Can I use ChatGPT to practise for an interview?

Yes, and it is genuinely useful for generating likely questions, improving the wording of an answer and explaining concepts you are shaky on. It is weak as an interviewer, because it follows your lead, rarely disagrees, has no time pressure and does not score you against what you actually said.

What prompt makes ChatGPT a better mock interviewer?

Give it your résumé and the job description, tell it to ask one question at a time, to ask a follow-up whenever an answer lacks a specific example or number, not to praise answers, and to hold feedback until the end. That helps. It will still drift towards agreeing with you, and you remain the one running the interview.

What does a dedicated AI mock interview add?

A plan you did not write, a clock, an interviewer that pushes back without being told to, research on the specific company, and a scorecard tied to quotes from your transcript — so the feedback is about what you said, not about what a good answer looks like in general.

Comparison · 6 min read

Is ChatGPT a Good Mock Interviewer? What It Does Well, and Where It Fails

ChatGPT is a good interview study partner and a poor interviewer. It is excellent at generating likely questions, tightening an answer and explaining a concept. It is weak at the part that decides real interviews — the follow-up you did not see coming — because a general chatbot follows your lead, is inclined to agree with you, has no clock, and cannot score you against what you actually said.

What ChatGPT is genuinely good at

Question generation. Paste a job description and ask for the thirty most likely questions. You will get a sensible list in seconds.
Rewriting. Paste your answer and ask for a tighter version. Useful for structure — dangerous if you then memorise its words instead of yours.
Explaining. If you cannot explain normalisation, WACC or a p-value simply, it will teach you, patiently, at midnight.
Cost. It is free or close to it.

Where it fails as an interviewer

You are running the interview. You wrote the prompt, you decide when to move on, you decide what counts as done. In a real interview the other person holds the plan and you do not know what is next. That uncertainty is most of the difficulty, and it is exactly what is missing.

It is agreeable. General assistants are built to be helpful and encouraging. Tell one that you “improved performance by 40%” and it will usually congratulate you. An interviewer asks how you measured it, what the baseline was, and whether anyone else could reproduce the number.

There is no clock and no voice pressure. Typing a considered paragraph is a different skill from answering aloud, in ninety seconds, to someone who may interrupt.

The feedback is generic. Ask it how you did and you get advice about what good answers look like. It does not reliably point to the sentence where you lost the interviewer.

It does not know the company. Unless you do the research and paste it in, the round is not shaped by how that company actually interviews for that role.

ChatGPT vs a dedicated AI mock interview

	ChatGPT (general chatbot)	Mentari (dedicated mock interview)
Who runs the interview	You, through your prompt	The interviewer, to a plan you do not see
Follow-up questions	If you ask for them; tends to accept your answer	By default, whenever an answer is vague or unquantified
Knows your résumé and the job description	If you paste them in	Yes — the round is planned from both
Knows how the company interviews	Only what you tell it	Researches the company and role before the round
Time pressure	None	20 or 40 minutes, paced
Voice conversation	Possible, but still led by you	Two-way voice, or text
Feedback	General advice	Six competency scores, each tied to a verbatim quote from your transcript
Cost	Free or a general subscription	First interview free; then one-time packs from ₹999
Best for	Studying, drafting, explaining	Rehearsing the actual interview

In fairness: if you need unlimited, free, generic practice, a chatbot is the better choice. A dedicated mock interview earns its price when you have a specific interview coming and want to know how you would actually do in it.

If you use ChatGPT anyway, use it like this

Paste your résumé and the job description first.
Tell it: one question at a time; never praise an answer; ask a follow-up whenever I give no specific example or number; hold all feedback until I say “end”.
Answer aloud using voice input, with a timer running, without editing.
At the end, ask it to quote the exact sentences that were weakest — and check the quotes are really yours.
Do not memorise its rewritten answers. Interviewers notice, and the follow-up will take you off script anyway.

When you need a real mock interview

When the interview is scheduled, the company is known, and you want evidence rather than encouragement. That is what Mentari’s AI mock interview is for: it reads your résumé and the job description, researches the company, runs the round by voice or text, asks the follow-up, and gives you a scorecard where every score is tied to a quote. The first interview is free.

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Last updated 17 September 2026 · Written by the Mentari team