Semrush AI Visibility vs Ahrefs Brand Radar
Both bring AI visibility into an SEO suite you may already pay for. Semrush tracks a small set of your own prompts; Ahrefs adds a 449M-prompt index for market-wide research.
Semrush AI Visibility ToolkitThe Semrush AI Visibility Toolkit tracks brand mentions and prompts across AI engines, with prompt research and AI-readiness checks in Site Audit.Full review →
Ahrefs Brand RadarAhrefs Brand Radar tracks brand visibility across AI platforms using your own prompts and an index of 449M+ prompts a month.Full review →
Starting price$99/month per domain, billed annuallyCustom prompts from $50/month; AI Visibility Index $199/month
Tracked prompts25 on the entry planCustom prompts, plus a 449M+ monthly prompt index
Engines statedChatGPT, Google AI, Gemini, PerplexityNot listed on the product page
ExtrasPrompt research, AI checks in Site AuditAI traffic, bot visits, YouTube/TikTok/Reddit sources
Agent access—Through the Ahrefs MCP server
Free option7-day trial (per the pricing page)Free prompts on some Ahrefs plans
Choose Semrush AI Visibility Toolkit if
- You already use Semrush for SEO
- You want AI-readiness checks inside your site audit
- You track a small, known set of prompts
Choose Ahrefs Brand Radar if
- You want to explore prompts you haven't thought of
- You need AI traffic and bot-visit data
- Your agents use the Ahrefs MCP server
Bottom line
Pick the one in the suite you already pay for. If you need market-wide research rather than tracking your own prompts, Ahrefs' index is the bigger difference.