AI visibility tools price monitoring in different ways: by prompt, by response, by brand, by seat, and some only on annual terms. We read the pricing page of each tool that comes up most often and wrote down the cheapest paid plan and what it buys. Prices were checked on 17 October 2026 and change often, so treat this as a snapshot and check the vendor page before you buy.
The prices side by side
| Tool | Cheapest paid plan | What it buys | Free option | AI engines tracked |
|---|---|---|---|---|
| Otterly.ai | $29/month | 15 prompts, unlimited seats | Free trial | ChatGPT, AI Overviews, Perplexity, Copilot. Gemini, AI Mode and Claude are paid add-ons |
| LLM Pulse | €49/month (weekly checks), €79 (daily) | 50 prompts, 1 project | 14-day trial, card needed | ChatGPT, Perplexity, Gemini, AI Mode, AI Overviews |
| HubSpot AEO (beta) | $50/month | 25 prompts, 1 brand, no other HubSpot plan needed | Free trial; free one-off AEO Grader | ChatGPT, Gemini, Perplexity |
| Ahrefs Brand Radar | $50/month (Custom Prompts) or $199/month (AI Visibility Index) | Custom Prompts: 2,500 checks on one platform. All models: $699/month | Free one-off checker | AI Overviews, AI Mode, ChatGPT, Perplexity, Gemini, Copilot; Claude on Custom Prompts |
| Peec AI | $95/month | 50 prompts, 3 models of your choice | Free trial | Choose from ChatGPT, AI Mode, AI Overviews, Copilot, Gemini; Perplexity as an add-on |
| Semrush (SEO + AI Search) | $199/month | 50 prompts a day, 1 brand domain, plus the SEO toolkit | 7-day trial; free checker | AI Overviews, AI Mode, ChatGPT, Perplexity, Gemini |
| Scrunch | $250/month | 125 prompts, 5 site audits | 7-day trial | ChatGPT, Perplexity, AI Overviews, Copilot |
| Athena HQ | $295/month | 3,600 responses, unlimited prompts and seats | Free tier with $25 of credit | 11 models, including Claude |
| Profound | Not listed, quote only | Enterprise plans | 7-day trial | Up to 9 engines on enterprise plans |
| Kelriva AI Visibility Score (ours) | £6.99/month for monitoring; the report is free | A full report on 8 real buyer questions across 4 engines, then a re-check about once a month | Full report free | ChatGPT, Claude, Gemini, Perplexity |
What changed since September
When we first published this in September, Ahrefs sold Brand Radar as a $398 a month add-on and Semrush listed AI visibility at $99 per domain. Both have repriced. Brand Radar is now sold on its own, from $50 a month for custom prompts on one platform up to $699 a month for every model. Semrush now bundles AI tracking into plans that start at $199 a month. Profound no longer shows prices at all. HubSpot launched a standalone AEO product at $50 a month, and LLM Pulse sits at the low end from €49. Otterly, Peec AI, Scrunch and Athena HQ list the same prices as in September.
How to read these prices
The headline number hides the unit. A "prompt" is one question tracked over time, usually re-asked every day, so 15 prompts on Otterly and 125 on Scrunch are very different amounts of data. Athena HQ counts responses instead, one answer from one engine. Check which engines the cheapest plan actually covers: several tools charge extra for Gemini, Perplexity or Claude, and these are often the engines your buyers use.
Daily tracking of hundreds of prompts suits agencies and brands with a marketing team that will act on the data every week. For a small business the question is usually simpler: when a buyer asks an AI engine for a firm like mine, am I named, and is what it says about me right? That does not change daily, and our own tests show single answers move around from run to run anyway, so a monthly check with the full answers is usually enough to act on.
The free, one-off checkers
Ahrefs, Semrush, HubSpot (the AEO Grader), Birdeye, Backlinko and Mangools all offer a free snapshot without an account. They are useful for a first look, but they are one-off checks and the entry point to the paid platforms above, not monitoring.
Where the free AI Visibility Score sits
Kelriva AI's AI Visibility Score report is free in full, not a teaser: it shows the verbatim answers ChatGPT, Claude, Gemini and Perplexity give to the questions your buyers ask, and what to fix. The only paid part is optional monitoring at £6.99 a month, a re-check about once a month. It tracks far fewer prompts than the platforms above and is not built for agency reporting. It is built for a business that wants to know whether AI engines name it, and whether anything has changed, without a $200 a month tool. Run the free check and decide afterwards whether monitoring is worth it.