Scribbr’s free AI Detector lets you check an unlimited number of English texts, up to 500 words in length. Only if you’re interested in plagiarism checking, we recommend upgrading to a premium check.
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.
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.
The AI score is a percentage between 0% and 100%, indicating the likelihood that a text has been generated by AI.
Our team helps students graduate by offering:
Scribbr specializes in editing study-related documents. We proofread:
The Scribbr 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 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.
