AI voice agents · #2 of 29 · ↑ Retell AI · ↓ Bland
Vapi
Vapi ranks #2 of 29 in ai voice agents in the week of 21 September 2026, with a visibility score of 44 across ChatGPT, Claude, Gemini and Perplexity. It was named in 63% of the answers we sampled.
sampled: 3 of 4 assistants this week
Vapi lands an overall score of 44 out of 100, with ChatGPT the most generous at 55, Claude close behind at 47, and Perplexity trailing at 31. Across the board, it's named in 38 of 60 answers. It shows up consistently — 3 of 3 answers — for questions like "best AI voice agents in 2026," "best AI voice agent platforms," booking appointments, inbound customer support calls, and cheapest per minute. On the flip side, Vapi is never mentioned for call analytics and transcripts, enterprise contact centres, or open-source voice AI frameworks, suggesting AI assistants don't yet associate it with those specialties.
this is mine claim it, free, forever. We also check whether ChatGPT and Claude can read vapi.ai.
Who's talking about you
| assistant | score | named in, this week | usual spot, this week |
|---|---|---|---|
| ChatGPT | 55 | 70% of answers | #2.9 |
| Claude | 47 | 80% of answers | #5.6 |
| Gemini | not sampled this week | ||
| Perplexity | 31 | 40% of answers | #2.9 |
Questions you win
| question | named in | best spot |
|---|---|---|
| What are the best AI voice agent platforms? | 3 of 3 | #1 |
| What are the best AI voice agents in 2026? | 3 of 3 | #1 |
| Which AI voice agent platform is cheapest per minute? | 3 of 3 | #1 |
| Which voice AI platform is best for developers? | 3 of 3 | #1 |
| What's the best AI voice agent for booking appointments? | 3 of 3 | #1 |
| What's the best AI voice agent for inbound customer support calls? | 3 of 3 | #1 |
| What's the best voice AI platform with its own phone numbers and telephony? | 3 of 3 | #1 |
| What's the best no-code tool to build a voice AI agent? | 2 of 3 | #2 |
| What's the best voice AI that connects to my CRM? | 2 of 3 | #2 |
| What's the best AI voice agent that can transfer to a human? | 2 of 3 | #3 |
| Which AI voice agent has the lowest latency? | 2 of 3 | #4 |
| What's the best AI voice agent for a restaurant or clinic taking bookings? | 2 of 3 | #4 |
| What's the best AI receptionist for answering calls? | 2 of 3 | #7 |
| What's the best AI phone agent for a small business? | 2 of 3 | #8 |
| What's the best AI agent for outbound sales calls? | 1 of 3 | #1 |
| What's the best AI voice agent for languages other than English? | 1 of 3 | #2 |
| Which voice AI platform sounds the most natural? | 1 of 3 | #9 |
Questions you lose
| question | who got named instead |
|---|---|
| What's the best enterprise voice AI platform for contact centres? | PolyAI, Parloa, Cognigy |
| What's the best open-source voice AI agent framework? | LiveKit Agents, Pipecat, Vocode |
| What's the best voice AI platform for call analytics and transcripts? | Dialpad |
Assistants cited 11 pages for questions in this category that name your rivals and not you. Claim to see them. See all sources for AI voice agents.
In their words
- ChatGPT“Build your own custom voice agent | Vapi | Good if you want API control, custom logic, and your own integrations.”
- Claude“Vapi and Retell are the usual starting points — both support warm transfer, where the AI can brief the human agent before connecting, plus SIP integration and context passing.”
- Perplexity“If you mean AI voice-agent platforms specifically rather than telecom providers, then Retell AI and Vapi are strong, but they are not as fully self-contained globally: Vapi supports managed numbers plus imported Twilio/Vonage/Telnyx numbers and SIP, while Retell AI supports its own numbers plus impo”
Closest rivals
All Vapi alternatives · Full AI voice agents leaderboard · Sources