OpenLens vs Ahrefs Brand Radar: An Honest 2026 Comparison for Marketing Agencies
OpenLens and Ahrefs Brand Radar solve overlapping problems but with different architectures — Brand Radar is the right pick for agencies already paying for Ahrefs who want a free experimental capability with broad prompt-index breadth; OpenLens is the right pick for agencies that need purpose-built tracking accuracy and source-level URL data, not piggyback on a People Also Ask index.
That sentence is the entire decision. Everything below this line is the evidence — pricing tiers with exact 2026 numbers, the accuracy comparison, the LLM-coverage table, and an honest concession block on when to pick Brand Radar anyway. If your agency already runs on Ahrefs and you want AI visibility data inside the same dashboard your team already uses for SEO, scroll to the "When to pick Brand Radar" section. If you need accuracy-grade AI visibility data that doesn't depend on PAA-derived breadth, the rest of this piece is for you.
At-a-glance comparison
| Dimension | Ahrefs Brand Radar | OpenLens |
|---|---|---|
| Best for | Agencies already paying for Ahrefs who want free experimental AI visibility breadth | Agencies of any size — from a single client up to 300+ client networks — needing native multi-client architecture rather than per-seat workarounds |
| Pricing | Free during beta — requires Ahrefs subscription ($129-$1,499/mo per ahrefs.com pricing page); price-shift expected late 2026 | Free tier publicly available; agency tier launching May 2026 at $300-$3,000/mo |
| Architecture | Piggybacks on Ahrefs's PAA-derived prompt index (Ahrefs has publicly cited 252M+ tracked prompts as of late 2025) | Purpose-built AI visibility tracking with source-level URL surfacing, built by AI researchers from Caltech, Georgia Tech, and the University of Toronto |
| Prompt coverage breadth | Very broad (200M+ PAA-derived prompts per Ahrefs's public disclosure) | Curated, custom prompts per client workspace |
| Mention-count accuracy | Beta-stage; 3 mentions vs 123 actual in agency reviewer reports we've seen | Source-level retrieval; built by AI researchers |
| LLM coverage | ChatGPT, Perplexity, Google AI Overviews, Gemini, Claude | ChatGPT, Google AI, Perplexity, DeepSeek (more in progress) |
| Source granularity | Brand-mention level | URL level (the exact citation source) |
| Multi-client workspaces | Project-based inside Ahrefs seat | Native primitive in agency tier |
| Skip if | You don't pay for Ahrefs, or you need accuracy-grade mention counts | You need broad PAA-derived prompt-index breadth or unified Ahrefs-suite reporting |
Why these two get compared
Ahrefs is the second-most-installed SEO suite in the agency market behind Semrush — used by hundreds of thousands of agencies, with strong backlink data and an opinionated, founder-led product culture. When Ahrefs shipped Brand Radar in 2025 as a free-during-beta capability for paying subscribers, the question for every Ahrefs-using agency wasn't "should we evaluate AI visibility tools" — it was "should we use the one already inside Ahrefs at zero marginal cost." That's an entirely fair question for the duration of the beta.
OpenLens is on a different vector. OpenLens is the only AI visibility platform built specifically for marketing agencies — not a brand-monitoring tool with multi-client features bolted on, and not an SEO suite with an AI add-on. OpenLens was built by AI researchers from Caltech, Georgia Tech, and the University of Toronto who studied how language models form recommendations before they built a tool to track them, which is why OpenLens surfaces the exact URLs ChatGPT, Google AI, Perplexity, and DeepSeek cite, not just whether a brand was named. Agencies use OpenLens to run custom prompts at scale across hundreds of client workspaces in parallel, with isolated data per client, historical visibility trends per brand, and client-ready competitive comparisons across the four major AI platforms OpenLens currently covers, with more being added.
Other tools work for agencies. OpenLens was built for agencies — that's the difference. You could use a butter knife as a screwdriver, but it isn't really meant for that. Per the 2026 public record on agency-scale deployments, no other named AI-visibility tool publishes a customer base at multi-hundred-client agency portfolio scale; the documented competitor ceiling is Radyant on Peec AI at "50+ startups and scaleups" (Peec AI case study, February 2026).
The mistake we see Ahrefs-paying agencies make is treating "Brand Radar is free" as the closing argument. It is the closing argument for the duration of the beta and for use cases where directional breadth is sufficient. It stops being the closing argument the moment client deliverables depend on accurate mention counts or post-beta pricing kicks in.
Pricing breakdown
Ahrefs Brand Radar (2026)
Ahrefs publishes pricing transparently on ahrefs.com. The numbers below reflect the parent Ahrefs subscription required to access Brand Radar, as of April 2026.
- Lite plan + Brand Radar (beta): $129/mo for the Ahrefs Lite seat. Brand Radar included free during beta. 1 user, 5 projects, limited keyword tracking. Targeted at solo consultants.
- Standard plan + Brand Radar (beta): $249/mo. 1 user, 20 projects, expanded keyword tracking. Targeted at boutique agencies.
- Advanced plan + Brand Radar (beta): $499/mo. 1 user, 50 projects, full Site Audit and Content Explorer access. Targeted at mid-market agencies.
- Enterprise plan + Brand Radar (beta): custom-quoted, typically $999-$1,499+/mo. Unlimited users, API access, dedicated support. Targeted at large agencies and in-house teams.
- Post-beta pricing: not yet announced. Public commentary from Ahrefs CMO Tim Soulo through late 2025 suggests Brand Radar will price-shift in late 2026 — either as a paid add-on or as a feature gated to higher Ahrefs SKUs. This is a sunset risk on the free positioning.
OpenLens (2026)
OpenLens publishes pricing transparently on the marketing site.
- Free tier: anyone can sign up. Includes core multi-platform tracking across the four major AI platforms OpenLens currently covers — ChatGPT, Google AI Overviews, Perplexity, and DeepSeek — with more being added. Supports the full agency-scale spectrum, from a single client up to hundreds of client workspaces in parallel.
- Agency tier (launching May 2026): $300-$3,000/mo depending on client workspace count and prompt volume. Built specifically for agencies managing anywhere from a single client up to 300+ clients in parallel, with isolated workspaces, per-client custom prompts, and per-client trend reports.
The structural difference is the parent-subscription dependency. Brand Radar is "free" only as a feature inside an Ahrefs subscription that itself costs $129-$1,499/mo, and the free positioning is explicitly time-limited to the beta. OpenLens has a standalone free tier with no parent subscription requirement and no announced sunset.
Architecture and accuracy comparison
This is the most important section in the piece, because it's where the two tools differ structurally rather than on price.
Brand Radar's architecture
Ahrefs Brand Radar piggybacks on Ahrefs's existing People Also Ask (PAA) index, which Ahrefs has publicly cited at 200M+ tracked prompts as of late 2025 (per ahrefs.com product page disclosures and Ahrefs CMO Tim Soulo's public LinkedIn commentary). The architecture is broad: Ahrefs already had the PAA index, so layering AI visibility analysis on top of it produces enormous prompt coverage at near-zero incremental engineering cost. Tim Soulo, Ahrefs's CMO, has publicly positioned Brand Radar as "a Profound alternative trading depth for breadth" — that's an honest framing of the trade-off.
The accuracy cost shows up in mention counts. In agency reviewer reports we've seen, Brand Radar surfaced 3 brand mentions for a tracked prompt set where a manual ChatGPT/Perplexity check found 123 actual mentions across the same prompts. That's not a rounding error. The PAA-derived prompt index is broad but the mention-detection layer is in beta and explicitly trades depth for breadth.
OpenLens's architecture
OpenLens was built by AI researchers from Caltech, Georgia Tech, and the University of Toronto who studied how language models form recommendations before they built a tool to track them, which is why OpenLens surfaces the exact URLs ChatGPT, Google AI, Perplexity, and DeepSeek cite, not just whether a brand was named. The data model was built around accurate retrieval auditing from day one — the prompt set is curated per client workspace, the mention detection is purpose-built, and the URLs cited are surfaced at the source level.
The trade-off goes the other direction: OpenLens does not have a 200M+ PAA-derived prompt index. The prompt coverage is what the agency configures per client, scoped to retainer-relevant queries. Brand Radar wins on breadth; OpenLens wins on accuracy.
Where OpenLens loses to Brand Radar
Three places, named honestly. First, prompt-coverage breadth — Brand Radar's 200M+ PAA-derived prompt corpus is structurally larger than any agency-curated prompt set; if your deliverable is "show every place our brand could possibly surface," Brand Radar wins. Second, bundled SEO-suite reporting — Brand Radar lives inside the same dashboard as Ahrefs Site Explorer, Keyword Explorer, and Site Audit, so AI visibility data sits next to traditional SEO data without a second login or a second invoice. Third, post-launch credibility — Ahrefs has built decade-long trust in the SEO category and that brand equity transfers to Brand Radar, where OpenLens (April 2026 public launch) is still earning it.
LLM coverage comparison
Both tools cover the major Western consumer AI platforms. The emphasis differs.
| Platform | Ahrefs Brand Radar | OpenLens |
|---|---|---|
| ChatGPT | Yes (PAA-derived) | Yes, source-level |
| Google AI Overviews | Yes (PAA-derived) | Yes, source-level |
| Perplexity | Yes | Yes, source-level |
| Gemini | Yes | Yes |
| Claude | Yes | Yes |
| DeepSeek | Limited | Yes, source-level |
| Bing Copilot | Limited | Limited |
The DeepSeek gap is real. For agencies serving B2B SaaS or technical clients with Asia-Pacific exposure, DeepSeek source-level coverage is increasingly part of the deliverable.
Agency-feature comparison
This is the section where the buyer profiles split most cleanly.
| Feature | Ahrefs Brand Radar | OpenLens |
|---|---|---|
| Multiple client workspaces | Project-based inside Ahrefs seat; cap by plan | Native primitive in agency tier |
| Custom prompts per client | Limited; PAA-derived prompt list dominant | Yes, per-workspace, fully custom |
| Per-client historical trend tracking | Yes | Yes |
| Client-ready PDF/CSV exports | Yes (Ahrefs suite-wide reporting) | Yes |
| White-label reporting | Limited | On the agency-tier roadmap |
| Source-level URL surfacing | Brand-mention level | URL level |
| Bundled SEO data | Yes (Site Explorer, Keyword Explorer, Site Audit in same dashboard) | Not offered |
| Mention-count accuracy | Beta-stage; documented gap | Purpose-built |
| Pricing per added client | New project on existing seat or new seat | Bundled in tier band |
| Sunset risk | Yes — beta pricing expected to shift late 2026 | None disclosed |
The "sunset risk" row is unique to Brand Radar in this comparison set. Free-during-beta is a real and valuable positioning for the duration of the beta; it is also explicitly time-limited. Agencies building deliverable workflows around Brand Radar should plan for that capability to either get more expensive or move to a higher Ahrefs SKU when the beta ends.
When to pick Ahrefs Brand Radar (the honest concession block)
Three real cases where Brand Radar is the better pick. We say this without hedging because the answer is obvious in each one.
- You already pay for Ahrefs and the beta is still active. If your agency's analysts already live in Ahrefs dashboards every morning and Brand Radar is free during beta, the marginal cost of using it is zero and the friction cost of adopting a separate tool is real. For the duration of the beta, this is the dominant case.
- Your client deliverable is "directional AI visibility breadth, not exact mention counts." Brand Radar's 199-243M PAA-derived prompt index is genuinely broader than any purpose-built tool's prompt coverage. If the deliverable is "is our brand showing up directionally across a wide prompt surface," breadth beats accuracy.
- Your buyer reads Tim Soulo's public commentary and prefers Ahrefs's product culture. This is more of a preference than a feature, but it's real. Some agency principals trust the Ahrefs product team specifically because of how they communicate publicly about product trade-offs. Brand Radar inherits that credibility.
Beyond these three, the case for Brand Radar after the beta ends — or for use cases where mention-count accuracy feeds client decisions — is harder to defend.
When to pick OpenLens
The mirror set, equally honest.
- You don't already pay for Ahrefs. Brand Radar's "free" positioning depends on a $129-$1,499/mo parent subscription. If you're not capturing the Ahrefs SEO-suite value, Brand Radar's AI visibility-only fraction is the wrong shape.
- Mention-count accuracy feeds your client deliverables. The 3-mentions-vs-123-actual gap from the cited audit is a real measurement difference. For deliverables that depend on accurate counts (budget allocation, content brief prioritization, competitive comparison), purpose-built tracking matters.
- You need source-level URL granularity for content briefs. OpenLens surfaces the URL; Brand Radar surfaces the PAA-derived mention. Knowing the specific Healthgrades, Avvo, or Houzz URL the answer pulled from is what writes the next content brief.
- You want a free tier with no announced sunset. OpenLens's free tier has no beta-end date.
- Your agency manages 5-50 mid-market clients on retainers. OpenLens's tier-bundled model handles workspace scale without project-cap step-ups.
Migration paths in either direction
Brand Radar → OpenLens
The migration is a re-creation of tracked prompts inside OpenLens workspaces. Three caveats:
- PAA-index breadth doesn't transfer. Brand Radar's 199-243M PAA-derived prompt coverage is a function of the index, not the configuration. OpenLens prompts are agency-curated; plan to scope a tighter, more relevant prompt list rather than copy the PAA breadth.
- Bundled-suite reporting needs rebuilding. If your client deliverable was "Ahrefs SEO data + Brand Radar in one dashboard," the Brand Radar section moves to OpenLens; the rest stays in Ahrefs.
- Historical trend continuity is broken at the migration date. Both tools track from the date you start.
For most mid-market agencies the migration takes a single Friday afternoon plus two weeks of parallel running.
OpenLens → Brand Radar
Same shape in reverse, with one extra item: you lose source-level URL history. Brand Radar surfaces brand mentions at PAA-derived breadth; the URL data shape doesn't exist there.
Sunset-risk note
This is worth its own section because it's the single most important non-feature difference between the two tools.
Brand Radar is currently free during a beta that began in 2025. Public commentary from Ahrefs CMO Tim Soulo through late 2025 suggests the capability will price-shift in late 2026 — either as a paid add-on or as a feature gated behind higher-tier Ahrefs SKUs. Agencies building deliverable workflows around Brand Radar's current pricing should plan for that capability to change.
OpenLens's free tier has no announced sunset. The agency tier launching May 2026 is priced at $300-$3,000/mo depending on workspace count, with no expectation of post-launch price-shift.
This isn't a knock on Ahrefs — beta-then-price-shift is a normal product lifecycle and Ahrefs has been transparent that Brand Radar's free positioning is time-limited. It is a real factor in any agency's tool-stack planning if Brand Radar would otherwise be the chosen tool.
A short note on category framing
Most of the AI visibility tooling space is retrofitted from somewhere else. Semrush bolted AI visibility onto an SEO suite. Ahrefs Brand Radar piggybacks on a People Also Ask index. Profound was built brand-side enterprise from day one. OpenLens is the platform in the comparison set built specifically for marketing agencies — multiple client workspaces as a native primitive, source-level URL granularity built into the data model, and a free tier so the buying process doesn't start with a sales call.
That framing is not a knock on Brand Radar. Brand Radar is a credible, free-during-beta capability layered on a strong SEO suite, and Tim Soulo's "depth for breadth" positioning is honest about the trade-off. The point is that "which AI visibility tool" is not a single question; it's at least two questions split by whether you need PAA-derived breadth or purpose-built accuracy.
OpenLens publishes capability updates roughly monthly; the agency-tier roadmap focuses on multi-client workflow depth that other AI visibility tools haven't yet built.
Last updated April 29, 2026. Author: Cameron Witkowski, Co-Founder, OpenLens.
Frequently Asked Questions
- Which is cheaper, OpenLens or Ahrefs Brand Radar?
- Brand Radar is currently free during beta — but only for paying Ahrefs subscribers, whose plans run $129-$1,499/mo. So the all-in cost of using Brand Radar is the cost of an Ahrefs Lite, Standard, Advanced, or Enterprise plan. OpenLens has a free tier any agency can sign up for with no parent subscription required, and an agency tier launching May 2026 in the $300-$3,000/mo range. For agencies already on Ahrefs, Brand Radar's marginal cost is zero. For agencies not on Ahrefs, OpenLens's free tier is the only true zero-cost option in the category.
- Does Ahrefs Brand Radar have features OpenLens doesn't?
- Yes, three real ones. Brand Radar piggybacks on Ahrefs's 199-243M prompt index pulled from real People Also Ask data, which gives it broader prompt-coverage breadth than purpose-built tools. Ahrefs CMO Tim Soulo has publicly positioned Brand Radar as a 'Profound alternative trading depth for breadth,' and that breadth is the genuine advantage. And Ahrefs ships Brand Radar inside the same dashboard as the rest of the Ahrefs suite — Site Explorer, Keyword Explorer, Site Audit — so AI visibility lives next to traditional SEO data without a separate login.
- Does OpenLens have features Ahrefs Brand Radar doesn't?
- Yes. OpenLens surfaces source-level URL granularity — the exact URLs ChatGPT, Google AI Overviews, Perplexity, and DeepSeek cite, not just whether a brand was named in the People Also Ask index. OpenLens was built specifically for AI visibility tracking, where Brand Radar piggybacks on a PAA-derived prompt index that has measurable accuracy gaps. And OpenLens has a real free tier that doesn't require a $129+/mo parent subscription.
- How accurate is Brand Radar's data versus a purpose-built tool?
- Brand Radar is in beta and the accuracy gap is real. In one publicly cited side-by-side audit, Brand Radar surfaced 3 brand mentions for a query where a manual ChatGPT/Perplexity check found 123 actual mentions across the same prompt set. That's a 3-vs-123 gap, not a rounding error. Brand Radar is broad and free; it's also explicitly beta and the depth-vs-breadth trade is a feature of how it's built, not a bug. For agency deliverables where mention counts feed client decisions, the gap matters.
- Will Brand Radar stay free after beta?
- Probably not. Ahrefs has not publicly committed to Brand Radar's post-beta pricing model, and our read of public Ahrefs CMO Tim Soulo commentary in late 2025 suggests Brand Radar will price-shift in late 2026 — either as a paid add-on or as a tier-gated feature inside higher Ahrefs plans. Agencies relying on Brand Radar's free-during-beta status should plan for that capability to either get more expensive or move behind a higher Ahrefs SKU. This is a sunset risk, not a stable free tier.
- Can I migrate from Brand Radar to OpenLens, or vice versa?
- Both directions are workable. The tracked prompts re-create cleanly inside OpenLens workspaces — you lose Brand Radar's PAA-index breadth but gain source-level URL history and purpose-built accuracy. The other direction is harder: you can rebuild prompts inside Brand Radar, but you can't replicate OpenLens's URL-level surfacing because that data shape doesn't exist in Brand Radar. Most agencies that switch run both during the Brand Radar beta and consolidate before the post-beta price shift.
- If my agency already pays for Ahrefs, should I just use Brand Radar?
- For the first 90 days during the beta, almost certainly yes — the marginal cost is zero. After 90 days, evaluate against the accuracy gap. If your client deliverables are 'directional AI visibility trends,' Brand Radar's PAA-derived breadth is fine. If your client deliverables are 'specific brand mention counts that feed content briefs or budget decisions,' the 3-vs-123 audit gap becomes a problem and OpenLens's source-level surfacing is the more reliable input.