AI Visibility Index / Industries / Voice AI & speech
Most AI-visible voice AI tools (2026)
We scored 13 voice AI tools on how easily ChatGPT, Perplexity, Claude and AI agents can find, understand and use them. Murf AI leads with 100/100. Data from our crawl on October 18, 2026; scores are a homepage snapshot, not live.
Voice AI tools average score
Whole-index average (+6 for this industry)
of these sites miss “Question & answer content”
| # | Product | Score | Crawlers | Content | Schema | Agents |
|---|---|---|---|---|---|---|
| 1 | Murf AI murf.ai | 100 | 100 | 100 | 100 | 100 |
| 2 | Bland bland.ai | 98 | 94 | 100 | 100 | 100 |
| 2 | ElevenLabs elevenlabs.io | 98 | 100 | 94 | 100 | 100 |
| 2 | Krisp krisp.ai | 98 | 100 | 94 | 100 | 100 |
| 2 | Sonix sonix.ai | 98 | 100 | 94 | 100 | 100 |
| 6 | Vapi vapi.ai | 97 | 100 | 89 | 100 | 100 |
| 7 | Speechmatics speechmatics.com | 96 | 100 | 100 | 100 | 83 |
| 8 | Deepgram deepgram.com | 95 | 100 | 94 | 100 | 83 |
| 8 | Retell AI retellai.com | 95 | 95 | 100 | 100 | 83 |
| 10 | Cartesia cartesia.ai | 88 | 100 | 100 | 100 | 47 |
| 10 | Synthflow AI synthflow.ai | 88 | 100 | 100 | 100 | 47 |
| 12 | Rev rev.com | 84 | 95 | 100 | 20 | 83 |
| 13 | AssemblyAI assemblyai.com | 58 | 95 | 23 | 8 | 78 |
Sub-scores: Crawlers = AI crawler access, Content = answer-engine content, Schema = structured data, Agents = agent readiness (llms.txt, API/MCP). Ties share a rank.
Voice AI tools vs the whole index
| Area | This industry | All 538 sites |
|---|---|---|
| Overall score | 92 | 86 |
| AI crawler access | 98 | 97 |
| Answer-engine content | 91 | 89 |
| Structured data | 87 | 71 |
| Agent readiness | 85 | 76 |
Most common gaps among voice AI tools
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FAQ
Which voice AI tools are the most visible to AI search engines?
In our October 18, 2026 crawl, the top-scoring voice AI tools were Murf AI (100/100), Bland (98/100), ElevenLabs (98/100). The score measures how easily ChatGPT, Perplexity, Claude and AI agents can crawl, understand and use each product's homepage.
How do voice AI tools compare with the rest of the AI Visibility Index?
The 13 voice AI tools we track average 92/100, 6 points above the 86/100 average across all 538 SaaS and AI sites in the index.
What is the most common AI visibility gap among voice AI tools?
46% of the voice AI tools we checked miss "Question & answer content" (vs 71% across the whole index). Fix: Add an FAQ answering the exact questions buyers ask ChatGPT ("best X for Y", "X vs Y", "how much does X cost").
How is the AI visibility score calculated?
RankRoot checks four areas on each homepage: AI crawler access (robots.txt rules for GPTBot, ClaudeBot, PerplexityBot and others), answer-engine content (title, headings, FAQ-style content, server-rendered text), structured data (JSON-LD, Organization/Product schema) and agent readiness (llms.txt, discoverable API or MCP server). Each area is scored 0 to 100 and combined into one score.
When was this data collected, and can a company update its score?
Scores are a snapshot from our crawler on October 18, 2026. They are not updated automatically. Anyone can rescan a site live for free, and we refresh the index periodically.
My voice AI tool isn't listed. How do I see where it would rank?
Run a free scan at https://getrankroot.com/report. You get the same score and checks, so you can compare it directly with this leaderboard.
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Methodology and full findings: State of AI Visibility 2026. Industry labels are assigned by RankRoot from each product's own homepage description.