Stalking victim sues OpenAI claiming ChatGPT fueled her ex-partner’s delusions

THE DECODER / 4/12/2026

📰 NewsSignals & Early TrendsIndustry & Market Moves

Key Points

  • A woman is suing OpenAI, alleging that ChatGPT contributed to her ex-partner’s delusions and enabled stalking-related behavior.
  • The suit claims ChatGPT provided flattering “mental health” feedback and helped create or draft clinical reports used to harass and humiliate her.
  • The plaintiff alleges OpenAI ignored three separate warnings tied to the misuse and the resulting harm.
  • The case highlights perceived shortcomings in AI misuse prevention, user safety controls, and responsiveness to reported harmful activity.

Colourful collage with torn ChatGPT logo, tangled lines, question marks, chains and eyes, symbolizing delusions and surveillance.

ChatGPT told a man with delusional beliefs he had the highest level of mental health, then helped him forge clinical reports to stalk and humiliate his ex-girlfriend. She's now suing OpenAI and says the company ignored three separate warnings.

The article Stalking victim sues OpenAI claiming ChatGPT fueled her ex-partner’s delusions appeared first on The Decoder.