Winston AI vs Quillbot: Which AI Detector Is Better in 2025

I’ve been testing several AI detectors in 2025. Since Winston and QuillBot are two of the greatest, let’s compare them and see who wins.

How I will test them

I will test them using a paragraph from a book and also a couple of generated AI text, so let’s see if it’s able detect both of them correctly.

I’m going to ask to chatgpt to create a text with 500 words:

I will do the same for Gemini:

And I will also use the next paragraph from the book “1984” :

The hallway smelt of boiled cabbage and old rag mats. At one end of it a coloured poster, too large for indoor display, had been tacked to the wall. It depicted simply an enormous face, more than a metre wide: the face of a man of about forty-five, with a heavy black moustache and ruggedly handsome features. Winston made for the stairs. It was no use trying the lift. Even at the best of times it was seldom working, and at present the electric current was cut off during daylight hours. It was part of the economy drive in preparation for Hate Week. The flat was seven flights up, and Winston, who was thirty-nine and had a varicose ulcer above his right ankle, went slowly, resting several times on the way. On each landing, opposite the lift-shaft, the poster with the enormous face gazed from the wall. It was one of those pictures which are so contrived that the eyes follow you about when you move. BIG BROTHER IS WATCHING YOU, the caption beneath it ran.

Winston AI

Winston AI is an AI-powered tool designed to assist writers in generating content efficiently.

Pros:

High Accuracy: Claims a 99.98% accuracy rate in detecting AI-generated content.
User-Friendly Interface: Designed for ease of use, catering to individuals with varying levels of technical expertise.
Versatile Applications: Suitable for academic institutions, SEO professionals, and writers aiming to ensure content originality.

Cons:

Quality Variability: The quality of generated content may vary and require human editing.
Dependence on AI: Over-reliance on AI-generated content might hinder the development of personal writing skills.

Results

First let’s check with the 1984’s text:

Now let’s go with chatgpt:

Now gemini:

👉Try Winston

QuillBot

QuillBot’s AI Content Detector is a free tool designed to identify AI-generated text from platforms like ChatGPT, Gemini, and Claude

Pros:

Support for Multiple Languages: Identifies AI-generated material in German, Spanish, French, and English.
Options for Integration: Compatible with a number of writing platforms.
User-Friendly Interface: Provides a simple layout for effortless navigation.

Cons:

Basic Free Version: A subscription may be necessary for certain advanced capabilities.
Possible Inconsistencies: Users have complained about different detection findings’ accuracy.

All things considered, QuillBot’s AI Content Detector is a helpful tool for recognizing AI-generated material, particularly for users who speak many languages. Cross-verifying data with different detection tools is advised for important applications, nevertheless.

Results

1984’s text: