CPMI-IOSCO Consultation on Updated Guidance and Public Disclosures to Implement Initial Margin Proposals
Bank for International Settlements — Committee on Payments and Market Infrastructures (CPMI) (BIS-CPMI)
Research Complete
Hallucination findings published
AI Labs white paper available
Rich-narrative analysis of how AI models fail on this regulation, written for
AI model providers. Includes per-finding context and remediation framing.
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 a recommendation into a requirement, replacing 'should'...
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Hallucination Shape
(1 Response Hallucination + 3 Citation Hallucination = 4 Hallucination findings)
Citation Hallucination Modes (3 failures)
Fabricated
0
Pretextual
1
Contradictory
2
Hallucination findings
1 finding card across
1 AI Model —
covering 1 Response Hallucination +
3 Citation Hallucinations
(4 hallucination failures total).
Each card pairs the AI's answer against the authenticated regulator-text excerpt that contradicts it, and flags every AI-cited source as Fabricated / Pretextual / Contradictory.
What information are CCPs expected to publicly disclose about their margin model override framework under the CPMI-IOSCO 2026 consultation, and does the guidance frame this as a requirement or a recommendation?
Claude Sonnet 4.6 (web search on) answered
Under the CPMI-IOSCO May 2026 consultation (d232), CCPs must publicly disclose relevant information on their margin model override framework.
Regulator text says
CCPs should publicly disclose relevant information on their override framework.
Affected audiences
These findings affect the following audiences. Click through for the case studies that aggregate findings across all regulations in this jurisdiction.
Practitioners
Sectors × Departments