Should you tell the interviewer you used AI to prepare?
Tell them if they ask, and tell them if AI helped make something they're assessing. Otherwise you don't need to raise it. Practicing questions or researching the company with AI is preparation, the same as reading the company's blog or rehearsing with a friend, and the employer policies quoted below allow it.
The decision rule fits in three lines. If they ask, answer in one plain sentence. If AI helped make a resume, cover letter or take-home they'll judge, be ready to say how and to explain every line. If AI would be helping during the live interview, there's nothing to disclose because you shouldn't be using it, as the page on whether AI in interviews is cheating sets out.
What is the one sentence to say?
Say this: "Yes, I used AI to practice questions and tighten my wording; every example and number is mine, and I'm happy to go into any of them." It covers what you did, draws the line at your own experience, and invites the follow-up. Say it plainly, then stop talking and let them ask.
Change the middle to match what you did. If AI helped format your resume, say so. If you used it to build practice questions from the job posting, say that. Keep the last clause, because it tells them the resume and the stories are facts you can defend.
What do employer policies say about disclosure?
Two of the three policies checked on October 22, 2026 ask for openness, and none of the three penalizes preparation. Greenhouse ties disqualification to AI use outside its guidelines "without disclosure or citation." Anthropic lists "Be transparent" among what it expects. American Express allows AI on work "that you fully understand and can independently reproduce and explain."
Greenhouse's guidelines also tell candidates "you can expect that we'll ask about your experience with AI during your interviews." For some work assessments it encourages AI use and adds: "Expect to walk us through your thinking, including how you used AI and the rationale behind it." That is a company asking you to disclose, so have the answer ready before the call.
Anthropic's candidate guidance, last updated July 10, 2025, encourages AI for interview prep, with example prompts such as "Help me practice explaining my experience with transformer models." It says "We expect the same transparency from you in following this guidance." For live interviews it asks for "no AI assistance unless we indicate otherwise."
American Express's AI guidance for candidates allows AI "to practice frequently asked interview questions and interview tips." It says inappropriate use, "including use that misrepresents your own work or abilities," may result in disqualification. It doesn't ask candidates to announce their preparation. Other companies' rules are collected on the page about employer AI interview policies.
When do you need to bring it up yourself?
Bring it up yourself only when AI shaped something the company will assess and its policy or the task instructions call for disclosure. A take-home task where AI was allowed is the clearest case. For everything else, wait to be asked, then answer the question they asked. The table below sorts the common cases and gives the words for each.
| Situation | Raise it yourself? | If asked, say |
|---|---|---|
| You researched the company with AI | No | "I used AI to help research the company, then checked what I found on your site." |
| You practiced interview questions with an AI tool | No | "I practiced with AI-generated questions; the answers are my own." |
| AI helped format or reword your resume | No, unless the application asks | "AI helped with the wording; every number is mine, and I can walk you through any of them." |
| AI helped on a take-home task where it was allowed | Yes, in your write-up or walkthrough | "Here's where I used AI, what I changed, and why." |
| The application form asks about AI use | Yes, answer the form accurately | The same sentence you'd say out loud |
| You reviewed a past interview with AI, after the call | No | "I review my rounds afterwards so I can fix the weak answers." |
What if AI helped write your resume?
Then the answer to "did you use AI?" is yes, and the real question is whether every line is true. Interviewers check a resume by asking about its claims, so the risk is a number you can't explain. Say AI helped with the wording, and be ready for a follow-up question on any figure on the page.
The page on whether recruiters can tell AI wrote your resume covers what they look for. The page on why AI resume tools invent numbers shows how a made-up percentage gets onto a resume and how to catch it before you send it.
Should you mention reviewing past interviews with AI?
Only if it comes up. Reviewing a round you recorded with everyone's consent is the same habit as writing notes after the call. It happens after the interview, so none of the three policies quoted here addresses it. If an interviewer asks how you prepare, it's a fair and specific thing to tell them.
If you don't record, the free 10-minute debrief template does the same job on paper, and the guide to what an interview debrief is explains the method. Prept's position is analysis after the call, never during it: it transcribes a round you recorded with consent and shows where an answer lost the room. You can try one interview hour free. Before recording anything, read how to ask to record your interview.
What should you avoid saying?
Avoid denying AI use you did, and avoid a long defense of it. A flat "no" that later proves false does more damage than any answer about practice tools. A five-minute justification makes a normal habit sound like a confession. Give the one sentence, then let them ask the next question.
Don't joke that AI wrote your stories, either. Interviewers are judging your experience, and the quickest way to lose the room is to make them wonder whose experience it is. What happens to candidates found using AI during a live round is on the page about being caught using an AI copilot.