QuillBot
quillbot.com › ai-content-detector
AI Detector & AI Checker - Detect ChatGPT, GPT-5 & Gemini Text
QuillBot’s AI Detector analyzes patterns to estimate the likelihood that a text is human written or AI generated. Instead of flagging individual words, our detector notices structural signals like repetition, generic language, and lack of variation in tone.
ZeroGPT
zerogpt.com
AI Detector - Trusted AI Checker for ChatGPT, GPT5 & Gemini
AI Content Detector and ChatGPT Detector, simple way with High Accuracy. AI Checker & AI Detector Free for AI GPT Plagiarism by ZeroGPT.
What ai detector are you using in your classes (and why)?
None. They’re not reliable. I switched to all in class essays. More on reddit.com
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1 month agoFree AI generated images detector : aiwars
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
How does an AI detector work exactly? : ChatGPT
I don’t understand how it can still detect AI after I’ve changed numerous words and restructured the sentences. It’s honestly extremely... More on old.reddit.com
What is the best AI detector?
GPTZero is consistently rated the most accurate and reliable AI detector across various use cases. Reliability: In 2025, G2 ranked GPTZero the #1 most trusted and reliable AI tool, above Grammarly. Accuracy: GPTZero is the most accurate AI detector with 99% accuracy rates across diverse datasets, independently reviewed by AI labs at top institutions. Independent reviewers, including Tom's Guide, testing all popular detectors named GPTZero the most accurate. Best Interpretability: GPTZero is the only detector that explains exactly why text is AI with natural language. GPTZero also has the most
gptzero.me
gptzero.me
AI Detector - Free AI Checker for ChatGPT, GPT-5 & Gemini
What is the best AI Detector?
Copyleaks is an industry leader in accuracy, scalability, integration, and security.
Several significant differences exist between our AI content detection tool and the rest of the market. For example:
- We use large-scale, credible data with machine learning to understand text patterns, resulting in over 99% accuracy.
- We offer seamless API and LMS integrations.
- The detector can analyze and identify AI-generated code, even if altered.
- Our AI checker doesn’t flag non-AI features of Grammarly, like spell check and grammar, unlike other tools.
- All Copyleaks products are fully GDPR-compliant and certified to SOC 2 and SOC 3 standards.
copyleaks.com
copyleaks.com › home › ai detector
AI Detector - Free AI Checker for ChatGPT, GPT-5, Gemini & More
What models can the AI Detector detect?
Copyleaks can detect content from:
- GPT-5, GPT-4, ChatGPT
- Claude
- Gemini
- DeepSeek
- Llama (Meta)
- Bloom
- Rytr
- Jasper
…and more.
copyleaks.com
copyleaks.com › home › ai detector
AI Detector - Free AI Checker for ChatGPT, GPT-5, Gemini & More
Videos
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AI Detector Bypass - Learn to Manually Humanise AI content with me!
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3 Best Free AI DETECTORS — I Tried Them All - YouTube
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SciSpace AI Detector Review - 2025 | It Outsmarts ChatGPT with ...
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.
Scribbr
scribbr.com › home › free ai detector
AI Detector - Trusted AI Checker for ChatGPT, Copilot & Gemini
May 20, 2025 - Scribbr AI Detector: Identify AI-generated content from ChatGPT, Copilot, and Gemini with our advanced AI Checker. Try it for free!
Grammarly
grammarly.com › ai-detector
AI Detector: Free AI Checker for ChatGPT, GPT5 & Gemini
Grammarly’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 ...
Copyleaks
copyleaks.com › home › ai detector
AI Detector - Free AI Checker for ChatGPT, GPT-5, Gemini & More
Copyleaks uses a combination of linguistic modeling, deep learning, and our proprietary AI Logic to detect generative content with unmatched precision. ... Go beyond a simple ChatGPT detector—get detection for all AI models, including Gemini, Claude, DeepSeek, and any new models as they are released.
Aidetector
aidetector.com
AI Detector - 100% FREE AI Checker (Unlimited Words)
Instantly detect AI-generated text from ChatGPT, GPT-4, Claude, Gemini, and other popular models.
Undetectable AI
undetectable.ai
AI Detector & AI Checker for ChatGPT (Free) - Undetectable AI
Paste your text into our free AI detector to see if it’s flagged as AI. Get instant results from our AI checker and ChatGPT detector.
MyDetector
mydetector.ai
Free AI Detector - Accurate AI checker for chatGPT & More
MyDetector's Free AI Detector analyzes ChatGPT, GPT-4, Gemini & Claude content. Get 99% accurate AI checker results instantly—no login required.
Medium
medium.com › freelancers-hub › i-tested-5-ai-detectors-heres-my-review-about-what-s-the-best-tool-for-2025-35a58eac86c5
I Tested 5 AI Detectors – Which AI Detection Tool ...
1 week ago - Looking for the best AI detectors in 2025? I tested 5 top AI detection tools, including GPTZero and Originality.ai, to find the most accurate AI content verification tool.
Reilaa
reilaa.com
Free AI Detector — Unlimited AI Content Detection Tool | Reilaa
Free AI detector with unlimited scans. Estimate your Turnitin score before submission. Accurate AI content detection for students and educators. No sign-up required.
Sightengine
sightengine.com › detect-ai-generated-images
AI image detector. Detect AI-generated media at scale
Our AI image detector automatically detects images from popular AI generators.
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 ...
Uncheck AI
uncheck.ai
Uncheck AI: Undetectable AI Free & Best AI Detector Online
Uncheck AI scans AI content and creates undetectable AI text that is indistinguishable from human content with one click. Uncheck.ai is the most effective way to make AI text undetectable.
WRITER
writer.com › ai content detector
AI content detector | ChatGPT detector & AI checker for GPT-4 - WRITER
October 14, 2025 - Use our free AI detector to check up to 5,000 words, and decide if you want to make adjustments before you publish.
AI Detector
isgen.ai
AI Detector | The Most Accurate AI Checker for ChatGPT & More
Isgen is the leading AI Detector for detecting text written by Openai's GPT-4, Chat-GPT, Claude, Gemini, Deepseek and other open-source models
Plagiarism Detector
plagiarismdetector.net › ai-content-detector
AI Plagiarism Checker - Detect AI Generated Content Online
Once the data is accumulated, the ChatGPT checker digs deep and extracts features of the content. The GPT detector examines everything in the content, including sentence structure, vocabulary, and layout of the content to ensure no small chunk of AI-generated phrase bypass its sharp detection.
Duplichecker.com
duplichecker.com › ai-content-detector.php
AI Detector - Identify GPT3 & GPT4 Content
Use AI detector to determine if your content is human or AI generated from ChatGPT3 and ChatGPT. Paste your text and find out its originality.
Reddit
reddit.com › r/professors › what ai detector are you using in your classes (and why)?
r/Professors on Reddit: What ai detector are you using in your classes (and why)?
1 month ago -
I’m a lecturer looking at adding ai‑detection software for student essays. I’ve seen tools like GPTZero, Turnitin’s, and also Originality AI mentioned in reviews. The last one seems to offer pretty detailed sentence‑level feedback rather than just a score. What are people using in their departments? How reliable has it been and how do you deal with false positives?
Top answer 1 of 30
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None. They’re not reliable. I switched to all in class essays.
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There are no AI detectors that work. I recommend you remove AI from your question entirely: instead of asking, “how do I know if my student used AI to write this?” ask, “how do I know if my student asked another human (friend, family member, tutor, paid agent, etc.) to write this for them?” The steps that will help you answer THAT question — in person assessments, one-on-one meetings, scaffolded writing assignments, etc. — will also help you answer the AI question. There is no magic solution. If you are not in a position where you can take steps to determine whether or not another HUMAN wrote your students’ papers, then you are not in a position to determine whether or not AI wrote your students’ papers. Full stop.
Chrome Web Store
chromewebstore.google.com › detail › hive-ai-detector › cmeikcgfecnhojcbfapbmpbjgllklcbi
Hive AI Detector - Chrome Web Store
Hive's AI-generated Content Detection model allows you to quickly scan any image, video, text, or audio file on the web to determine whether or not it was made by AI. Use Hive AI Detector easily while browsing with three different ways to scan ...