Cover Letter AI Checker
Worried your cover letter or personal statement reads as AI-written? Paste it below to get an instant AI score and see which sentences carry the strongest AI signals.
Use it to review your draft before you apply. Results are probabilistic signals — detectors can flag human writing as AI — so treat the score as guidance, not a verdict.
Sentence-level highlights
See the exact lines that read as AI.
Every major model
ChatGPT, Claude, Gemini — not just one.
Instant & free
No sign-up. Same text, same score.
Honest by design
A probability, never a false verdict.
Frequently asked questions
Can colleges or employers tell if my cover letter is AI?+
Some screen with AI detectors, but a score is not proof and false positives happen. Generic, voiceless writing is a bigger giveaway to human readers than any tool.
Should I check my cover letter before submitting?+
It's a useful gut check — it shows which lines read as generic so you can rewrite them in your own voice. Keep your drafts as evidence of your process.
Is using AI for a cover letter cheating?+
Using AI to brainstorm is usually fine; submitting AI-written content where it's prohibited is not. Check each application's policy and keep the final words your own.
⚠️ Disclaimer: AI Killer results are probabilistic signals and are not 100% accurate. Detectors can flag human writing as AI, so do not use this as the sole basis for accusations of plagiarism, cheating, or academic misconduct.