Compare tools
Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.
⇄ Comparison dimension — pick the market you're actually shopping in
✕
Originality AI
✓ verifiedPaid
Content-integrity suite pairing an accurate AI-text detector with plagiarism, fact, and readability checks.
2.4M visits/mo13K saves
✕
GPTZero
✓ verifiedFreemium
AI-content detector aimed at educators, adding plagiarism, grammar and citation checks with claimed high accuracy.
17M visits/mo7.3K saves
✕
AI Detector Writer
✓ verifiedFree
Free AI content detector that flags AI-written passages in pasted text or uploaded files, with sentence highlighting and PDF reports.
125K visits/mo
✕
ZeroGPT.Tools
✓ verifiedFree
Free, no-signup AI content detector that scores ChatGPT, Gemini, Claude, and other AI text, with a Chrome extension for webpage checks.
90K visits/mo
Pricing
Pro: $14.95/month (2,000 credits/mo)
Enterprise: $179/month (15,000 credits/mo)
No public pricing
No public pricing
No public pricing
Core features
- ✦AI-content detector with sentence-level highlighting
- ✦Plagiarism checker
- ✦Fact, grammar, and readability checkers
- ✦Chrome extension with writing replay
- ✦Team management and API access
- ✦Detects AI text from major LLMs (ChatGPT, Claude, Gemini, Llama)
- ✦Sentence-level highlighting with explanations
- ✦Plagiarism and grammar checking
- ✦Hallucination and citation verification
- ✦Authorship/writing-process verification
- ✦Integrations for Chrome, Google Docs, Canvas and API
- ✦Free AI content detection
- ✦Sentence-level AI highlighting with gauges
- ✦Batch file upload
- ✦Multi-language support
- ✦PDF report generation
- ✦Free AI content detection, no signup required
- ✦Supports detection across many AI models (ChatGPT, Gemini, Claude, Copilot, etc.)
- ✦Sentence-level DeepScan highlighting
- ✦File upload for document checks
- ✦Chrome extension for in-browser checking
- ✦Up to 2,000 words per scan
Use cases
- →Detect AI-generated text in submissions
- →Check content for plagiarism
- →Verify facts before publishing
- →Prove authorship of original writing
- →Run content QA at scale for agencies
- →Checking student work for AI-generated content
- →Verifying authentic authorship in classrooms
- →Screening submissions for publishers and recruiters
- →Detecting AI text through the API in other apps
- →Checking documents for AI-generated text
- →Verifying originality across languages
- →Batch-scanning multiple files
- →Quickly checking if an article was AI-written
- →Verifying student assignments for AI content
- →Screening web content while browsing via the Chrome extension
- →Free alternative to paid AI detectors
Visit