AI voice agents · #18 of 29 · ↑ Loman AI · ↓ Amazon Connect
Twilio ConversationRelay
Twilio ConversationRelay ranks #18 of 29 in ai voice agents in the week of 21 September 2026, with a visibility score of 4 across ChatGPT, Claude, Gemini and Perplexity. It was named in 10% of the answers we sampled.
sampled: 3 of 4 assistants this week
Twilio ConversationRelay scores 4 out of 100 overall in our AI voice agents tracking, with Claude rating it highest at 8 and ChatGPT and Perplexity both at 3. Across 60 questions tested, it was named in just 6 answers. Its strongest showing was for platforms with their own phone numbers and telephony, where it appeared in all 3 of 3 answers. It also picked up single mentions for no-code tools, cheapest per minute, and best for developers. It went unmentioned for call analytics, general 2026 rankings, multilingual support, and AI receptionists.
Who's talking about you
| assistant | score | named in, this week | usual spot, this week |
|---|---|---|---|
| ChatGPT | 3 | 5% of answers | #5.0 |
| Claude | 8 | 20% of answers | #11.8 |
| Gemini | not sampled this week | ||
| Perplexity | 3 | 5% of answers | #6.0 |
Questions you win
| question | named in | best spot |
|---|---|---|
| What's the best voice AI platform with its own phone numbers and telephony? | 3 of 3 | #5 |
| What's the best no-code tool to build a voice AI agent? | 1 of 3 | #10 |
| Which AI voice agent platform is cheapest per minute? | 1 of 3 | #14 |
| Which voice AI platform is best for developers? | 1 of 3 | #17 |
Questions you lose
| question | who got named instead |
|---|---|
| What are the best AI voice agent platforms? | Retell AI, Vapi, Synthflow |
| What's the best AI phone agent for a small business? | Goodcall, Retell AI, Slang.ai |
| Which voice AI platform sounds the most natural? | ElevenLabs Agents |
| What are the best AI voice agents in 2026? | Retell AI, Vapi, ElevenLabs Agents |
| What's the best AI receptionist for answering calls? | Slang.ai, Retell AI, Goodcall |
| Which AI voice agent has the lowest latency? | ElevenLabs Agents, Bland, OpenAI Realtime API |
| What's the best enterprise voice AI platform for contact centres? | PolyAI, Parloa, Cognigy |
| What's the best AI voice agent for booking appointments? | Vapi, Retell AI, Synthflow |
| What's the best AI agent for outbound sales calls? | Retell AI, Bland, Vapi |
| What's the best AI voice agent for inbound customer support calls? | Vapi, PolyAI, Retell AI |
| What's the best AI voice agent for a restaurant or clinic taking bookings? | Slang.ai, PolyAI, Retell AI |
| What's the best voice AI that connects to my CRM? | Retell AI, Vapi, Bland |
| What's the best AI voice agent for languages other than English? | ElevenLabs Agents, Retell AI, OpenAI Realtime API |
| What's the best open-source voice AI agent framework? | LiveKit Agents, Pipecat, Vocode |
| What's the best AI voice agent that can transfer to a human? | Retell AI, PolyAI, Vapi |
| What's the best voice AI platform for call analytics and transcripts? | Dialpad |
Assistants cited 14 pages for questions in this category that name your rivals and not you. See all sources for AI voice agents.
In their words
- ChatGPT“If by “voice AI platform with its own phone numbers + telephony” you mean a platform where you can spin up an AI agent, give it a real phone number, receive/make calls, transfer calls, use SMS, and avoid stitching together Twilio + STT + TTS + LLM yourself, the main options I’d look at are:”
- Claude“Twilio (ConversationRelay) — obviously owns telephony, huge number inventory, best-in-class compliance tooling.”
- 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
- Twilio ConversationRelay vs Loman AI4
- Twilio ConversationRelay vs Amazon Connect3
- Twilio ConversationRelay vs Assort Health3
- Twilio ConversationRelay vs Avoca AI3
- Twilio ConversationRelay vs Deepgram Voice Agent5
All Twilio ConversationRelay alternatives · Full AI voice agents leaderboard · Sources