AI Training Guide · Step 6 of 11
How to Prepare for the AI Interview and Skill Assessments
Many AI training platforms screen you in two stages: a short interview, often run by an AI interviewer, and a skill check in your field. Mercor, for example, uses an AI interview, and Ethos says it uses AI tools to screen and match experts. The skill checks come after or instead.
This guide covers the format and how to prepare. It does not share real questions; platforms keep those confidential, and so should you.
The Two Stages
| Stage | What it is | What it rewards |
|---|---|---|
| AI-led interview | A conversation with an AI interviewer, often on camera, about your background and how you think | Specific examples from real work you have done |
| Skill assessment | Written or practical tasks in your field, often with a time guide or deadline | Accuracy, thoroughness and following every instruction |
How Screening Works on Mercor and Ethos
| Platform | Format (own pages, checked 2026-10-06 to 2026-10-08) | Retakes and notes |
|---|---|---|
| Mercor | An AI interview of about 20 minutes, specific to the role, plus written or multiple-choice assessments | Up to three retakes of an interview across all your applications, but hiring managers can see your retake count and a retake resets your application progress, so save retakes for technical problems. Most written assessments allow one submission. Completed steps carry over to every later application and do not expire |
| Ethos | Screening questions about your background for each project, which may be run by an AI agent. Its voice interviews are recorded and transcribed, and AI tools write follow-up questions and evaluate the interview | You can ask for a human review of significant decisions made by its AI tools |
| Your top pick in the AI Training Job Matcher | Not sure which platform to apply to first? Answer two questions | Points you to the platform that fits your background |
Our top pick‘s AI interview runs 20 to 40 minutes, about 7 minutes for each skill being assessed. You answer open-ended questions out loud, in real time, and the session is recorded so human recruiters can review it.
Assessments are often unpaid. Ethos says it does not pay for preparation time unless that was approved in advance. Mercor is a notable exception: its work trial, a project-like assessment of four to six hours, is paid once per candidate.
Ethos works differently. Its AI interview is a relaxed voice conversation about your career story, the work you want next and where you are based, rather than a skills test, and there is no score at the end. Have a short version of your career story and two concrete examples ready. More on the Ethos page.
Sources: Mercor AI interview guide, Mercor assessments, Mercor new application steps, Mercor apply guide, Mercor work trial, Ethos expert terms, Ethos privacy policy, CrowdGen qualifications.
Before the Interview
- ✓Chrome on a laptop or desktop (Mercor does not support Firefox or phones)
- ✓A quiet room
- ✓A working camera, plus an external microphone and headphones
- ✓A stable internet connection, tested
- ✓Pen, paper and a calculator if your field needs them
- ✓Your profile open, so your answers match it
- ✓No VPN or iCloud Private Relay: Mercor blocks sign-ins through them
Those setup points come from Mercor's interview guide, which also says that if the AI interviewer cuts in while you pause, you can tell it you were not finished.
Sources: Mercor AI interview guide, Mercor account security and conduct.
During the Interview
- Use real examples from your own work: the situation, what you did, and what happened.
- Keep talking through a thought. Trainers report that the AI interviewer can treat a pause as the end of your answer.
- Keep your claims consistent with your profile. Ethos, for one, can drop experts whose screening answers are inaccurate.
Sources: r/mercor_ai thread, r/mercor_ai thread, Ethos expert terms.
Before the Skill Check
Assessments marked “about an hour” often take longer for careful people. Applicants who pass commonly report budgeting two to three hours. Reviewers care about thoroughness and accuracy, not speed.
Mercor says most of its assessments have no strict time limit, and advises finishing in one session and keeping a backup of long written answers, since autosave is not guaranteed.
Sources: Mercor assessments, DataAnnotation FAQ, Assessment tips round-up, Starter assessment write-up.
After You Pass: Onboarding Counts Too
Passing screening is not the last gate. Expect an identity check. Mercor runs it once, through Persona: you photograph your physical government ID (a photo of a screen is rejected) and record a short selfie video, and most checks finish within moments or one business day. Our top pick asks you to scan an unexpired, original physical ID with your camera, then take a selfie; IDs in English or Arabic usually verify within minutes, others up to 72 hours. Ethos may ask for the same through Persona, with a live selfie photo and short video, plus sanctions screening. On all three, use the exact legal name on your ID.
Mercor also runs a background check through Certn or Zinc, covering identity, degrees, past jobs, professional licenses and criminal records. It usually takes five to seven business days, asks for seven years of home addresses, and must clear before you log any hours.
Onboarding comes next. There, it means reading the project instructions, which it calls your source of truth, plus training videos and, where required, sample tasks and qualification quizzes before real work. Mercor counts required training sessions as logged work on hourly contracts, and says late or heavily revised work can lead to a trial sprint and then the end of a contract. Take the training seriously, because your first scored tasks count.
Sources: Mercor contracts, Mercor project offboarding, Mercor ID verification, Mercor background check, Mercor project onboarding, Ethos privacy policy, Alignerr FAQ.
Rules to Keep
- Do the assessment yourself. Mercor bans AI tools on assessments unless a task says otherwise, and some of its assessments switch off copy and paste. Other platforms have similar policies.
- Never share or post the questions you were asked. Trainers report that posting assessment content can cost the account.
Sources: Mercor assessments, Mercor time tracking and pay policy, Outlier community guidelines, Handshake AI support, r/WFHJobs thread.
What Working Trainers Say
Trainers on Reddit who have been through screening repeat four points.
- Treat the AI interview like one with a person. Answer with specific examples from your own work, and keep talking through a thought, since a pause can read as the end of your answer.
- Budget hours for the assessment. Trainers describe them as long and detailed, and most applicants do not pass.
- Results can take days or weeks, and some platforms never send a rejection. A long silence usually means no.
- Prepare from the guidelines and examples you are given. Asking for or sharing real questions breaks the confidentiality rules and can cost you the account.
This section draws on Reddit threads such as: Reddit thread, Reddit thread.
My AI interview took about 25 to 30 minutes. Talking to the camera felt natural, but a few questions caught me off guard, and it takes a couple of answers to find your feet.
What worked best was turning each question back to something I know well, like SEO or spreadsheets, and giving a real example from my own work. A clear story from your own experience beats struggling through a question.
Our top pick has a free practice interview with feedback, so you can try its AI interview before the real one.
Referral link
Want to practise first? The free AI Interview Practice gives you five practice questions and instant feedback on how specific, clear and checkable your answers are.
Find a platform to apply to
Chat with DigiNo Toucan. Two questions, no CV needed.
Not applied yet? Start with Mercor, Ethos or your top pick in the AI Training Job Matcher.
AI Interview and Assessment FAQ
What is an AI interview for AI training jobs?
A short interview run by an AI interviewer, often on camera, that asks about your background and how you reason. Mercor uses one in screening, and Ethos uses AI tools to screen and match experts.
How do I prepare for an AI interview?
Use Chrome on a computer in a quiet room with a working camera and microphone, re-read your profile, and prepare real examples of your work: the situation, what you did and the result.
What is on an AI training skill assessment?
Written or practical tasks in your field, often timed, that test accuracy and whether you follow every instruction. Platforms keep the actual questions confidential.
Can I retake an AI training assessment?
Sometimes. Mercor allows up to three retakes of its AI interview, but most of its written assessments allow one submission. Prepare as if you get one attempt.
Can I use ChatGPT on an AI training assessment?
No. Mercor bans AI-written assessment answers and using AI to rate model answers or write justifications. Other platforms have similar policies, and news reports describe contractors removed for it.
