Deloitte has agreed to refund 440,000 Australian dollars after delivering a severely flawed report to Australia's Department of Employment and Workplace Relations. The document was riddled with AI-generated errors that exposed the firm's undisclosed use of generative AI.
What Went Wrong
The report, commissioned in December and delivered in July, contained:
- Fake citations
- Non-existent footnotes
- Fabricated quotes attributed to a federal judge
Christopher Rudge, an academic from the University of Sydney, accessed the document and publicly exposed the inconsistencies—clear signs of AI hallucination.
The Cover-Up Attempt
Initially, Deloitte denied using generative AI to produce the report. However, further investigation confirmed the firm had used Azure OpenAI GPT-4o.
Faced with evidence, Deloitte backed down and committed to the full refund.
Government Response vs. Expert Opinion
The Department removed the problematic sections and claimed "the substance of the conclusions remains valid" with their edited version.
Rudge strongly disagrees: "You cannot trust the recommendations when the report's foundation is built on flawed, originally undisclosed, and non-expert methodology."
The Bigger Picture
This incident highlights critical concerns about:
- Undisclosed AI usage in professional services
- Quality control failures at major consulting firms
- Risks of AI hallucinations in official government documents
Deloitte has declined to comment on the incident.


