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Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.
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Originality AI
✓ verifiedPaid
Content-integrity suite pairing an accurate AI-text detector with plagiarism, fact, and readability checks.
2.4M visits/mo13K saves
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GPTZero
✓ verifiedFreemium
AI-content detector aimed at educators, adding plagiarism, grammar and citation checks with claimed high accuracy.
17M visits/mo7.3K saves
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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
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Content Credentials
✓ verifiedFree
C2PA-backed standard and pin that attaches tamper-evident provenance and edit history to digital media.
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
- ✦Content Credentials pin signalling provenance
- ✦Records creation method and edit history
- ✦Works across images, video, audio and documents
- ✦Open specification with a verify tool
- ✦Broad industry adoption via C2PA
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
- →Verifying the origin of online media
- →Labelling AI-generated or edited content
- →Helping creators demonstrate authenticity
- →Countering deepfakes and misinformation
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