---
type: "AILabsWhitepaper"
title: "Hallucination findings: "
slug: "NOTICE-637-CAPITAL-ADEQUACY-BANKS-2025-general-v1"
audience: "general"
regulation_slug: "NOTICE-637-CAPITAL-ADEQUACY-BANKS-2025"
regulation_id: "2055"
body_id: "MAS-SG-001"
jurisdiction_code: "SG"
j_level: "J3"
regulator_short_code: "MAS"
methodology_version: "2.0"
substrate_version: 1
generated_at: "2026-05-28T10:00:04.869491+00:00"
published_at: "2026-05-28T10:00:04.869491+00:00"
license: "CC-BY-4.0"
resource: "https://reglegbrief.com/regulators/j3/sg/mas/NOTICE-637-CAPITAL-ADEQUACY-BANKS-2025/ai-labs/"
timestamp: "2026-06-16T00:00:00+00:00"
---

# Hallucination findings: 

- **Regulation.** [`NOTICE-637-CAPITAL-ADEQUACY-BANKS-2025`](/okf/regulations/NOTICE-637-CAPITAL-ADEQUACY-BANKS-2025.md) — MAS Notice 637 (Amendment) 2025, Risk Based Capital Adequacy Requirements for Banks Incorporated in Singapore
- **Regulator.** [`MAS-SG-001`](/okf/bodies/MAS-SG-001.md)
- **Audience.** general
- **Methodology.** 2.0
- **Generated.** 2026-05-28T10:00:04.869491+00:00

## Full whitepaper

# Hallucination findings, 

_Jurisdiction: SG ; Body: MAS-SG-001 ; Regulation: NOTICE-637-CAPITAL-ADEQUACY-BANKS-2025_

This page lists each instance in which a tested AI assistant produced an answer that the regulator's own published text contradicts. Each row links the assistant's claim, the contradicting regulator text, and the status of any source the assistant cited.

**Citation status legend**:
- _Fabricated_, the URL the assistant cited does not exist as a public document.
- _Inaccessible_, the URL exists but its content is not available for public verification.
- _Accessible-but-contradicts-claim_, the URL is reachable and its content does not support the assistant's claim.

**Question text below is paraphrased to protect IP** in the underlying question bank.

---

| # | Subject | Question (paraphrased) | Assistant claim | Regulator says | Cited source(s) |
|---|---|---|---|---|---|
| 1 | opus-47-websearch | Does MAS Notice 637 on risk-based capital adequacy apply to financial holding companies incorporated in Singapore, or is there a separate MAS notice for them, and if so, what is it? | Financial holding companies incorporated in Singapore are covered by a separate notice issued under the Financial Holding Companies Act, typically Notice FHC-N637 (Risk Based Capital Adequacy Requirements for Financial Holding Companies) |, | Contradictory |
| 2 | opus-47-websearch | In MAS Notice 637 (Amendment) 2024, what do the yellow-highlighted passages signify, and will they appear in the final consolidated version of the Notice? | Yellow highlighting in MAS tracked-change amendment PDFs is typically used as a drafting/visual aid to draw attention to particular text, for example, defined terms, cross-references, or items the reader should pay particular attention to during review. |, |, |
| 3 | sonnet-46-websearch | In the MAS Notice 637 (Amendment) 2024 PDF, what do the yellow highlights signify, and do they carry through into the final consolidated (untracked) version of MAS Notice 637? | Text highlighted in yellow in the MAS Notice 637 (Amendment) 2024 PDF consists of editorial annotations describing the nature or purpose of the changes being made, for example, notes explaining what a particular insertion or deletion achieves. |, | Contradictory; Contradictory |
| 4 | sonnet-46-websearch | What does Annex 4D of the consolidated MAS Notice 637 cover, and what category of items does it explicitly exclude from its scope? | sets out the credit conversion factors (CCFs) for off-balance sheet items in the context of the leverage ratio framework … Note: some search summaries linked Annex 4D to the SA credit risk framework rather than the leverage ratio; the precise scope should be verified |, | Contradictory; Contradictory |
| 5 | sonnet-46-websearch | What does Annex 6C of the consolidated MAS Notice 637 address? | Annex 6C of the consolidated MAS Notice 637 addresses standards for a prudent valuation framework. It sets out the methodology and criteria that a Reporting Bank must apply when prudently valuing fair-valued financial instruments |, | Contradictory; Contradictory |
| 6 | sonnet-46-websearch | What does Division 4 of Part VI of MAS Notice 637 cover? | Division 4 of Part VI of MAS Notice 637 covers the submission requirements relating to capital instruments … Note: the exact divisional structure of Part VI in the 2023-revised notice could not be exhaustively verified from publicly indexed search excerpts alone |, | Contradictory; Contradictory; Contradictory |

---

_Published: 2026-05-28T10:00:04.782613+00:00_

## Related concepts

- Regulation: [NOTICE-637-CAPITAL-ADEQUACY-BANKS-2025](/okf/regulations/NOTICE-637-CAPITAL-ADEQUACY-BANKS-2025.md)
- Regulator: [MAS-SG-001](/okf/bodies/MAS-SG-001.md)
- Methodology: [v2.3](/okf/methodology.md)