Analysis Results
Key Indicators
- No text analyzed yet.
Unicode Artifacts
Formatting Patterns
Stylistic Features
Lexical Analysis
Emoji Analysis
Why Choose Our AI Text Detector
Accuracy
Our detection algorithm identifies subtle AI writing patterns with industry-leading precision, minimizing false positives for both academic and professional content.
Instant Analysis
Results in under 0.1 seconds. Our lightweight, optimized detector processes text with exceptional speed without compromising on thoroughness.
Complete Privacy
All processing happens directly in your browser. We never upload, store, or save your text on any servers, ensuring 100% privacy and security.
No Limits or Fees
No sign-ups, no word count limits, no hidden costs. Detect AI in any volume of text, as frequently as needed, completely free.
Multi-Model Detection
Identifies content from all major AI writing models including ChatGPT, GPT-4, Gemini, Claude, and Llama with regular algorithm updates.
Detailed Analysis
More than just a score—see exact markers of AI generation including phrasing patterns, lexical diversity metrics, and stylistic anomalies.
AI Detection Applications
Academic Integrity
- Verify student-written assignments
- Ensure originality in research papers
- Support ethical AI use in education
Content Creation
- Maintain authentic writing voice
- Screen guest-contributed content
- Avoid AI penalties from search engines
Digital Marketing
- Verify authenticity of marketing copy
- Ensure compliance with disclosure rules
- Protect your brand reputation
Communication Review
- Screen customer service messages
- Identify AI-generated correspondence
- Maintain authentic team communication
How Our Detection Works

Our AI writing detector analyzes text across multiple dimensions that reveal AI generation patterns, providing both an overall probability score and specific indicators.
The analysis includes checking for unusual patterns in word usage, sentence structure variations, stylistic consistency, and subtle linguistic markers that differentiate AI-generated content from human writing.
Detection Limitations
While our AI writing detector provides industry-leading accuracy, we believe in being transparent about the inherent limitations of AI content detection technology:
- Highly Edited AI Text: Extensively human-edited AI-generated content can sometimes bypass detection by our AI checker tool.
- Very Short Texts: Texts under 150 characters may not contain sufficient patterns for conclusive AI detection.
- Mixed Content: Text that combines both human and AI writing can be challenging to classify definitively.
- Specific Technical Content: Highly specialized or technical writing following rigid formats may show false positives.
- Evolving AI Models: As AI writing technology evolves, detection methods must continuously adapt. Our GPT detector is regularly updated to match new AI capabilities.
We are committed to maintaining the most accurate AI text checker available by continuously improving our AI content detection algorithms as language models evolve.
FAQ
How accurate is IsThisAiWritten.com?
Our AI text detector achieves high accuracy in identifying AI-generated content from major language models like ChatGPT, GPT-4, Gemini, and Claude. This industry-leading accuracy is the result of our advanced multi-layered detection system that analyzes numerous patterns unique to AI writing.
Is the AI detector really free? Are there any limits?
Yes, our AI detector is completely free with no word count limits. There are no hidden fees, no required sign-ups, and no restrictions on usage frequency. You can analyze as much text as you need, whenever you need it.
Do I need to register or create an account?
No registration is required. Simply visit our website, paste your text, and get instant results. We've designed the service to be as frictionless as possible.
Is my text safe? Do you store my data?
Your text remains 100% private. Our detector processes all text directly in your browser (client-side), meaning your content never leaves your device. We don't upload, store, or analyze your text on our servers, ensuring complete privacy and security for sensitive documents.
What AI models can your AI content detector identify?
Our AI content detection tool can identify text generated by all major AI writing models, including ChatGPT (3.5 and 4), GPT-4, Google's Gemini (formerly Bard), Anthropic's Claude, Meta's Llama, and many others. We continually update our detection algorithms to stay current with new AI models as they emerge.
Is this an "AI text detector" or can it detect other AI content?
IsThisAiWritten.com is primarily an AI text detector, designed to analyze written content. For AI image detection or AI code detection, specialized tools would be required. Our focus is providing the most accurate free AI detector for text.
How does this AI content detection tool compare to others?
While many AI detector tools exist, IsThisAiWritten.com prioritizes industry-leading accuracy, instant client-side processing for complete privacy, and truly unlimited free use. We believe our combination of speed, accuracy, and privacy makes us a top choice for AI content detection.
Can this tool be used as an "anti AI detector" to bypass detection?
No, IsThisAiWritten.com is designed to detect AI-generated content, not to help users evade detection. We promote ethical AI use and content authenticity.