What's fair in an interview? Notes, aids, and AI

Slaydit · September 2026 · 6 min read

"Is this allowed?" is a question candidates ask about note cards, second monitors, search engines, and now AI — and it almost never has one universal answer. Fairness in an interview isn't a fixed rulebook; it's set by the format in front of you, and it changes from a take-home assignment to a live technical screen to a behavioral conversation. Here's a way to actually work it out instead of guessing.

Why there's no single rulebook

Different interview formats are testing different things, so they allow different aids by design. A take-home assignment usually expects you to use the internet — that's realistic to how the job works. A live whiteboard coding round usually wants to see your unaided reasoning, because that's the specific skill it's measuring. A behavioral conversation about your own past experience isn't really an "open book vs. closed book" question at all — it's your experience either way, aid or no aid. Treating all three the same, either by assuming everything is fine or assuming everything is banned, misses what each format is actually for.

A framework: Stated, Signal, Swap

Stated. What do the actual instructions say? Read the invite, the assessment platform's rules, and anything the recruiter told you. If it explicitly allows or bans something, that settles it — no further judgment call needed.
Signal. If it's not stated, ask what the round is trying to measure. An aid that helps you demonstrate that thing more clearly is fine. An aid that produces the thing for you, replacing the skill being tested, isn't.
Swap. Could someone else, using the same aid, produce an equally good result with none of your underlying ability? If yes, the aid is doing the work the interview is supposed to measure, and it's not fair to use in that round — even if nobody explicitly banned it.

Search engines, notes on your own résumé, a calculator, or a structured framework you rehearsed all pass this test in most formats — they help you show something real. A tool that writes original code for a live "watch me solve this" round, or answers with a credential you don't actually have, fails it.

A worked example

"For a take-home data analysis task, the instructions said explicitly: use any tools you want, we're evaluating your final report and reasoning, not your isolation. I used a spreadsheet, looked up a formula I'd forgotten, and asked a colleague to sanity-check one assumption. All allowed, all stated. Two weeks later, in the live interview about that same project, I was asked to explain a decision on the spot with no notes — and that part I had to do from memory, because that round was testing whether the reasoning was actually mine."

Same candidate, same project, two different fairness lines — because the two rounds were measuring two different things, and both said so.

Common mistakes to avoid

Assuming "everyone does it" makes something fair. Common practice and stated rules aren't the same thing — check the actual instructions for that specific round.
Using the same aids in every round. What's fine for a take-home can be exactly what a live technical round is trying to rule out. Match the aid to the format.
Treating your own experience as if it needs a "closed book" rule. Notes on your own real background aren't a shortcut around the test — behavioral rounds are testing what happened, not whether you can recite it from memory.
Going silent instead of asking. If the rules genuinely aren't clear, asking the recruiter what's allowed is normal and reflects well on you — guessing wrong doesn't.

The bottom line

Fairness in an interview isn't one rule; it's a question you re-ask for every round: what does the format state, what is it trying to measure, and would the aid do that work for you instead of helping you show it. Notes on your own experience, research, and structure almost always pass. Anything that swaps in for the specific skill being tested doesn't — no matter how common it's become. This is the same test worth running before using any live aid at all, covered in more depth in where is the line with interview help and do companies detect interview assistance.

Built for the rounds where your own experience is the answer.

Slaydit surfaces what's actually true about your background — grounded, never invented, so it stays fair in the formats where that's what's being tested.

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