What is an AI interviewer? A guide for hiring teams

An AI interviewer is software that holds a job interview with a candidate in place of a person, and keeps a record of it for the hiring team. In most companies it takes over the first round: every applicant answers questions about the role, and people read what they said before anyone is invited to a human interview.

That is the whole definition. Most of the confusion comes from products sold under neighbouring names, so it helps to say what an AI interviewer is not.

• An AI recruiter is a looser label for software that may also source, message, schedule or rank candidates. Some include an interviewer and some do not interview anyone. Career1 uses both names for one product: its AI recruiter is the same interview with a job page and a ranked shortlist around it.
• An interview notetaker records and summarises interviews that people hold. It helps an interviewer write things down. It does not conduct the interview, so it removes none of the scheduling.
• An interview copilot is a tool for candidates that suggests answers during a live interview. It sits on the other side of the table, and a lot of what appears when you search for AI interview software is this kind.
• An assessment tests a skill directly, such as a coding exercise or a cognitive test. An interviewer asks about experience and reasoning. It does not replace a work sample.

For a hiring team the practical question is narrower than the vocabulary: which step of your process the software would take over, and what you would receive in place of the screening call.

Three formats are sold as AI interviews, and they produce different evidence. Each example below is described from the vendor's own page, opened on 29 September 2026. Career1 is not affiliated with any of them.

Swipe the table sideways to see every column.

The difference that matters most is the second question. A fixed list can only ask what was written in advance, so everyone who read the same preparation guide gives the same first answer. A conversational interviewer can ask what exactly the candidate did, what went wrong, or why they chose one approach over another, which is where rehearsed answers run out. One-way video is easier to compare side by side for the opposite reason: everyone answered the same words.

Length differs as much as format. HireVue's candidate FAQ says most of its video assessments include "between five and eight questions". Sapia.ai's guide asks candidates to allow 20 to 30 minutes for the typed interview. Career1's spoken interview takes about eight minutes. Chat removes the camera, which some candidates strongly prefer, and loses the spoken answer, which a customer-facing role may need.

Career1 is the worked example here, because its workings can be stated from its own code rather than a brochure. Other products differ in channel, length and what they score, so ask each vendor for the same seven answers.

1. The role is written down. The hiring team posts a job with a description and requirements. Those and the applicant's resume are all the interviewer knows about the job and the person.
2. Applying opens the interview. A new applicant goes from the application form straight to the interview room, and the link is also emailed and stays valid for seven days. Nothing is booked with anybody, which is what removes phone screen no-shows.
3. The candidate is told first. Before the start button, the room says the interviewer is an AI, that the voice is processed live by OpenAI to run the conversation, that the interview is recorded, transcribed and assessed by AI, and that a person at the company makes the decision. Camera and microphone are required.
4. It follows a plan, not a script. An introduction, about three questions on the role, one on experience, one behavioural question and a close. It asks one question at a time, digs into projects named on the resume, and follows up when an answer is vague.
5. It keeps to time. About eight minutes, never more than ten, in English.
6. A report is written from the transcript. A model reads the transcript, the resume and the job and writes the assessment. The video is kept for people to watch; it is not analysed for faces or expressions.
7. People decide. The team reads a ranked shortlist. Career1 recommends, has no score threshold, and rejects nobody.

Whatever the vendor, you should get three things: the transcript, the recording or the typed answers, and a written assessment you can check against them. A score with no quote behind it is an opinion nobody can argue with.

A Career1 report carries, for each applicant:

• a match score against the role and an overall interview score, each out of 100;
• a recommendation of strong hire, hire, maybe or no hire;
• scores with two or three sentences of reasoning for technical depth, communication, problem solving, experience fit and culture fit;
• a ledger of the skills on the resume, marking which ones the interview actually demonstrated, with the quote that shows it or "not probed";
• strengths, risks, and required skills that were not shown;
• four to six questions for your own next round.

The complete sample interview report shows every part of it for a fictional customer success applicant. A quick way to read one: the summary, then the skill ledger, then the risks, then one quote checked against the transcript. When the report and the transcript disagree, the transcript wins. How these fields line up with your own interview form is in structured interview scorecard.

The honest list is longer than most product pages admit.

• Whether they can do the work. A conversation shows how somebody explains their work. A short paid work sample shows the work.
• Who is speaking. Recording a face is not verifying an identity, and an AI interviewer does not check documents or references. What does is in fake job applicants.
• What the candidate did not say. It scores the answers it heard. A strong candidate who undersells a project leaves evidence on the table.
• Whether every claim is true. Follow-up questions catch borrowed experience often, not always.
• The future. How somebody will perform in two years, get on with your team, or behave in a crisis.
• A badly specified role. A vague job description produces a vague interview, whoever conducts it.
• A garbled transcript. Speech-to-text makes mistakes with accents, jargon and poor connections, and a score written from the transcript inherits them. When a score hinges on one answer, play the recording.

Some vendors once claimed to read personality or emotion from a face; the best-known one withdrew that, as AI interviews in 2026 explains. Treat any such claim as the one to question hardest. Career1 does not use recordings to recognise anyone by face or voice, as its privacy policy says.

Tell them anyway. It is the practical answer and, in a growing number of places, a legal one. In the survey behind Greenhouse's 2025 AI in Hiring report, 4,136 job seekers, recruiters and hiring managers in the US, UK, Ireland and Germany, 54 percent of US job seekers had already met an AI-led interview, 87 percent said it is important for employers to be transparent about their own AI use, and only 8 percent of candidates believed AI makes hiring more fair. Greenhouse sells hiring software, so read it as a vendor's survey; the direction is still hard to argue with.

Where the law speaks, it points the same way. None of this is legal advice; ask counsel what applies to you.

• The European Union. Article 50 of the AI Act requires AI systems that interact directly with people to be designed so that they "are informed that they are interacting with an AI system", unless that is obvious. The Commission's service desk marks that article as amended by the Digital Omnibus on AI and not yet updated on its page, so check the current wording. Article 26 adds that deployers of the high-risk systems listed in Annex III that make or assist decisions about people "shall inform the natural persons that they are subject to the use of the high-risk AI system". The dates are covered in AI interviews in 2026.
• New York City. Local Law 144 bars employers from using an automated employment decision tool unless it has had a bias audit within a year, the audit information is public, and certain notices have been provided to candidates. The city says the notice must go out 10 business days before the tool is used.

What a good notice says, in the job advert and again in the invitation:

1. The first interview is held by an AI, and roughly how long it takes.
2. What is recorded, voice, video or text, and who at the company sees it.
3. What is assessed: the content of the answers, against the role.
4. That a person reads the results and makes every decision.
5. How to ask for an adjustment or a different route, and whom to ask.

Career1's room states the first, second and fourth before the start button, and its interviewer confirms it is an AI if a candidate asks. The third belongs in your advert. The fifth is yours to provide: Career1 has no built-in non-AI route, so decide in advance what you will offer somebody who asks for one.

• You hire a few people a year from a handful of applicants. Call them. An interviewer earns its place when volume makes calling everyone impossible.
• The job is making something. Use a short, paid work sample. A conversation does not substitute for it.
• Screening is eligibility only. A licence, a shift pattern or the right to work are yes or no questions for the application form.
• You interview in a language other than English. Career1 is English only at the time of writing; HireVue's AI Interviewer page lists "French, English, Spanish, Portuguese, and More".
• You need to know who the candidate is. An interview does not verify identity. That takes documents, references and, for remote roles, more.
• The hire is a senior one decided over weeks. A co-founder or an executive is a relationship, not a screen.
• Your recruiters live inside an applicant tracking system. Career1 does not sync with one; the difference is in ATS or AI interviewer.

If none of those apply, the buyer's checklist is in how to evaluate an AI interview platform, and published prices across the market are compared in AI interview software pricing. Career1's own plans are on its pricing page: free for two interviews a month with no card, then $49, $99 or $199 a month for 25, 60 or 150 interviews.

Every page below was opened and read on 29 September 2026. Career1 is not affiliated with any other company named here.

• HireVue AI Interviewer: hirevue.com/solutions/ai-interviewer.
• HireVue video interviewing: hirevue.com/solutions/video-interviewing.
• HireVue candidate FAQ: hirevue.com/candidates/faq.
• Sapia.ai candidate guide: sapia.ai/candidate-explainer.
• Greenhouse, "An AI Trust Crisis", 19 November 2025, with its survey methodology: greenhouse.com/newsroom.
• EU AI Act, Article 50, on the Commission's AI Act Service Desk: ai-act-service-desk.ec.europa.eu.
• EU AI Act, Article 26: ai-act-service-desk.ec.europa.eu.
• New York City guidance on automated employment decision tools: nyc.gov.
• Career1's own behaviour: its privacy policy and the sample interview report.