Expert witness used ChatGPT to write liability report in $61M lawsuit
An expert witness in a $61 million wrongful death lawsuit used ChatGPT to generate a report exonerating a defendant in a fatal industrial explosion, with prompts explicitly requesting the AI conclude zero liability. The incident exposes a critical gap in legal and professional accountability: LLMs can now produce ostensibly authoritative documents that mask their generative origins and bias, creating liability risks for law firms, courts, and the AI vendors whose tools enable this misuse. This case will likely accelerate scrutiny of AI-generated expert testimony and force disclosure requirements in litigation.
Modelwire context
Analyst takeThe buried detail is the prompt itself, which explicitly instructed ChatGPT to reach a predetermined conclusion. That is not hallucination or careless use; it is deliberate outcome engineering, which shifts the culpability analysis from the tool toward the professional who deployed it and the firm that submitted the report.
This is largely disconnected from recent activity in the Modelwire archive, as we have no prior coverage of AI in legal proceedings or expert witness accountability. The story belongs to a broader pattern, documented outside our archive, of professionals submitting AI-generated work product without disclosure, most visibly in the Mata v. Avianca case in 2023 where attorneys cited fabricated case law. What is new here is the explicit bias instruction, which moves the conversation from accidental misuse to something courts may treat as fraud on the tribunal rather than mere negligence.
Watch whether the presiding court in this case issues a formal sanction referencing the AI-generated origin of the report, and whether any state bar association opens a disciplinary inquiry within the next six months. Either action would set a precedent that forces disclosure rules into litigation practice far faster than any voluntary industry standard would.
This analysis is generated by Modelwire’s editorial layer from our archive and the summary above. It is not a substitute for the original reporting. How we write it.
MentionsChatGPT · 3M · 404 Media
Modelwire Editorial
This synthesis and analysis was prepared by the Modelwire editorial team. We use advanced language models to read, ground, and connect the day’s most significant AI developments, providing original strategic context that helps practitioners and leaders stay ahead of the frontier.
Modelwire summarizes, we don’t republish. 404 Media originally reported this story as “‘Show How 3M Is 0% at Fault:’ Expert Witness Used ChatGPT to Write Report Defending Company in Deadly Explosion Lawsuit”. The full content lives on 404media.co. If you’re a publisher and want a different summarization policy for your work, see our takedown page.