Ahrefs vs Mentions.so (2026): Which is better for AI search visibility?

Key takeaways

• Ahrefs is a full-stack SEO platform first. Its AI monitoring (Brand Radar) is a relatively recent addition with fixed prompts and no AI traffic attribution -- useful context, but not built for GEO.
• Mentions.so is purpose-built for AI brand visibility. It tracks mentions across 8 LLMs, shows sentiment, compares competitors, and includes crawler analytics and an insights board for acting on findings.
• Ahrefs starts at $83/mo for a usable plan. Mentions.so has a genuinely free tier (25 prompts, 3 LLMs) and paid plans that start cheaper than Ahrefs.
• If you need backlink analysis, keyword research, or site audits, Mentions.so can't help you. Ahrefs is the clear choice for traditional SEO work.
• For teams whose primary concern is "how does AI talk about our brand and what do we do about it," Mentions.so is more focused and actionable -- with a Kanban-style insights board that Ahrefs doesn't have.
• These tools aren't really direct competitors. Most teams with serious AI visibility goals will end up using both, or pairing one with a dedicated GEO platform.

Overview

Ahrefs

Ahrefs

All-in-one SEO platform with AI search tracking and content tools

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Ahrefs has been the go-to SEO toolkit for serious marketers for years. It's built on what it claims is the web's largest backlink index and keyword database, and 44% of Fortune 500 companies reportedly use it. The platform covers the full SEO workflow: site audits, rank tracking, backlink analysis, keyword research, content gap analysis, and PPC research. More recently, Ahrefs added Brand Radar -- its answer to the growing demand for AI search monitoring. It also launched social media management tools and AI-assisted content features, positioning itself as a broader "AI marketing platform."

The honest read: Ahrefs is excellent at what it's always done. The AI monitoring layer is real but thin compared to dedicated tools.

Mentions.so

Mentions.so

Track brand mentions across AI and the web

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Mentions.so is a newer, focused tool built specifically around AI brand visibility. The pitch is simple: track how AI platforms talk about your brand, understand the sentiment, compare yourself to competitors, and get actionable recommendations to improve. It supports 8 LLMs (ChatGPT, Perplexity, Claude, Grok, Gemini, DeepSeek, AI Overviews, Llama), includes crawler analytics, and has an agency tier with white-label reporting. There's a free plan, which is rare in this space.

It doesn't do traditional SEO. That's a deliberate choice, not an oversight.

Side-by-side comparison

Head-to-head feature deep-dive

AI search monitoring

This is where the comparison gets interesting because both tools claim to do it, but the depth is very different.

Ahrefs Brand Radar monitors AI-generated responses and shows when your brand appears. The limitation is that it uses fixed prompts -- you can't define the specific questions your customers are actually asking. There's also no AI traffic attribution, meaning you can't connect Brand Radar data to actual website visits or revenue. It's a visibility snapshot, not an optimization workflow.

Mentions.so lets you define custom prompts, which matters a lot. A prompt like "what's the best project management tool for remote teams under 20 people" is far more useful than a generic brand query. You get per-LLM breakdowns, sentiment scoring (very positive / neutral / negative), and a view of the actual AI-generated text that mentions your brand. The competitor comparison is real-time and shows visibility percentages across models side by side.

Verdict: Mentions.so is the better AI monitoring tool. Ahrefs Brand Radar is a useful addition to an existing Ahrefs subscription but not a reason to choose Ahrefs over a dedicated AI visibility tool.

Traditional SEO capabilities

No contest here. Ahrefs has spent years building one of the most comprehensive SEO datasets available. Its backlink index is genuinely massive, the keyword explorer covers billions of queries, and the site audit tool catches technical issues that matter for rankings. Rank tracking, content gap analysis, SERP analysis -- all of it is best-in-class or close to it.

Mentions.so does none of this. It's not trying to.

Verdict: Ahrefs wins completely for traditional SEO. If that's your primary need, Mentions.so isn't even in the conversation.

Actionability and recommendations

One thing Mentions.so does that Ahrefs doesn't: it tells you what to do about what it finds. The Insights Board is a Kanban-style workflow where AI-generated recommendations are organized by priority and type (technical, sentiment, citation, narrative). You can move cards through stages, dismiss low-priority items, and track what's been done. It's a lightweight but genuinely useful action layer.

Ahrefs has recommendations built into its site audit and content tools, but nothing equivalent for AI search visibility. If Brand Radar shows your brand isn't appearing in AI responses, Ahrefs doesn't give you a structured path to fix that.

Verdict: Mentions.so is more actionable for AI visibility work. Ahrefs is more actionable for traditional SEO.

Agency and team features

Mentions.so has a proper agency tier: white-label reporting, custom domain hosting, multi-client dashboards, and free client test workspaces. The pitch reports feature is a nice touch for agencies that need to show clients what AI is saying about them before and after a campaign.

Ahrefs supports multiple users and has agency-friendly features, but white-label reporting isn't part of the package. You can share data and reports, but they'll carry Ahrefs branding.

Verdict: For AI-focused agencies, Mentions.so has the better agency setup. For full-service SEO agencies, Ahrefs is still the core tool.

Pricing and accessibility

Ahrefs' cheapest usable plan is $83/mo (Lite). The $29/mo Starter plan is so limited it's mostly useful for occasional lookups. For teams, the Standard plan at $166/mo is where most people land.

Mentions.so has a free tier that actually works -- 25 prompts and 3 LLMs is enough to get a real read on your AI visibility before spending anything. Paid plans are cheaper than Ahrefs' equivalent tiers, though exact pricing for Pro, Business, and Agency isn't fully published.

Verdict: Mentions.so is more accessible for smaller teams and anyone who wants to test before committing.

Crawler analytics

Mentions.so includes a crawler analytics dashboard that shows when AI bots (ChatGPT, Claude, Perplexity, etc.) visit your site, which models are active, and where citation volume is growing. This is genuinely useful for understanding how AI engines discover and re-crawl your content.

Ahrefs has a site audit crawler, but it's focused on traditional search engine bots. There's no equivalent AI crawler log feature.

Verdict: Mentions.so wins this category outright.

Pricing comparison

Note: Mentions.so doesn't publish all tier prices publicly. The free plan is confirmed; paid tier pricing requires signing up or contacting them.

Pros and cons

Ahrefs

Pros:

• The best backlink index and keyword database available
• Covers the entire SEO workflow in one platform
• Brand Radar adds AI monitoring without needing a separate tool
• Trusted by large enterprises; reliable and well-documented
• Strong content and PPC research tools

Cons:

• AI monitoring is limited to fixed prompts -- no customization
• No AI traffic attribution or crawler logs
• No sentiment analysis for AI responses
• Expensive for teams that only need AI visibility tracking
• No free tier worth using

Mentions.so

Pros:

• Free tier lets you test before paying anything
• Custom prompts across 8 LLMs
• Sentiment analysis and competitor comparisons built in
• Kanban insights board makes recommendations actionable
• AI crawler analytics included
• White-label agency features
• AI traffic attribution

Cons:

• No traditional SEO capabilities at all
• Smaller, newer company -- less proven at scale
• Pricing for paid tiers isn't fully transparent
• Prompt limits on lower plans can feel restrictive
• Less brand recognition than Ahrefs

Who should pick which tool

Pick Ahrefs if:

• Traditional SEO (backlinks, keywords, site audits, rank tracking) is your core workflow
• You're already an Ahrefs subscriber and want basic AI monitoring without adding another tool
• You work at a large enterprise that needs a single comprehensive platform
• PPC research and content gap analysis are part of your daily work

Pick Mentions.so if:

• AI brand visibility is your primary concern and you don't need traditional SEO
• You're an agency that needs white-label AI visibility reports for clients
• You want to understand sentiment and competitor positioning in AI responses
• Budget is a constraint and you want to start free
• You need crawler analytics to understand how AI bots interact with your site

Use both if:

• You're a mid-size brand or agency that needs strong traditional SEO AND serious AI visibility tracking. Ahrefs handles the former; Mentions.so handles the latter. They don't overlap much, so there's minimal redundancy.

If you're specifically focused on improving how your brand ranks in AI search results -- not just monitoring but actually fixing gaps and generating content that gets cited -- it's worth looking at Promptwatch as well. It combines AI visibility tracking with content gap analysis and an AI writing agent built around citation data, which neither Ahrefs nor Mentions.so fully covers.

Promptwatch

Track and optimize your brand visibility in AI search engines

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Final verdict

Ahrefs and Mentions.so are solving different problems. Ahrefs is a mature, comprehensive SEO platform that added AI monitoring as a feature. Mentions.so is a focused AI brand visibility tool that skips traditional SEO entirely. The "which is better" question mostly answers itself based on what you actually need: if you're doing SEO, use Ahrefs; if you're tracking AI brand presence, Mentions.so is more capable and cheaper. For teams that need both, the tools complement each other rather than compete.