ContentBrief.io vs SemanticOS
ContentBrief.io
contentbrief.ioSemanticOS
semanticos.ayonchy.comSide by side
| Figure | ContentBrief.io | SemanticOS |
|---|---|---|
| Price from | $29/mo | $59/mo |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | — |
| Plans published | 5 | 5 |
| Spec score · Content Optimization Software | 8.4 (#9) | 7.5 (#48) |
| Plan limits | Unused briefs do not roll over to the next billing period, and subscriptions renew automatically unless cancelled before renewal. | Starter includes one project and 19 modules; Pro includes five projects and 51 modules; Agency includes unlimited projects and all 87 modules. |
| Support | Agency Scale includes priority support, and the terms and privacy policy provide [email protected] for inquiries. | The site lists an email contact at [email protected] and a WhatsApp contact at +880 1677-679416. |
| What it does | ContentBrief.io generates AI-powered SEO content briefs by analyzing search results, extracting keyword data, and producing structured outlines. | SemanticOS turns a domain into an entity-based topical map of pillar, cluster, and supporting pages with search intents, URL paths, and internal links. |
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
SemanticOS
- 7-day trial$7, paid once
- Starter$59 a month
- Pro$99 a month
- Agency$199 a month
- Lifetime$1,999, paid once
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.
SemanticOS
SemanticOS has no write-up on Specifiction yet; its figures are above.