Why use Scribbr’s AI Detector

Authority on AI and plagiarism

Our plagiarism and AI detection tools and helpful content are used by millions of users every month.

Unlimited free AI checks

Perform an unlimited number of AI content checks for free, ensuring all of your work is authentic.

No sign-up required

Start detecting AI-generated content instantly, without having to create an account.

Confidentiality guaranteed

Rest easy knowing your submissions remain private; we do not store or share your data.

AI Proofreader Scanning Document for grammar mistakes

AI Detector for ChatGPT, GPT4, Google Bard, and more

Scribbr’s AI and ChatGPT Detector confidently detects texts generated by the most popular tools, like ChatGPT, Bard, and Bing Chat.

GPT2, GPT3, and GPT3.5 are detected with high accuracy, while the detection of GPT4 is supported on an experimental basis.

Note that no AI Detector can provide complete accuracy (see our research). As language models continue to develop, detection tools will always have to race to keep up with them.

The AI Detector is perfect for...

University applicant

Students

Confidently submit your papers

Scribbr’s AI Detector helps ensure that your essays and papers adhere to your university guidelines.

  • Verify the authenticity of your sources ensuring that you only present trustworthy information.
  • Identify any AI-generated content, like ChatGPT, that might need proper attribution.
University applicant

Students

Confidently submit your papers

Scribbr’s AI Detector helps ensure that your essays and papers adhere to your university guidelines.

  • Verify the authenticity of your sources ensuring that you only present trustworthy information.
  • Identify any AI-generated content, like ChatGPT, that might need proper attribution.
Academic

Educators

Check the authenticity of your students’ work

More and more students are using AI tools, like ChatGPT in their writing process.

  • Analyze the content submitted by your students, ensuring that their work is actually written by them.
  • Promote a culture of honesty and originality among your students.
plagiatspruefung-betreuer-innen

Bloggers

Prevent search algorithm penalties

Ensure that your content is indexed by publishing high-quality and original content.

  • Analyze the authenticity of articles written by external contributors or agencies before publishing them.
  • Deliver unique content that engages your audience and drives traffic to your website.

AI Detectors vs. Plagiarism Checkers

AI detectors and plagiarism checkers are both used to verify the originality and authenticity of a text, but they differ in terms of how they work and what they’re looking for.

AI detector

AI Detector or ChatGPT Detector

AI detectors try to find text that looks like it was generated by an AI writing tool, like ChatGPT. They do this by measuring specific characteristics of the text like sentence structure and length, word choice, and predictability — not by comparing it to a database of content.

Plagiarism report

Plagiarism Checker

Plagiarism checkers try to find text that is copied from a different source. They do this by comparing the text to a large database of web pages, news articles, journals, and so on, and detecting similarities — not by measuring specific characteristics of the text.

Scribbr & academic integrity

Scribbr is committed to protecting academic integrity. Our tools, like the AI Detector, Plagiarism Checker, and Citation Generator are designed to help students produce quality academic papers and prevent academic misconduct.

We make every effort to prevent our software from being used for fraudulent or manipulative purposes.

Your questions, answered

Does it detect content generated by ChatGPT, GPT4, or Google Bard?

Scribbr’s AI Detectors can confidently detect most English texts generated by popular tools like ChatGPT, Bard, and Bing Chat.

Our free AI detector can detect GPT2, GPT3, and GPT3.5 with average accuracy, while the Premium AI Detector powered by Turnitin has high accuracy and the ability to detect GPT4.

How accurate is the AI detection software?

Our AI Detector can detect most texts generated by popular tools like ChatGPT and Bard. Unfortunately, we can’t guarantee 100% accuracy. The software works especially well with longer texts but can make mistakes if the AI output was prompted to be less predictable or was edited or paraphrased after being generated.

Our research into the best AI detectors indicates that no tool can provide complete accuracy; the highest accuracy we found was 84% in a premium tool or 68% in the best free tool.

How do I interpret the AI score?

The AI score is a percentage between 0% and 100%, indicating the likelihood that a text has been generated by AI.

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