Can you really tell AI writing from human writing?
Modern AI writes fluently enough that telling it apart from human prose has become genuinely hard — and most people are far worse at it than they assume. This 15-round quiz puts that to the test. Each round shows a short passage and asks a simple question: human or AI? After every guess you see the answer and a short explanation of the signals involved, so the quiz doubles as a quick course in what AI writing tends to look like — and why those signals are unreliable.
How the quiz works
Start below. For each of the 15 passages, read it, decide whether a person or a model wrote it, and pick your answer. The correct label appears immediately along with the tells that point one way or the other. At the end you get a score and feedback. It is completely free, needs no sign-up, and runs entirely in your browser, so nothing you answer leaves your device.
Tips for spotting the signals
Watch for a few recurring patterns. AI prose is often unusually smooth and even, fond of balanced, hedged structures (“while X, it is also true that Y”), and light on specific, lived detail or strong opinion. Human writing more often carries idiosyncrasy — an odd word choice, a tangent, a small imperfection, a concrete personal reference. But treat these as hints, not proof: good prompting erases the AI tells, plenty of humans write in a smooth, hedged style, and no method detects AI text reliably. If this quiz teaches you one thing, let it be healthy skepticism toward anyone — or any tool — claiming certainty about who or what wrote a piece of text.