SemrushThe unified SEO and AI search solution
vs
SEOnautOpen source SEO auditing and reporting tool
Comparison · SEO Tools · weekly run Nov 2
Semrush vs SEOnaut
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Semrush is the stronger AI pick in SEO Tools: it has a visibility score of 64.3 versus 0 for SEOnaut.
Choose Semrush if…
- You want the brand AI engines rank higher (64.3 vs 0)
- Widely recommended as a top-tier all-in-one platform for broad suites
- Strong keyword research, competitor analysis, and site auditing
- Strongest overall all-in-one SEO choice for most businesses
Choose SEOnaut if…
No clear advantage in the published data.
AI visibility side by side
Latest weekly run · Nov 2
| Metric | Semrush | SEOnaut |
|---|---|---|
| Visibility score | 64.3% | 0% |
| Change vs last week | New | New |
| Rank in SEO Tools | #1 | #51 |
| Share of voice | 12.3% | 0% |
| Mentions this run | 63 | 0 |
| Positive in AI answers | 49% | — |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Semrush 0pp · SEOnaut 0pp over 0 weekly runs.
Engine by engine
Semrush leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
SemrushSEOnaut
Head to head in AI answers
0 engine answers name both brands
0Semrush ranked higher
0SEOnaut ranked higher
Features, pricing & fit
| Dimension | Semrush | SEOnaut |
|---|---|---|
| Pricing model | Flat tiers | — |
| Entry price | Free; paid from $139 / mo | — |
| Free plan | Yes | — |
| Deployment | — | Self-hosted or cloud-hosted |
| Support | Help Center and Basic Onboarding, Enterprise SLA and 24/7 support, Dedicated account manager | Email support at hello@seonaut.org |
| Founded | 2008 | — |
| Headquarters | Boston, MA | — |
| Employees | 1,001–5,000 | — |
| Funding | IPO | — |
| Best for | Freelancers and small businesses through to agencies and enterprises managing multiple brands, regions and teams. | SEO professionals and developers who want a free, customizable audit tool, and organizations that want to self-host it |
Plans side by side
Semrush
Free$0month
SEO$139month
Starter SEO + AI Search$199month
Pro+ SEO + AI Search$299month
Advanced SEO + AI SearchCustomcustom
EnterpriseCustomcustom
SEOnaut
Pricing not available.
Pros and cons
Themes from the AI answers that mention each brand
Semrush
- Widely recommended as a top-tier all-in-one platform for broad suites
- Strong keyword research, competitor analysis, and site auditing
- Strongest overall all-in-one SEO choice for most businesses
- Good value with discounts on annual billing and free trial
- Useful AI search visibility and rank tracking
- Pricing is high, with enterprise-style suites costing around $100 or more per month
- Less comprehensive than Ahrefs for backlinks in some comparisons
SEOnaut
Profile in progress.
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Semrush vs SEOnaut”, https://slateindex.ai/compare/semrush-vs-seonaut, data of Nov 2, 2026. Licence: CC BY 4.0.