// Side-by-side
Ahrefs and Semrush built the SEO category for 2015's search engine. Surfer and Frase iterated on content briefs for the click-era. The answer engines moved on. Here's what each tool actually tracks today, with no spin.
Last updated 2026-05-16 from public docs + product testing.
The matrix
| Capability | Vizelo.ai | Ahrefs | Semrush | Surfer / Frase |
|---|---|---|---|---|
| Answer-engine coverage | ||||
| Google AI Overviews tracking | ✓ hourly | Partial · daily | Partial · daily | — |
| ChatGPT visibility | ✓ all engines | — | — | — |
| Perplexity visibility | ✓ | — | — | — |
| Bing Copilot | ✓ | — | — | — |
| Claude.ai | ✓ | — | — | — |
| Google Gemini | ✓ | — | — | — |
| Citation intelligence | ||||
| Per-prompt citation graph | ✓ | — | — | — |
| Competitor citation steal-list | ✓ ranked | — | — | — |
| Source-domain attribution | ✓ | Partial | Partial | — |
| Brand-mention sentiment over time | ✓ | — | Add-on | — |
| Content production | ||||
| Brief generation from demand signals | ✓ | Add-on | Add-on | ✓ |
| Schema + JSON-LD one-click ship | ✓ | — | — | Manual |
| llms.txt + AI sitemap generation | ✓ | — | — | — |
| Cannibalization detection | ✓ | ✓ | ✓ | — |
| Workflow + integration | ||||
| Slack alerts (per-prompt, real-time) | ✓ | Project-level | Project-level | — |
| Public REST API | ✓ | ✓ | ✓ | Limited |
| Webhooks | ✓ | ✓ | — | — |
| SSO (SAML / OIDC) | ✓ Scale plan | Enterprise | Enterprise | — |
| SCIM 2.0 | ✓ Scale plan | Enterprise | Enterprise | — |
| Pricing + access | ||||
| Free-forever tier | ✓ 25 prompts | — | — | — |
| 14-day trial without card | ✓ | — | — | ✓ |
| Starting price (paid) | $49/mo | $129/mo | $139.95/mo | $89/mo |
| Trust + privacy | ||||
| Never trains on customer data | ✓ contractual | — | — | — |
| SOC 2 Type II | In progress | ✓ | ✓ | — |
| Per-customer data isolation | ✓ | ✓ | ✓ | Limited |
We update this page quarterly. If anything here is out of date for a competitor's product, tell us and we'll correct it within 48 hours — including in our favor or not.
// The honest take
You still get most of your traffic from blue-link organic, your buyers don't research with ChatGPT, and your team's reporting muscle is built around classic SERP rank + backlink graphs. These tools are still the best in the world at that job.
Your bottleneck is content production volume, not visibility measurement. They're cheaper than Ahrefs and excellent at structured-brief workflows. Pair with Vizelo for the visibility layer they don't cover.
Your buyers ask the AI engines about your category and you have no idea if you're cited, sentiment-scored, or invisible. That's a different category than legacy SEO — measuring it is what we do.
// Deeper
The matrix above is the quick read. If you're comparing seriously, every per-competitor page below is ~1,200–1,300 words, names the competitor's real strengths, and concedes where Vizelo is still catching up.
Connect your domain. Run a real scan in four minutes. Free forever tier, no card.
