What It Does
Detecting AI is a web-based AI content detector that analyzes text for signals associated with AI-generated writing. It is designed for educators, editors, publishers, writers, and developers who need an authorship signal without treating the result as definitive proof.
A typical workflow is straightforward: paste text or upload a TXT, PDF, or DOCX file, run the AI scan, then review the overall score and sentence-level highlights. Users can use those highlighted passages alongside drafts, sources, and other context when deciding whether further review is necessary.
Quick Verdict
- Best for: Reviewing AI-writing signals with sentence-level context
- Skip if: You need a detector with independently verified accuracy data
- Key Advantage: Full-text AI signal highlighting
- Top Alternative: Copyleaks
At a Glance
| Feature | Details |
|---|---|
| Category | AI Content Detector |
| Pricing Model | Freemium |
| Free Tier | Yes |
| Platform | Web |
| API | Yes |
| Primary Strength | Sentence-level AI signal highlighting |
| Input Formats | TXT, PDF, DOCX |
| Integrations | Moodle, Zapier |
Pricing & Plans
- Free: $0 forever. Includes 15,000 characters per check, up to 100 AI detections per day, full-text AI signal highlights, TXT/PDF/DOCX input, 500 to 1,000 words per AI Humanizer rewrite, and 125 words per Fact Checker check.
- Yearly: $7/month equivalent, billed as $84 once per year. Includes unlimited AI detection, 160,000 characters per detector check, 12,000 plagiarism credits per year, unlimited AI Humanizer, Fact Checker, and premium customer support.
- Monthly: $14/month, billed monthly. Includes unlimited AI detection, 160,000 characters per detector check, 1,000 plagiarism credits per month, unlimited AI Humanizer, Fact Checker, and premium customer support.
Note: Prices and plan limits may change. Check the official website for current pricing.
Key Features
- Detects AI signals in GPT-5, GPT-4o, Claude, Gemini, and mixed drafts.
- Highlights AI-like passages directly within the full document.
- Accepts TXT, PDF, and DOCX uploads alongside pasted text.
- Scores eligible sentences independently before calculating the document-level signal.
- Provides AI detection through an API for custom workflows.
- Supports MCP server connections for AI agents checking text during conversations.
Best For
- Reviewing student submissions for passages requiring additional context.
- Triaging contributed editorial drafts before detailed human review.
- Checking publishing submissions for potential AI-generated sections.
- Comparing how revisions change an AI detection signal.
- Adding AI detection to automated developer workflows through the API.
Pros & Cons
Pros:
- Free scanning requires no account.
- Sentence-level highlights provide more context than a standalone percentage.
- Supports common document formats including PDF and DOCX.
- API and MCP options extend detection beyond the web interface.
Cons:
- The free plan limits checks to 15,000 characters and 100 detections daily.
- AI detection remains a probabilistic signal and cannot establish authorship or misconduct.
- Short, translated, heavily edited, and formulaic writing can be harder to classify.
Alternatives & Comparisons
| Alternative | Best For | Key Difference vs. This Tool |
|---|---|---|
| GPTZero | Education-focused AI detection | Provides sentence-, paragraph-, and document-level detection and is used by organizations across education and other sectors. |
| Copyleaks | AI detection plus plagiarism workflows | Combines AI and plagiarism detection, supports 30+ AI-detection languages, and offers browser, Google Docs, LMS, and API options. |
| Originality.ai | Publishers and content teams | Adds plagiarism, content-quality, fact-checking, team, Chrome extension, and API capabilities alongside AI detection. |
Detecting AI fits the AI-detection market as a relatively focused web detector that emphasizes contextual sentence highlighting and a free no-signup workflow.
Choose it when you primarily need document-level AI signals with highlighted passages and do not require the broader plagiarism, publishing, or team-management ecosystem offered by some alternatives.
Frequently Asked Questions
Does Detecting AI support GPT-5, Claude, and Gemini?
Yes. The vendor states that the detector is designed to review GPT-5, GPT-4o, and earlier GPT models, Claude, Gemini, and mixed human-edited or AI-assisted drafts.
Can Detecting AI prove that someone used AI?
No. The vendor explicitly describes its result as a signal rather than proof. Scores should be considered alongside drafts, sources, conversation history, and human judgment.
What files can Detecting AI analyze?
The web detector accepts pasted text and TXT, PDF, and DOCX files.
Does Detecting AI have an API?
Yes. The vendor provides an AI Detector API and also offers an MCP server for connecting AI detection with agent workflows.
Is Detecting AI free?
Yes. The free plan costs $0, requires no account for detection, and allows up to 15,000 characters per check and 100 detections per day.
ToolsPedia Rating
Ratings reflect documented product capabilities and pricing, not hands-on testing.
- Performance & Speed: 4.0/5.0
- Ease of Setup: 4.8/5.0
- Feature Depth: 4.1/5.0
- Value for Price: 4.4/5.0
- ToolsPedia Score: 4.3/5.0
Final Thoughts
Detecting AI is a practical choice for users who want a simple AI detector with document uploads, sentence-level highlights, a generous no-account free tier, and developer access. Its strongest distinction is the emphasis on reviewing highlighted passages instead of treating a single percentage as a final verdict. Start with the free detector if your workflow fits its 15,000-character and 100-detections-per-day limits; consider Copyleaks or Originality.ai if you need broader content-integrity features.
