus 4.7 with web search and Claude Sonnet 4.6 with web search fabricated regulatory structure when responding to CFTC Regulation 1.44 (FCM Margin Adequacy and Separate Accounts), reconstructing rule...
Fabrication and scope-conflation are the dominant failure shapes on the CFTC's December 2025 swap dealer business conduct and documentation rulemaking, with Claude Opus 4.7 with web search producing an invented...
This audit presents findings from RegLeg's evaluation of AI model responses to questions about MAS Notice 637, the Monetary Authority of Singapore's risk-based capital adequacy framework for banks, covering both the...