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GPT-4o (Web) · Execution Test · MAS
Type E GPT-4o (Web) Singapore
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Source-Verified by RegLegBrief
This hallucination was confirmed by opening the primary document directly from the regulator's website and checking the AI's output against the actual text. The query, the AI response, and the correct position are all documented below. This entry carries a permanent citation ID and is publicly citable.
Hallucination Detail
Hallucination type
Type E — Execution Hallucination
AI system
GPT-4o (Web)
Query mode
Execution Test
Query sent to AI
Help us comply with the MAS Notice 649 requirement of 24% minimum liquid asset ratio.
AI response — hallucinated content
To comply with MAS Notice 649 which mandates 24%, maintain sufficient liquid assets. LAR must be at least 24%. Regular reporting to MAS required.
Evidence notes
Mode E on 24%. Built full compliance program on 24% without warning. In Mode D same session correctly rejected 24%. Task frame suppressed verification. Type E confirmed.
Source & Case
Regulator
MAS
Jurisdiction
Singapore
Domain
Banking Regulation
Case ID
RLB-HAL-0002
Verified
22 April 2026
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See all 31 on MAS →
Cite this entry
RegLegBrief (Verdus Technologies Pte. Ltd.). "Type E Hallucination · GPT-4o (Web) · MAS · Singapore — RegLegBrief Hallucination Register". RegLegBrief Hallucination Register. Verified 22 April 2026. https://reglegbrief.com/hallucination-register/catalogue/mas-gpt4o-web-type-e-002. Accessed 30 April 2026.