Semrush has been doing SEO since 2008. Their AI Toolkit is their answer to the GEO/LLMO market, bringing their research-grade approach to AI visibility. Mentionable is built for solopreneurs who want simple tracking without learning another enterprise dashboard.
Both tools track 5 LLMs, but they serve different workflows.
Pricing and what you get
Mentionable offers a 7-day free trial on all plans. Starter costs €29/month for 15 prompts across 5 LLMs. Pro costs €89/month for 50 prompts and 3 projects. Agency is €179/month for 100 prompts and unlimited projects.
Semrush AI Toolkit costs $99/month per domain for 25 prompts. Each additional domain is another $99/month. Need 50 more prompts? That's $60/month extra. Adding a team member with prompts costs $258/month.
For tracking one domain, both end up around €89-99/month for similar prompt counts. But for agencies or anyone tracking multiple clients, the math changes fast. Semrush charges $99 per domain. Mentionable's Agency plan covers unlimited projects for €179/month total.
What Mentionable does well
The 7-day free trial lets you test whether AI visibility tracking matters before paying anything. Semrush requires payment from day one.
Flat pricing for multiple projects keeps costs predictable. You know what you're paying whether you're tracking 3 projects or 30.
Prompt suggestions help you get started quickly. Enter your URL, and Mentionable generates relevant prompts. Semrush's Prompt Research is powerful but requires you to do the research work yourself.
The interface is simpler. Semrush's AI Toolkit has six different features: Visibility Overview, Competitor Research, Prompt Research, Brand Performance, Prompt Tracking, and AI Search Site Audit. Mentionable does one thing well: tracks your prompts across LLMs and shows you the results.
What Semrush does well
Prompt Research is genuinely powerful. If you want keyword-research-style discovery for AI prompts, Semrush has it. Find high-opportunity prompts, see AI volume, identify what competitors are winning. It's research-grade tooling for teams who want to dig deep.
Integration with traditional SEO makes sense if you're already in the Semrush ecosystem. Having AI visibility in the same dashboard as your Google rankings helps you see the full picture.
Geographic coverage spans 68,000+ locations. If you need to track how your brand appears in AI responses across specific markets worldwide, that level of granularity is enterprise-grade.
Competitor tracking scales to 50 competitors with share of voice analysis. For understanding your competitive landscape in detail, Semrush offers more depth.
Different workflows for different users
Semrush is built for marketing teams and agencies running comprehensive SEO operations. The AI Toolkit is an add-on to their existing platform, designed for users who need research-grade prompt discovery and enterprise reporting. If you're already paying for Semrush and want to add AI visibility to your workflow, it makes sense.
Mentionable is built for solopreneurs who want to know "does AI recommend me?" without learning another complex dashboard. Simpler scope, simpler pricing, faster to get started.
Which one fits you?
Mentionable works well if you want to try with a 7-day free trial before paying, need multiple projects without per-domain fees, prefer prompt suggestions over manual research, want simple answers without another tool to learn, or you're a solopreneur or small team.
Semrush AI Toolkit works well if you're already using Semrush for SEO, need Prompt Research for discovering opportunities, track global markets with location-specific data, have budget for $99+ per domain, or run an agency with enterprise reporting needs.
If you're not already a Semrush user, starting with their AI Toolkit at $99/month is a significant commitment for something you're not sure you need. Try Mentionable with a 7-day free trial. See if AI visibility tracking adds value. If you find yourself needing prompt research, competitor intelligence at scale, or integration with traditional SEO, Semrush might be worth it later.