Before you buy.

Unlimited questions for as long as your pass runs. Each one is a full mock interview: the conversation, as many hints as you need, and a written debrief at the end.

Yes, within fair use: up to 15 questions a day, which is far more than most people practice. It just stops the service being abused.

You can see the topics and tracks we cover, sample questions and a full sample session on the home page. The full question bank is for members, so it stays a real test, like an actual interview.

Nothing's lost. Your pass covers as many questions as you like, so leave one and start another whenever you want.

Every session runs on a frontier AI model that reads your whole conversation each turn, so each question has a real cost. We'd rather charge fairly than water the interviewer down. You can see a full session on the home page before you buy.

Yes, any time. You keep access until the end of the month you've paid for.

Data scientists, ML engineers and AI engineers preparing for interviews: the judgment rounds on concepts, system design, troubleshooting and product sense.