Sentence-by-Sentence Forensic Heatmap
Color-coded highlights reveal exactly which sentences trigger AI detection versus authentic human writing.
Free AI Content & Text Detector
Free AI Content Detector — Check ChatGPT & Claude Text
Accurately detect whether text was generated by AI or written by a human. Features sentence-by-sentence heatmaps, perplexity scoring, and burstiness cadence metrics.
Input Text0 words
Try sample:
0 characters•~1 min read
How Havam AI Content Detector Works
Unlike basic keyword counters, Havam analyzes deep mathematical and stylistic properties intrinsic to Large Language Models (LLMs).
Perplexity & Word Predictability
Measures token predictability. LLMs statistically select high-probability words, whereas authentic human authors introduce creative vocabulary and unexpected phrasing.
Burstiness & Cadence Variance
Human writing naturally varies between punchy 4-word statements and 25-word complex observations. AI models cluster around uniform 15-20 word sentences.
Zero Data Retention Privacy
Your text is analyzed strictly in transient runtime memory. We never store, log, sell, or use your writing to train future AI models.
AI Content Detector
Why Choose Havam AI Content Detector
Perplexity & Burstiness Scoring
Measures vocabulary predictability and sentence rhythm variance—the exact metrics used by Turnitin and GPTZero.
Multi-Model AI Detection
Trained to detect patterns across ChatGPT (GPT-3.5, GPT-4, GPT-4o), Claude 3.5, Google Gemini, and Llama.
Instant One-Click Humanizer Transfer
Easily transfer flagged AI text directly into our free AI Text Humanizer to naturalize tone and cadence.
100% Free with No Sign-Up
Unlimited scans with no paywalls, subscriptions, credits, or account registrations required.
Strict Zero-Retention Privacy
Your writing is processed strictly in memory and never saved, logged, or utilized to train machine learning models.
Quick Guide
How to Detect AI-Generated Text Online
- 1
Paste your text or upload a document
Paste your article, essay, or email into the editor, or upload a .txt file (minimum 5 words).
- 2
Run instant AI forensic analysis
Click 'Check for AI Content' to evaluate vocabulary perplexity, sentence burstiness, and formulaic AI markers.
- 3
Review heatmap & export report
Explore sentence-by-sentence highlights, view detected clichés, and humanize flagged sections with 1 click.
Private & Confidential Document Analysis
Your submitted essays, reports, and creative drafts are never saved to databases or used for model training.
FAQ
Frequently Asked Questions
How accurate is the Havam AI Content Detector?
Havam combines deep neural linguistic analysis with statistical perplexity (word choice unpredictability) and burstiness (sentence cadence variance). It accurately identifies formulaic structures common to modern LLMs while minimizing false positives.
Can it detect text from ChatGPT-4o, Claude 3.5, and Gemini?
Yes. Our detector evaluates structural and syntactic characteristics shared across state-of-the-art models including OpenAI ChatGPT, Anthropic Claude, Google Gemini, and Meta Llama.
What do the Perplexity and Burstiness metrics mean?
Perplexity measures word choice diversity and surprise—AI tends to choose statistically predictable words. Burstiness measures variation in sentence length—humans naturally alternate between short, punchy phrases and long, compound sentences, whereas AI maintains uniform sentence lengths.
Is there any word count limit or subscription cost?
Havam AI Detector is 100% free forever. You can scan texts up to 35,000 characters (~5,000 words) per check without any fees or account creation.
Will my text be stored or used to train AI models?
Never. Your intellectual property and privacy are strictly safeguarded. Text is analyzed in ephemeral runtime memory and immediately purged.
How can I fix text that gets flagged as AI?
Click the 'Humanize Text' button directly in your results to transfer your text into our free AI Text Humanizer, which restructures cadence and replaces robotic clichés while preserving your core meaning.