TAMGIO vs Semrush AI Toolkit: An Honest Comparison
TAMGIO is a standalone AI-visibility analytics tool that measures how often a brand is mentioned, cited, and recommended in AI answers. Ongoing tracking runs on three engines — OpenAI web_search, Perplexity Sonar, and Gemini grounded search. Google AI Overviews (via SerpAPI) is added in Audit Mode, for four measured surfaces in total. Semrush AI Toolkit, by contrast, is an add-on module bolted onto Semrush's existing SEO suite that tracks prompt-level visibility mainly on ChatGPT and Google AI Overviews. Semrush's toolkit draws on a large existing dataset (26M+ prompts and responses) and a 0-100 AI Visibility Score inside the same dashboard you may already use for keyword rankings, while TAMGIO runs its own N-sample scans and keeps every scan's raw evidence attached to the metric it produced. The core difference is evidentiary: an TAMGIO number links back to the exact API response and timestamp behind it, while Semrush's score is read from its own aggregated index.
Who each tool is actually built for
Semrush AI Toolkit is aimed at teams already inside the Semrush ecosystem — SEO managers and agencies who want AI visibility sitting next to the keyword rankings, backlinks, and traffic data they already track. That's a real convenience: one login, one dashboard, one invoice. TAMGIO is built for a narrower job: proving, with evidence, what AI models actually say about a brand. If you don't need a full SEO suite and want a tool whose only responsibility is AI-answer measurement, TAMGIO is the more direct fit.
Engine coverage: three ongoing engines (four surfaces in Audit Mode) vs two
Ongoing tracking runs on three engines — OpenAI web_search (gpt-4.1-mini), Perplexity Sonar (always grounded), and Gemini grounded search. Google AI Overviews (via SerpAPI) is added in Audit Mode, for four measured surfaces in total; it is SERP-embedded and can legitimately be "no_surface" for a given search — a result TAMGIO reports openly rather than hiding. Semrush AI Toolkit currently covers ChatGPT and Google AI Overviews/AI Mode; Gemini support is listed as "coming soon," and independent reviews (Trakkr, Profound, 99signals, Rankability, Am I Cited) note it has no Claude or Perplexity coverage at the time of writing.
The evidence gap
This is where the two tools diverge most. TAMGIO backs every Mention Rate, Share of Voice, Citation Rate, and Prompt Coverage number with raw evidence — a dashed underline on the metric opens the actual API response, the citations returned, and the timestamp the scan ran. Nothing is a black-box score. Semrush's toolkit reports an aggregated 0-100 AI Visibility Score and Brand Performance metrics computed from its own dataset; several independent reviews describe the underlying queries as simulated rather than live user-query logs, and note that recommendations can be generic ("improve onboarding") rather than tied to a specific answer.
Prompt volume and methodology
TAMGIO treats AI answers as non-deterministic by design: users write or AI-generate 30-40 candidate prompts, approve them, and TAMGIO samples each one repeatedly because a single-shot answer isn't a trustworthy measurement. Semrush's standalone add-on ships with 25 tracked prompts per domain, with extra capacity sold in blocks of 50. Neither approach is wrong — they're built for different confidence levels of measurement.
Pricing model
Semrush AI Toolkit costs $99/month as a standalone add-on covering one domain and 25 prompts, with +$60/month per additional 50 prompts and no free trial; it's also sold bundled into Semrush One plans (Starter, Pro+, Advanced) with a discount for annual billing. TAMGIO's pricing isn't finalized yet — the site currently lists three planned tiers (Weekly Scan, Daily + Competitors, Agency/White-label) without fixed dollar figures, so a direct cost comparison isn't possible today.
| Feature | TAMGIO | Semrush AI Toolkit |
|---|---|---|
| Engines covered | OpenAI web_search, Perplexity Sonar, Gemini grounded search (ongoing); Google AI Overviews added in Audit Mode | ChatGPT, Google AI Overviews/AI Mode (Gemini listed as coming soon; no Claude or Perplexity at time of writing) |
| Raw evidence per metric | ✓ | Aggregated dashboard scores from Semrush's own dataset, no per-answer evidence surfaced |
| Product type | Purpose-built, standalone AI-visibility tool | Add-on module inside the broader Semrush SEO suite |
| Tracked prompts | 30-40 user-approved prompts across 5 intents (best-of, comparison, how-to, local, pricing) | 25 tracked prompts per domain (extra capacity sold in blocks of 50) |
| Query source | Live scans against each engine's own API/SERP | 26M+ prompt/response dataset; some reviewers describe queries as simulated rather than live user logs |
| Regional coverage | Global — no country allowlist | Roughly 15 countries per independent reviews |
| Pricing | Not yet publicly announced (planned tiers, no fixed prices) | $99/mo standalone (1 domain, 25 prompts) or bundled into Semrush One from $199/mo |
Where Semrush AI Toolkit genuinely does well
- Large existing dataset (26M+ prompts/responses) powering a 0-100 AI Visibility Score with daily position tracking
- Brand Performance reporting (share of voice + sentiment) that reviewers call intuitive for client-facing agency reports
- One dashboard that correlates traditional SEO rankings with AI visibility — genuinely convenient for existing Semrush users
- Discounted bundling through Semrush One for teams that also want full SEO and traffic toolkits
Bottom line
If AI visibility is one line item in a broader SEO practice you already run through Semrush, the AI Toolkit add-on is a low-friction way to see it next to your existing rankings. If you need to know — with evidence you can open and check — what AI answers actually say about a brand, TAMGIO is built for exactly that job: ongoing tracking on three engines (OpenAI web_search, Perplexity Sonar, and Gemini grounded search), with Google AI Overviews added in Audit Mode for four measured surfaces in total.
FAQ
- Does TAMGIO replace Semrush?
- No. Semrush is a full SEO suite with an AI-visibility add-on; TAMGIO is a dedicated AI-visibility tracker whose ongoing tracking runs on three engines — OpenAI web_search, Perplexity Sonar, and Gemini grounded search — with Google AI Overviews added in Audit Mode. Teams that need traditional keyword rankings alongside AI-answer evidence often use both rather than choosing one.
- Which AI engines does each tool track?
- Ongoing tracking runs on three engines — OpenAI web_search, Perplexity Sonar, and Gemini grounded search. Google AI Overviews (via SerpAPI) is added in Audit Mode, for four measured surfaces in total. Semrush AI Toolkit currently covers ChatGPT and Google AI Overviews/AI Mode, with Gemini listed as coming soon and no Claude or Perplexity coverage at the time of this comparison.
- Can I see the raw AI answer behind a Semrush AI Visibility Score?
- Semrush reports an aggregated 0-100 score and share-of-voice metrics computed from its own dataset. TAMGIO takes a different approach: every metric has a dashed underline that opens the exact API response, citations, and timestamp the number came from.
- Is Semrush AI Toolkit cheaper than TAMGIO?
- Semrush AI Toolkit costs $99/month as a standalone add-on for one domain and 25 prompts, or comes bundled into Semrush One plans from around $199/month. TAMGIO's pricing isn't finalized yet — the site shows planned tiers without fixed dollar amounts, so a direct cost comparison isn't possible today.