Free AI Text Detector (AI Checker)
Quickly verify whether text is AI-generated or human-written, with clear scoring and sentence-level breakdowns.
How Okara's AI Detection Tool Works
Detect AI-generated content in three simple steps
Step 1
Paste Content
Copy and paste any text you want to analyze. We support up to 5,000 characters per analysis.
Step 2
AI Processing
Our advanced multi-model system scans for patterns using perplexity and burstiness metrics.
Step 3
Detailed Report
Get a comprehensive analysis score with sentence-by-sentence highlighting and probability metrics.
How To Interpret Your AI Score
Our detection engine provides a detailed breakdown. Here is what the different metrics in your report mean.
Perplexity
Measures how predictable the text is to an AI model. Low scores mean the text is highly predictable (likely AI). High scores suggest complex, human-like word choices.
Burstiness
Measures variance in sentence length and structure. Humans write in bursts of long and short sentences. AI tends to be more uniform and consistent.
Humanity Score
A composite percentage based on stylometric signals like informalness and emotional tone. Higher percentages strongly correlate with human authorship.
Coloured Segments
Our tool highlights specific sentences. Red indicates a sentence is likely AI-generated, while Green marks it as human-written.
Advanced Detection Technology
Built for accuracy, speed, and depth of insight
Multi-Model Analysis
Combines statistical analysis (perplexity/burstiness) with advanced LLM pattern recognition for superior accuracy.
Sentence Highlighting
Don't just get a score. See exactly which sentences are likely AI-generated with granular highlighting.
Detailed Metrics
View deep insights including perplexity, burstiness, and humanity scores for every analysis.
Chunk-Based Scanning
Longer texts are intelligently split into analyzing chunks to maintain context and accuracy throughout.
Privacy Focused
Your content is analyzed securely and never used to train our models. What you check stays private.
Lightning Fast
Get comprehensive results in seconds, optimized for both short clips and long essays.
Why Okara's AI Detector?
Discover what makes our detection engine more accurate, secure, and reliable than other tools on the market.
Dual-Engine Accuracy
We don't rely on a single check. We combine statistical analysis (perplexity/burstiness) with LLM sentence verification for unmatched accuracy.
Lightning Fast Processing
Get deep insights and granular sentence breakdowns in seconds, even for long essays and reports up to 10,000 characters.
Clear Actionable Reports
Understand exactly why text was flagged with transparent scoring metrics, rather than just receiving a vague generic percentage.
Bank-Grade Privacy
We never store your text, and we never use your proprietary content or essays to train our own AI models.
Free and Accessible
Unlike other premium tools, Okara provides enterprise-grade AI detection technology completely free with no required sign-ups.
Chunk-Based Scanning
For longer documents, we intelligently chunk text to maintain context, ensuring accurate detection throughout the entire piece.
Who Can Benefit from Our AI Detection Tool?
From classrooms to boardrooms, Okara's AI Detector helps professionals verify authenticity across all types of written content.
Educators & Institutions
Ensure academic integrity by verifying student essays, assignments, and research papers for AI-generated content.
SEO Professionals
Avoid search engine penalties. Check outsourced content to ensure your website pages rank well with authentic text.
Editors & Publishers
Maintain your publication's reputation and quality standards. Verify submissions from freelance writers instantly.
Recruiters & HR
Assess candidate authenticity by verifying whether covering letters, assessment tasks, and resumes were AI-generated.
Marketing Agencies
Deliver high-quality, human-written copy to clients. Audit content from your copywriting team before publishing.
Business Owners
Ensure internal and external communications, from investor updates to press releases, sound professional and human.
Detection For Text Generated From Any AI Tool
Okara's multi-layered detection engine isn't hardcoded to one model. It looks for fundamental statistical and structural signals common across all Large Language Models (LLMs). This means we accurately detect AI content regardless of the tool used to generate it.
Limitations & Responsible Use
We build state-of-the-art detection technology, but it's important to understand how to use it ethically and accurately.
No Detector is 100% Perfect
Even with advanced dual-engine technology tracking perplexity, burstiness, and complex statistical signals, false positives (flagging human text as AI) and false negatives (missing AI text) can occur. AI language models are designed specifically to mimic human writing, making detection an ongoing arms race.
Short text snippets (under 200 words) are particularly difficult for any tool to classify accurately due to a lack of statistical data points. This is why our tool enforces a minimum character limit and focuses its granular detection on detailed blocks of text.
Use as a Signal, Not Sole Proof
Our AI detector should be used as one part of a holistic review process. Do not make definitive, punitive decisions (like failing a student or firing an employee) based solely on an AI detection score. We strongly recommend using our granular sentence breakdowns to initiate a conversation about the writing process, rather than treating the percentage as an absolute ruling.
We prohibit the use of our detection tool for fraudulent or manipulative intent. Do not attempt to use Okara's detector to maliciously game academic systems, falsify results, or assist in generating deceptive content designed to evade verification tools.
How Okara Protects Your Data While Others Don't
Many free tools secretly use the text you paste to train their own AI models. We take a distinctly different, privacy-first approach.
The Industry Standard Problem
When you paste a proprietary essay, a sensitive corporate document, or an unpublished article into most free AI checkers, that text enters their database.
Many companies then use your text as training data for their next-generation Large Language Models, compromising your privacy and intellectual property without your explicit consent.
The Okara Promise
No Storage or Logging
Your text is held in memory purely for the seconds it takes to analyze. The moment you close the tab, the data evaporates.
Never Used for Training
We explicitly forbid our detection engine from using user-submitted queries to train or build subsequent LLM models.
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Ready to verify your content?
Start using our advanced AI detection models today to ensure authenticity and originality.