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.

Frequently asked questions: AI Detector

Does it detect content generated by ChatGPT, GPT4, or Gemini?: Scribbr’s AI Detectors can confidently detect most English texts generated by popular tools like ChatGPT, Gemini, and Copilot.

Our free AI detector can detect GPT2, GPT3, and GPT3.5 with average accuracy, while the Premium AI Detector has high accuracy and the ability to detect GPT4.
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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How does Scribbr help students graduate?: Our team helps students graduate by offering:

A world-class citation generator

Plagiarism Checker software powered by Turnitin

Innovative Citation Checker software

Professional proofreading services

Over 300 helpful articles about academic writing, citing sources, plagiarism, and more
What type of documents does Scribbr proofread?: Scribbr specializes in editing study-related documents. We proofread:

Essays

Papers

Theses

PhD dissertations

Research proposals

Personal statements

Admission essays

Motivation letters

Reports

Reflection papers

Journal articles

Capstone projects
What plagiarism and AI detection software does Scribbr use?: Scribbr’s Plagiarism Checker is powered by elements of Turnitin’s Similarity Checker, namely the plagiarism detection software and the Internet Archive and Premium Scholarly Publications content databases.

The add-on AI detector is powered by Scribbr’s proprietary software.
Which citation software does Scribbr use?: The Scribbr Citation Generator is developed using the open-source Citation Style Language (CSL) project and Frank Bennett’s citeproc-js. It’s the same technology used by dozens of other popular citation tools, including Mendeley and Zotero.

You can find all the citation styles and locales used in the Scribbr Citation Generator in our publicly accessible repository on Github.