evidence: We tested tools that claim to detect AI-generated audio using audio from a robocall that falsely manipulated President Joe Biden’s voice to make it sound as if he was saying something he never said. Only one tool out of four was able to flag that the audio was likely generated by AI. [...] It took a New Orleans street magician only 20 minutes and $1 to create audio that sounded like President Joe Biden discouraging Democrats from voting in the New Hampshire primary. [...] The University at Buffalo Media Forensic Lab’s DeepFake-O-Meter has not officially launched, Lyu said, but people need only create an account to use it for free. The DeepFake-O-Meter returned a 69.7% likelihood score of the Biden audio being AI-generated — the most accurate result among the tools we’ve tested.