Scribbr

The website you mentioned, Scribbr, offers a free AI Detector tool that can identify content generated by AI writing tools like ChatGPT, Bard, and Bing Chat. It works by analyzing specific characteristics of the text, such as sentence structure and length, word choice, and predictability. The tool is designed to detect texts generated by popular tools like GPT2, GPT3, and GPT3.5 with high accuracy, while the detection of GPT4 is supported on an experimental basis.

Scribbr’s AI Detector is particularly useful for students, educators, and bloggers who want to ensure the authenticity of their work. The tool allows users to perform an unlimited number of AI content checks for free without requiring a sign-up. It guarantees confidentiality, ensuring that user submissions remain private and are not stored or shared.

Scribbr Features

• AI Content Detection: The Scribbr AI Detector can analyze text and detect if it was generated by AI writing tools like ChatGPT, Bard, and Bing Chat1. It supports the detection of GPT2, GPT3, and GPT3.5 with high accuracy, while the detection of GPT4 is supported on an experimental basis.

• Free Usage: Scribbr allows users to perform an unlimited number of AI content checks for free. Users can enter up to 500 words of text and get a percentage score of how likely it is that the text was generated with AI.

• Confidentiality: Scribbr guarantees confidentiality. The submissions remain private and Scribbr does not store or share your data.

• Plagiarism Checker: In addition to detecting AI-generated content, Scribbr also offers a plagiarism checker tool. This tool compares the text to a large database of web pages, news articles, journals, and so on, and detects similarities.

Scribbr Pricing

• Basic Check Plan: Free
• Premium Check Plan: $19.95 per check 

Scribbr Usages

• Students: It helps ensure essays and papers are original and adhere to university guidelines. The tool verifies the authenticity of sources and identifies AI-generated content.

• Educators: It's useful for checking the authenticity of students' work, ensuring it's written by them, and promoting a culture of honesty and originality.

• Bloggers: They help prevent search algorithm penalties by analyzing the authenticity of articles before publishing, ensuring the content is unique and engaging.

• Publishers: AI Detector enables publishers to ensure the publication of quality, credible human-written content, preventing the dissemination of potentially inaccurate or unethical AI-manipulated material.

Scribbr Competitors

• Winston: This tool is highlighted for its high accuracy, with an 84% success rate in detecting AI-generated content. It also boasts no false positives, which is significant in this field. 

• Originality: This detector has a 76% accuracy rate and is capable of detecting all GPT-4 texts. It sometimes identifies the use of paraphrasing tools as a unique feature among its competitors. 

• Sapling: Sapling stands out as the best free tool, with a 68% accuracy rate. It is totally free and user-friendly, making it a solid option for those who don't want to invest in a premium tool​​.

• GPTZero: GPTZero claims a high overall accuracy rate of 99% and is known for its strong performance against popular models like ChatGPT and GPT-4. It offers a free basic tier and upgrade options for increased usage and additional features​​.

Scribbr Launch and Funding

Founded in 2012 as a proofreading and editing company, Scribbr has marked its journey under the leadership of founder and CEO Bas Swaen. In 2022, the company reached a significant milestone with its acquisition by Course Hero, securing its position in the educational support landscape without the need for external funding.

Scribbr Limitations

• Limited language support: The AI detector only works for English texts, so it cannot detect AI-generated content in other languages.