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Answer key checker

Paste a multiple-choice quiz with the answers marked. A second AI answers every question without seeing your key, then flags wrong keys, questions with two right answers, and giveaway distractors.

  • Free
  • No sign-up
  • 5 checks a day
  • Works on quizzes from any AI tool

0 / 12,000 characters · up to 25 questions

Paste it to also check that answers match what you taught.

How it works

  • Paste any multiple-choice quiz, including one made with ChatGPT or another AI tool.
  • Mark the right option with * before it, or add a line Answer: C.
  • A separate AI answers every question without seeing your key, then we compare.
  • You see wrong keys, double answers, giveaway options and vague wording.