---
title: "Free AI Content Detector | Check if Text is AI-Generated"
description: "Free AI detector tool to check if text was written by ChatGPT, Claude, or other AI. Get instant AI vs human detection scores with detailed analysis."
url: "https://snowseo.com/free-tools/ai-detector"
---

# Was this written
*by AI?*

Paste up to 500 words and see what nine AI detectors say. No signup, no card.

0/500 words

Detect AI content

## Nine detectors,
*one verdict.*

Your text goes through nine well-known detectors and comes back with one clear answer.

- ### One verdict

  AI-generated, mixed or human-written, with a score out of 100.

- ### Nine detectors

  GPTZero, Turnitin, Copyleaks, OpenAI, ZeroGPT, Writer, Sapling, Content at Scale and Crossplag.

- ### AI, human or mixed

  How much of the text each detector reads as AI, human or mixed.

### More free tools

## Questions,
*answered.*

Still unsure? See SnowSEO on your own site in a 30 minute call.
[Request a demo](https://snowseo.com/book-a-demo)

- ### What does an AI content detector do?

  An AI content detector estimates whether a piece of writing was written by a person or generated by AI. It looks at patterns in sentence structure and word choice, then shows how likely the text is to be AI-written.

- ### How does SnowSEO's AI content detector work?

  Paste your text and we send it to a third-party detection service that runs it through 9 detectors: GPTZero, Turnitin, Copyleaks, OpenAI, ZeroGPT, Writer, Sapling, Content at Scale and Crossplag. You see AI, human and mixed percentages from each detector. The headline verdict uses Turnitin's numbers.

- ### Is the AI content detector free?

  Yes. Run it without an account: 2 free uses per tool each year. Sign in for more.

- ### How much text can I check?

  Paste at least 50 characters. The detector reads the first 500 words, so for longer pieces, paste the section you care about most.

- ### How reliable are AI content detectors?

  No detector is perfect. Results depend on which AI wrote the text and how much a person edited it afterwards. Very formal or technical writing, and writing by non-native English speakers, can be flagged as AI by mistake. Seeing 9 detectors side by side helps you spot when they disagree. Treat the result as one signal, not a final verdict.

- ### What should I do with the result?

  Use it as a guide for editing. If your text scores as mostly AI, rework the most generic parts: add personal experience, specific examples from your work and your own opinions, vary your sentence lengths and cut filler phrases. The goal is better writing, not tricking detectors. Content that reflects real experience usually works better for readers too.

- ### Does it show which sentences look AI-written?

  No. It scores the text as a whole. It doesn't highlight individual sentences or name the AI tool that wrote the text.

- ### What if my own writing gets flagged as AI?

  Look at what might have triggered it. Formal writing, repetitive structures and limited vocabulary are common causes. Adding your own voice and varying your sentences often helps. If you need to show your work is your own, keep your drafts, notes and version history.

## Be the answer.
*Starting today.*

Not sure SnowSEO is a fit?[Request a demo](https://snowseo.com/#home-demo)

[See how SnowSEO works4 min](https://www.youtube.com/watch?v=2HIlUwInrS8)