AI Voice Agents
AI voice agents hold real phone conversations using speech recognition, a language model, and synthetic speech, answering inbound calls or placing outbound ones to qualify, book, and route without a human on the line.
The category went from demo to deployable in about two years, once latency fell far enough that a caller stops noticing the gap between turns. The offerings split into developer platforms that expose the pipeline as an API and no-code builders that ship a working receptionist in an afternoon, with telephony, transcription, model, and voice all metered underneath. Small businesses adopt it for two jobs above all: never missing an inbound call, and qualifying or reactivating lists at a per-minute cost that undercuts staffing. The open questions are consent and disclosure rules, which vary by state and country, and the reputational cost of a bad conversation.
Bland AI
Phone-calling AI agents as an API, with the whole stack self-hosted for speed
ElevenLabs Agents
Conversational agents from the company whose voices set the quality bar
Goodcall
An AI phone agent for small businesses, live in minutes with no technical work
Millis AI
Sub-second voice agents at aggressive per-minute pricing
Phonely
AI phone support that learns from your best calls and hands off cleanly
PlayAI
Voice models and conversational agents from a company built around speech generation
Regal
AI agents and human agents on one contact center platform, triggered by customer behavior
Retell AI
Production-ready voice agents with a visual flow builder and low-latency calling
Rosie
An AI answering service for small businesses, priced like a phone bill
Slang.ai
A digital phone host for restaurants, built around reservations and the questions guests actually ask
Synthflow
No-code AI phone agents, built for agencies deploying them to small businesses
Thoughtly
Voice agents with a visual builder, built-in analytics, and agency-ready packaging
Vapi
Composable voice AI: bring your own transcription, model, and voice provider
Vocode
Open-source voice agent framework you can self-host, plus a hosted platform
Voiceflow
A collaborative design and build platform for AI agents across chat and voice
Profiles are listed in editorial order. Placement cannot be purchased; see our methodology.