ContentBrief.io vs Originality.ai
ContentBrief.io
contentbrief.io
Originality.ai
originality.aiSide by side
| Figure | ContentBrief.io | Originality.ai |
|---|---|---|
| Price from | $29/mo | $12.95/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 5 | 7 |
| Spec score · Content Optimization Software | 8.4 (#9) | 8.9 (#5) |
| Support | Agency Scale includes priority support, and the terms and privacy policy provide [email protected] for inquiries. | The pricing page says Pro support issues are typically resolved within 24 hours or less and Enterprise priority support issues typically within an hour or less. |
| What it does | ContentBrief.io generates AI-powered SEO content briefs by analyzing search results, extracting keyword data, and producing structured outlines. | Originality.AI is a cloud content-integrity platform combining AI-text detection, plagiarism checking, fact checking and readability scoring. |
Plans
ContentBrief.io
- FreeFree
- OpenClaw Starter Kit$6.99, paid once
- Freelancer Pack$29 a month
- SEO Content OS$34, paid once
- Agency Scale$99 a month
Originality.ai
- BasicFree
- Pro$12.95 a month
- Pro (annual billing)$12.95 a month
- Pro (monthly billing)$14.95 a month
- Enterprise$136.58 a month
- Enterprise (annual billing)$136.58 a month
- Enterprise (monthly billing)$179 a month
In their own words
ContentBrief.io
ContentBrief.io generates AI-powered SEO content briefs from search results. Enter a keyword to analyze the top 10 ranking pages, including their word counts, headings, content structure, and gaps. Briefs can include People Also Ask questions, related searches, and semantic keywords. An outline builder creates H2 and H3 structures with talking points based on ranking pages. The workflow moves from keyword entry to brief review and export, and generation takes about 30 seconds. Briefs can be copied or exported to a writer; PDF export is included in Freelancer Pack, while Agency Scale includes API access. The service is aimed at content teams, SEO agencies, freelance writers, and founders. Freelancer Pack costs $29 a month for 10 briefs per month. Agency Scale costs $99 a month for 50 briefs per month, team sharing, priority support, and API access. Unused briefs do not roll over, and subscriptions renew automatically unless cancelled before renewal.
Originality.ai
Originality.ai provides tools for checking AI-generated text, plagiarism, facts, readability, grammar, spelling and content quality. Its free Basic plan costs $0.00 per free and provides three AI scans per day, with up to 2,000 words per scan. The AI detector offers configurable allowances of 0%, 5%, 15%, 25% or 40%. A website scanner can crawl a site, identify pages likely to contain AI-generated content and run scheduled scans. The browser extension scans Google Docs, web pages or selected text, and includes writing replay, typing behavior insights and shareable reports. A REST-based API submits text for AI and plagiarism scans and returns detailed results; the maker says AI detection supports 30 languages. API AI scans require at least 50 words, and the help page says accuracy decreases below 100 words. Originality.ai describes detection results as probabilistic estimates that may produce false positives or false negatives, not conclusive proof. Pro costs $12.95 per month billed yearly, with a monthly option at $14.95 per month. The service is available through web, API and extension.