The first interview was on the phone and it lasted about 17 minutes. Their website says the initial phone interview is usually about 45 minutes. The guy who called me told me he couldn't talk long because he was very busy that day. He mostly asked me about my resume and to tell him what Palantir does. He sounded grumpy and tired the whole time but I remained nice and professional. I thought since he was in such a crappy mood I wasn't going to advance to the next round. A few days later I got an email asking me to come into the office to meet with someone else. The interview lasted a full hour and included an editing test and a style test (like I had to pick from a series of options which sentence best and most clearly described what Palantir does). This seemed normal to me since the test was for a Writer position. What threw me off guard was when the guy started asking me logic questions. The questions were really very basic physics questions (like if I live at this address and there are 2 subway stations near me, which one will get me to work the fastest). The guy told me I answered these correctly and that I did a good job on the editing test. I thought this meant I'd advance to the next round (there are 5 rounds total) but I got an email a few days later saying that there wasn't really a match for me at Palantir given my skills and experience (so why did they call me in for an interview? who the hell knows). Anyways if you are interviewing for the Writer position be prepared for some basic math/physics. And no matter what position you're interviewing for, you MUST know what Palantir does. They will ask you that a few times.