Is it true that an algorithm – or a robot is deciding whether or not I get the job?
Some news articles have made it sound that way, but in fact, HireVue Interviews and HireVue Assessments are intended to be first steps in the overall interviewing process. For the vast majority of jobs, the interview (and the assessment, if the hiring company uses them) help recruiters make the first cut, and then those in the top group move on to person-to-person interviews before hiring decisions are made by people.
So HireVue Interviews and Assessments are basically just replacing the typical 20-minute screening phone call with a recruiter and the long, multiple-choice question assessment tests before the top pool of candidates moves on to the person-to-person interviews. And, to answer your other question, no robots are involved – just software.