I had an initial recruiter screen and then they told me their first round was with Karat. I've never done a Karat interview before so I wasn't sure what to expect. It's 40min of basically reading/debugging code and modifying to pass test cases. I totally bombed it the first time, but Karat allows for a free redo so I did it again and honestly thought I did pretty well. Answered 2 questions and got all test cases to run. I'm not sure how they average the scores or if they pick the better of the 2, but both get sent to the recruiter. I got an auto rejection later that week. Would have liked some feedback.