An AI interviewer is employer-side software that conducts all or part of a job interview without a person asking the questions. It delivers questions by voice, video or chat, records and transcribes the candidate's answers, and usually produces a summary, rating or score that a recruiter reviews before deciding next steps.
You meet one when an employer or a hiring platform sends you a link instead of a calendar invite. This page explains how AI interviewers work, the main formats, the laws that cover them and how to prepare. Take the assessment yourself and follow the employer's rules — use CoPilot Interview to practice beforehand.
How an AI interviewer works
- The employer sets it up. A recruiter picks the role, the skills to assess and the questions, or lets the system generate role-specific questions.
- You get a link. Many AI interviews are on demand, so you choose when to take them.
- The AI asks. Questions arrive as text, a recorded prompt or a synthetic voice. Conversational systems listen and ask follow-ups based on what you said.
- Your answers are recorded and transcribed. The transcript is what most evaluation works from.
- The system evaluates. Answers are compared against the skills or rubric the employer chose, and the result goes to the hiring side.
Two vendors describe this in their own documentation, as of October 2026. Mercor says it uses an AI interviewer to ask role-specific questions, generate a transcript of your responses and evaluate your performance for the listing, and that most interviews take about 20 minutes (see our Mercor AI interview guide). micro1 says its AI interviewer, Zara, rates soft skills in every interview (critical thinking, empathy and active listening, communication clarity, and adaptability and composure) as Average, Good or Excellent (see our micro1 AI interview guide).
Types of AI interviewer
| Format | What happens | What the employer gets |
|---|---|---|
| One-way video with AI analysis | A question appears and you record an answer within a time limit. No one responds in the moment. | Your recordings and an AI evaluation of them |
| Conversational AI interviewer | A synthetic voice asks questions in real time and follows up on your answers, often with your camera on. | A recording, a transcript and ratings or a summary |
| AI phone screen | An automated call asks short qualifying questions, such as availability, location, work authorization and pay expectations. | A structured record and a transcript |
| Chat screen | A chatbot asks screening questions by text, often soon after you apply. | Your answers, checked against the role's requirements |
Some employers chain these: a chat screen, then a recorded or conversational interview, then interviews with people. For two formats in depth, read what a one-way video interview is and our guide to the AI recruiter phone screen.
Example: a conversational AI interview
Example (we wrote this; real formats vary by vendor and employer).
- AI: "Tell me about a project where you had to work with incomplete data."
- Candidate: describes filling gaps in a sales dataset with estimates and flagging them in the report.
- AI follow-up: "How did you check that your estimates were reasonable?"
- What the recruiter sees later: the transcript, a rating for each skill the employer chose and a short summary.
The follow-up is the part people don't expect. Anything you mention can become the next question, so mention only what you can explain.
AI interviewer vs AI interview copilot
| AI interviewer | AI interview copilot | |
|---|---|---|
| Works for | The employer | The candidate |
| What it does | Asks, records, transcribes and rates | Helps you practice and structure answers |
| Output goes to | A recruiter or hiring team | Only you |
| Part of the hiring decision? | Can be | No |
An AI mock interview sits in between: software plays the interviewer, but you run it for your own practice and only you see the score. Our full AI interviewer vs AI interview copilot comparison covers where they overlap, and the candidate-side tool is defined in what an AI interview copilot is. More terms are in our AI interview glossary.
Laws that cover AI interviewers (as of October 2026)
A few laws give candidates specific rights. This is a summary, not legal advice.
- New York City, Local Law 144. Employers that use an automated employment decision tool to screen or assess candidates for jobs in the city must have a bias audit done within the year before use and post a summary of the results. Candidates who live in New York City must get notice at least 10 business days before the tool is used, including the qualifications it will assess and how to request a reasonable accommodation. Enforcement began July 5, 2023 (NYC Department of Consumer and Worker Protection).
- Illinois, Artificial Intelligence Video Interview Act. In effect since January 1, 2020. Before asking for recorded video interviews that AI will analyze for Illinois-based jobs, employers must tell you AI may be used, explain how it works and what general characteristics it evaluates, and get your consent. They may share the videos only with people needed to evaluate you, and must delete them within 30 days if you ask (820 ILCS 42).
- European Union, AI Act. The European Commission lists AI tools for employment and recruitment, such as CV-sorting software, as high-risk, and says the rules for these high-risk areas apply from December 2, 2027 (European Commission).
How to prepare for an AI interviewer
- Practice talking to software. The biggest surprise is the format: a timer or a synthetic voice instead of a face. A scored AI mock interview removes that surprise. CoPilot Interview's Mock Interview builds questions from your résumé and the job description, reads them aloud and scores each spoken answer out of 10 with what to fix and a model answer.
- Answer in your first sentence. Evaluation works from a transcript, so state your point, then support it.
- Use the job description's words, honestly. If you've done what the posting describes, name it in its terms.
- Read the instructions. Check the time per answer, whether retakes are allowed and what tools are permitted.
- Ask about accommodations. If the format puts you at a disadvantage, ask for an alternative. In New York City, the notice must tell you how to request one.
For answer techniques and a setup checklist, read how to pass an AI interview.
Common mistakes
- Long silences. Mercor warns that extended silences may cause its AI to interject. Think briefly, then speak.
- Rambling to fill the time. A long, unfocused answer is harder to evaluate from a transcript, not easier.
- Treating a retake as free. Mercor allows up to three retakes of an official interview, and hiring managers can see how many you took.
- Using help the rules don't allow. An AI interview is an assessment. Prepare beforehand, then take the interview on your own.
Rehearse before the AI interviewer does
Answer realistic questions out loud and get a score out of 10 with what to fix, so the real session isn't your first time talking to software.
Try a free AI mock interviewFAQ
Is an AI interviewer the same as an AI interview assistant?
No. An AI interviewer works for the employer: it asks the questions and evaluates your answers. An AI interview assistant works for the candidate and helps you practice and structure answers.
Does a person review an AI interview?
It depends on the employer and the vendor. Mercor, for example, says it uses interview results to recommend candidates to employers. If it matters to you, ask the recruiter whether a person reviews every submission.
Can I retake an AI interview?
It varies. As of October 2026, Mercor allows up to three retakes of an official interview across related applications and offers free practice interviews; other systems may allow none. Check the instructions before you start.
Do I have to consent to an AI interview?
In Illinois, employers must get your consent before AI analyzes a recorded video interview for an Illinois-based job. In New York City, employers must give candidates who live there notice before using an automated decision tool. Elsewhere the rules vary, so read the notice you're given.
How do I practice for an AI interviewer?
Run scored mock interviews out loud before the real one. CoPilot Interview's Mock Interview scores each spoken answer out of 10, and the browser version needs nothing installed. Take the assessment yourself and follow the employer's rules — use CoPilot Interview to practice beforehand.