๐ŸŒ
GPTZero
gptzero.me
AI Detector - Free AI Checker for ChatGPT, GPT-5 & Gemini
Best free AI detector - simply paste your text to instantly get an overall AI score and advanced sentence by sentence detection.
Pricing
The World's #1 AI Content Detector with over 8 Million Users
For studentsTools to improve your writing and avoid false accusations
GPTZero is the #1 AI Detector for Students. Check AI-written text, improve essays, and get plagiarism checks with free and advanced student plans.
For teachersFoster academic integrity in the classroom
Use GPTZeroโ€™s AI detector for teachers to preserve academic integrity, elevate classwork, and streamline grading, identify AI-generated text and check for plagiarism.
Plagiarism CheckerDetect content from outside sources
Plagiarism is taking someone elseโ€™s ... detector helps educators and students to avoid doing this accidentally. GPTZeroโ€™s plagiarism checker is built for accuracy and transparency. We are able to detect plagiarism from over 100M scholarly articles, research papers, websites, and books with confidence. Presenting AI-generated text as your own ...
๐ŸŒ
QuillBot
quillbot.com โ€บ ai-content-detector
AI Detector & AI Checker - Detect ChatGPT, GPT-5 & Gemini Text
An AI detector is a tool designed to analyze written content and identify whether it was created by a human or generated by artificial intelligence. It can detect content from major models, including ChatGPT, Gemini, Claude, and Llama, and ...
Discussions

Can someone here PLEASE tell me what is the best FREE AI Detector that actually works/ if there isn't one: are your colleges helping fund it?
There will never be a reliable one. More on reddit.com
๐ŸŒ r/Professors
181
53
March 30, 2025
How trustworthy are these AI text detectors? Like some even show human written text as AI generated. How do you all validate it?
Hi! Welcome to r/Writers - please remember to follow the rules and treat each other respectfully, especially if there are disagreements. Please help keep this community safe and friendly by reporting rule violating posts and comments. If you're interested in a friendly Discord community for writers, please join our Discord server I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns. More on reddit.com
๐ŸŒ r/writers
38
2
December 13, 2024
Best AI content detector in July 2024? : ChatGPT
Anyone having any particularly spectacular success in using any of the AI detector tools in reliably detecting AI writing? Would be nice to find a... More on old.reddit.com
๐ŸŒ r/ChatGPT
How does an AI detector work exactly? : ChatGPT
I donโ€™t understand how it can still detect AI after Iโ€™ve changed numerous words and restructured the sentences. Itโ€™s honestly extremely... More on old.reddit.com
๐ŸŒ r/ChatGPT
People also ask

How Does The AI text Detector Work?
Simple! You paste your text or upload a file, and our tool compares it against a massive database using smart algorithms. It checks for things like coherence, sentence structure, and language complexity to figure out if itโ€™s human-written or AI-generated.
๐ŸŒ
aidetectorwriter.com
aidetectorwriter.com
AI Content Detector | Trusted GPT-5, and Free AI Detector
What is an AI Detector?
A free AI detector is your assistant that helps spot text generated by AI, like GPT models. It scans your text against a huge database to find any matches or similarities, ensuring your work is original.
๐ŸŒ
aidetectorwriter.com
aidetectorwriter.com
AI Content Detector | Trusted GPT-5, and Free AI Detector
Can the AI Detector detect mixed text where human-created text has been amended with AI-generated text?

Yes. Our detection report identifies specific elements written by humans and distinguishes them from AI-generated text, even when mixed.

๐ŸŒ
copyleaks.com
copyleaks.com โ€บ home โ€บ ai detector
AI Detector - Free AI Checker for ChatGPT, GPT-5, Gemini & More
๐ŸŒ
Scribbr
scribbr.com โ€บ home โ€บ free ai detector
AI Detector - Trusted AI Checker for ChatGPT, Copilot & Gemini
May 20, 2025 - Our AI Detector is carefully trained to detect most texts generated by popular tools like ChatGPT and Bard. These texts often contain certain phrases, patterns, or awkward wording that indicate they were not created by a human.
๐ŸŒ
ZeroGPT
zerogpt.com
AI Detector - Trusted AI Checker for ChatGPT, GPT5 & Gemini
Our model specializes in identifying AI generated content like Chat GPT, GPT 3, GPT 4, GPT5, Gemini, Grok, Perplexity AI, Claude, DeepSeek, LLaMa models โ€ฆ Finally, we employ a comprehensive deep learning methodology, trained on extensive text collections from the internet, educational datasets, and our proprietary synthetic AI datasets produced using various language models.
๐ŸŒ
MyDetector
mydetector.ai
Free AI Detector - Accurate AI checker for chatGPT & More
MyDetector AI checker free tool uses machine learning models trained on human and AI text data. It analyzes content to spot AI-generated patterns like repetition, lack of creativity, or unnatural transitions.
Find elsewhere
๐ŸŒ
Grammarly
grammarly.com โ€บ ai-detector
AI Detector: Free AI Checker for ChatGPT, GPT5 & Gemini
Grammarlyโ€™s AI detector tool displays a percentage that indicates how much of the text provided appears AI-generated, as assessed by our detection model. Our machine-learning model is trained on hundreds of thousands of human and AI-generated texts. Grammarly breaks your text into smaller sections, checking each section against the model for language patterns typically indicative of AI text.
๐ŸŒ
Copyleaks
copyleaks.com โ€บ home โ€บ ai detector
AI Detector - Free AI Checker for ChatGPT, GPT-5, Gemini & More
With the AI Detector and award-winning Plagiarism Checker, Copyleaks provides the ultimate content integrity suite. AI Logic demystifies detection by showing you why text has been flagged as AI-generated.
๐ŸŒ
Reddit
reddit.com โ€บ r/professors โ€บ can someone here please tell me what is the best free ai detector that actually works/ if there isn't one: are your colleges helping fund it?
r/Professors on Reddit: Can someone here PLEASE tell me what is the best FREE AI Detector that actually works/ if there isn't one: are your colleges helping fund it?
March 30, 2025 - try https://quillbot.com/ai-content-detector it even has a chrome extension that suggests new words, reformulates, and corrects mistakes. for everything you write, it's your choice to do it or not, but it's pretty nice. It's doing it right now as I'm writing this (I'm choosing to make mistake anyway lol) ... Proofademic is the only thing that's actually worked for me when it comes to making AI text undetectable.
๐ŸŒ
NoteGPT
notegpt.io โ€บ ai-detector
AI Detector & Checker - Trusted, Free for ChatGPT, Claude, Gemini
NoteGPT's free AI Detector accurately identifies AI-written content. Use our trusted AI text detector to check for ChatGPT, Claude, and Gemini text with ease.
๐ŸŒ
AI Detector Writer
aidetectorwriter.com
AI Content Detector | Trusted GPT-5, and Free AI Detector
An AI detector is a handy tool that leverages natural language processing algorithms to spot similarities between texts. It works by comparing your content against a massive database of sources including academic papers and websites to identify ...
๐ŸŒ
SciSpace
scispace.com โ€บ home โ€บ ai detector
AI Detector & Checker for Text, PDFs | Fast & accurate - SciSpace
SciSpace AI Detector instantly spots ChatGPT or GPT-4 text, rates originality, and explains risky lines - helping researchers keep assignments and papers authentic.
๐ŸŒ
Medium
medium.com โ€บ freelancers-hub โ€บ i-tested-5-ai-detectors-heres-my-review-about-what-s-the-best-tool-for-2025-35a58eac86c5
I Tested 30+ AI Detectors. These 10 are Best to Identify ...
2 weeks ago - QuillBot is one of the popular tools among writers as it is easy to use and gives accurate results. This tool lets you detect AI-generated text, humanize text, correct Grammar, find citations, check Plagiarism, manage projects, ...
๐ŸŒ
Originality AI
originality.ai
AI Detector - Most Accurate AI Content Checker for ChatGPT - Originality.ai
Originality.ai's Free AI Detector - Use our free AI checker to identify if text was generated from a popular AI platform like ChatGPT, Gemini, Claude, Grok and others.
๐ŸŒ
Gowinston
gowinston.ai โ€บ home
The Most Trusted AI Detector | ChatGPT Detection Tool
December 27, 2022 - Our OCR (Optical Character Recognition) ... in handwriting. ... Our AI detector will let you know, on a scale of 0-100, the percentage of odds a text is generated by a human or AI....
๐ŸŒ
Sidekicker
sidekicker.ai โ€บ ai detector
AI Detector | Sidekicker
Our AI detector is built on a massive dataset of human and machine-written text, ensuring reliable, accurate detection across industries and content types.
๐ŸŒ
Humanize AI
humanizeai.pro โ€บ detector
Free AI Detector - Advanced AI Checker for ChatGPT, Gemini & More
Use our free AI detector to spot AI-generated content from ChatGPT, GPT-4, GPT-5, Gemini, Claude, Jasper, and other AI tools. This unlimited AI content detector instantly identifies text written by AI. Get your essay, coursework, research papers, marketing copy, or any other AI materials ...
๐ŸŒ
Logically
logically.app โ€บ free-ai-text-detector
Free AI Text Detector | Easily Check if Your Writing Is AI Generated in Logically
Use Logicallyโ€™s free AI Text Detector to quickly see what percentage of your writing is AI-generated. Type, paste, or upload any text, and get instant results.
๐ŸŒ
JustDone
justdone.com โ€บ ai detector
AI Detector โ€“ Trusted AI Checker for ChatGPT, GPT5 & Gemini | JustDone AI
An AI detector analyzes text and estimates whether it was written by a person or by an artificial intelligence model.
๐ŸŒ
Decopy
decopy.ai โ€บ ai-detector
AI Detector - Trusted AI Checker (Free & No SignUp)
Decopy AI Content Detector uses machine learning models trained on a large number of human and AI-written text data sets, and uses complex algorithms to analyze text to extract patterns and features of AI-generated content.