Stellarcast vs Ahrefs Brand Radar: which AI visibility tool fits you?
An honest side-by-side of Stellarcast and Ahrefs Brand Radar: what each costs, which engines each plan checks, whether it can fix what it finds, and how it proves results.
Stellarcast is our product, so read this knowing our bias. It is written to be useful anyway, including where Ahrefs Brand Radar is the better choice. Every fact about Ahrefs Brand Radar comes from its own pricing and product pages, checked on 26 September 2026; confirm anything that decides your purchase with the vendor.
The short answer
Brand Radar's strength is a huge pre-collected index of AI answers, tied to Ahrefs' SEO data: benchmark any brand instantly. Stellarcast tracks the prompts you choose, ships the fixes and proves whether they worked.
See how AI engines describe your brand first: get a free visibility audit, no card.
Side by side
| Stellarcast | Ahrefs Brand Radar | |
|---|---|---|
| Pricing | Public: $39, $89, $249, $549/mo; agencies $599 and $1,499/mo | Custom prompts from Ahrefs Lite at $129/mo (5 prompts); AI index $199/mo per platform or $699/mo for all; Enterprise $1,499/mo (annual) |
| Engines | Six, daily, on every paid plan: Google AI Overviews, ChatGPT, Gemini, Perplexity, Google AI Mode, Microsoft Copilot (Claude and Grok on Enterprise) | AI Overviews, AI Mode, ChatGPT, Perplexity, Gemini, Copilot; Claude for custom prompts via API |
| Fixes shipped to your site | Drafts fixes and, after your approval, ships them to WordPress or Shopify (from $89) | No publishing |
| Proof of impact | Lift ledger: every claim labelled MEASURED, LIKELY or TOO-EARLY, with a range | No lift method described on its pricing or product pages |
| Markets | 18 markets, each measured with native-language prompts, on every plan | Not published |
| Trial | No trial; free audit with no card | No trial |
Checked 26 September 2026 against each vendor's own pages.
Where Ahrefs Brand Radar wins
- A huge pre-collected index of AI answers: benchmark any brand or competitor instantly, with history back to 2025.
- A tight link to Ahrefs' keyword and backlink data.
- The cheapest way to start if you already pay for Ahrefs.
- Free API pulls for custom-prompt data, MCP and a Looker Studio connector.
Where Stellarcast wins
- 15 tracked prompts on the $39 plan, against 5 custom prompts on Ahrefs Lite at $129.
- Fixes drafted and shipped to WordPress or Shopify after your approval.
- A lift ledger with a confidence label on every claim.
- Native-language prompts per market.
How to decide
- Choose Ahrefs Brand Radar if you already pay for Ahrefs and want to benchmark brands against a large index without setting anything up.
- Choose Stellarcast if you want your own buyer questions tracked daily, and gaps fixed and proven. See the plans.
See what AI says about you today
The free audit asks Google AI Overviews, ChatGPT, Gemini and Perplexity the questions buyers in your market ask, and shows where a competitor is named instead of you. No card, no commitment.
Get your free visibility auditFrequently asked questions
Is Stellarcast a Ahrefs Brand Radar alternative?
Yes. Both track whether AI engines name and cite your brand. Brand Radar's strength is a huge pre-collected index of AI answers, tied to Ahrefs' SEO data: benchmark any brand instantly. Stellarcast tracks the prompts you choose, ships the fixes and proves whether they worked.
How much does Ahrefs Brand Radar cost compared with Stellarcast?
Ahrefs includes a few custom prompts from its Lite plan ($129 a month); Brand Radar's AI index is $199 a month per platform or $699 for all. Stellarcast starts at $39 a month. Checked 26 September 2026.
Which AI engines do Ahrefs Brand Radar and Stellarcast track?
Brand Radar covers Google AI Overviews, AI Mode, ChatGPT, Perplexity, Gemini and Copilot, with Claude for custom prompts. Stellarcast checks the same six daily on every paid plan, with Claude and Grok on Enterprise.
Can Ahrefs Brand Radar publish fixes to my website?
No publishing. Stellarcast drafts fixes and, after your approval, ships them to WordPress or Shopify from its $89 Starter plan.