SAN FRANCISCO: Tech behemoth OpenAI has touted its artificial intelligence-powered transcription tool Whisper as having near “human level robustness and accuracy”.

But Whisper has a major flaw: It is prone to making up chunks of text or even entire sentences, according to interviews with more than a dozen software engineers, developers and academic researchers. Those experts said some of the invented text – known in the industry as hallucinations – can include racial commentary, violent rhetoric and even imagined medical treatments.