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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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SideKicker AI
✓ verifiedFree trial
AI writing tool that humanizes AI-generated text, detects AI authorship, and checks for plagiarism in one workflow.
508K visits/mo
Pricing
Pro: $14.95/month (2,000 credits/mo)
Enterprise: $179/month (15,000 credits/mo)
No public pricing
Monthly: $29.99/mo (discounted from $49)
7-day trial: $1.95 then $39.99/month
Annual: $16.60/mo (discounted from $49)
Free trial available
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
- ✦AI text humanizer/rewriter
- ✦AI-generated content detector
- ✦Plagiarism checker against web sources
- ✦Brand-tone-aware rewriting
- ✦Bulk paste of full documents or sections
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
- →Editors polishing AI-assisted drafts
- →Content writers finalizing client-facing copy
- →Office managers rewriting AI-produced reports
- →Writers checking work for originality before publishing
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