Full disclosure: we compete in this category
Prefometry sells an AI visibility workflow, so treat this page like any vendor-authored comparison: useful for the observed evidence, but verify pricing and features on both vendors' own pages before buying.
What our sampling observed
Across 30 days of repeated buyer questions put to five engines, semrush.com was cited 79 times across all five engines — the widest engine spread we measured in this category. The citations leaned on Semrush's editorial roundups (best-ai-visibility-tools, best-generative-engine-optimization-tools) plus its AI pricing page. otterly.ai drew 58 citations across four engines, concentrated on its homepage, pricing, and features pages — product assets rather than editorial ones.
Read together: Semrush wins citations the way an incumbent content machine does — volume publishing that engines quote — while Otterly wins them with product pages that answer the question directly. Both patterns work; they reflect different strategies you can learn from for your own brand.
Side by side
Dimensions reflect public positioning observed in our sampling and each vendor's published pages; plans change often, so confirm on their sites.
| Dimension | Semrush | Otterly.AI |
|---|---|---|
| Posture | Full SEO suite with AI visibility added | Focused, self-serve AI visibility tracking |
| Typical buyer | SEO teams that already live in the suite | SMBs, solo marketers, and agencies starting AI visibility |
| Entry pricing shape | Suite subscription with add-on AI packages | Public entry-level monthly plans |
| Cited assets in our sampling | Editorial roundups and AI pricing page, 5 engines | Homepage, pricing, and features pages, 4 engines |
| Best fit | Teams consolidating classic + AI search in one bill | Teams that want prompt tracking live this week |
Which one should you pick
If your team already pays for Semrush and wants AI visibility next to keyword and backlink data, adding it to the suite is the path of least resistance. If you want a dedicated tracker that is cheap to start, simple to hand to a client, and built around prompts rather than keywords, Otterly.AI is the cleaner on-ramp.
If what you actually need is closing named gaps with preserved evidence, assigned actions, and comparable rechecks at self-serve prices — that is what we built Prefometry to be.