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PolyAI alternatives

Compare options in ASE's voice agents category before treating any as a replacement for PolyAI. Category membership and matching entity type do not prove equivalent capabilities. The directory below puts the same entity type first, then curated records alphabetically and repository-listed records by recorded GitHub stars. Stars measure interest, not users or performance. Check task fit, license, deployment and total costs; sponsorship never affects the order.

10 category options from 36 · all voice agents · how we rank

The product you're replacing

PolyAIPlatformVoice Agents

Build voice and chat agents with flows, tools and human handoff.

Paid product

Visit PolyAI →Full PolyAI record

PolyAI's own profile notes it may not be the right fit if you need a published all-in voice rate or assume free account creation includes ongoing production calls. If that's you, the options below are worth comparing.

Building one yourself? Choose and evaluate a voice agent stack →

Curated category options

Listed alphabetically — GitHub stars don't measure commercial adoption.

Bland AIPlatformEnterprise platform for AI phone calls that sound human.Paid productRecord checked

vs PolyAI — The recorded use cases differ: PolyAI — Teams building customer-facing voice or chat agents with connected workflows and transfer to people; Bland AI — Enterprises running high-volume outbound and inbound AI phone calls.

Deepgram Voice Agent APIPlatformA unified API for speech recognition, model orchestration and speech synthesis.Paid productRecord checked

vs PolyAI — The recorded use cases differ: PolyAI — Teams building customer-facing voice or chat agents with connected workflows and transfer to people; Deepgram Voice Agent API — Developers who want a managed voice pipeline with API-level control of agent behavior and tools.

ElevenLabs AgentsPlatformConversational voice agents powered by ElevenLabs' leading speech models.FreemiumRecord checked

vs PolyAI — The recorded use cases differ: PolyAI — Teams building customer-facing voice or chat agents with connected workflows and transfer to people; ElevenLabs Agents — Voice agents that need best-in-class speech quality and voice cloning.

NiCE CognigyPlatformConfigure enterprise conversational agents for chat and voice.Paid productRecord checked

vs PolyAI — The recorded use cases differ: PolyAI — Teams building customer-facing voice or chat agents with connected workflows and transfer to people; NiCE Cognigy — Enterprise contact-center teams evaluating configurable voice and chat agents with human handover.

Repository-listed category options

Same entity type first, then recorded GitHub stars. Check the license, task fit and operating costs.

CyberVersePlatformSelf hosted, real-time digital human agent platform. Build voice-first AI agents with WebRTC, persona memory, tools, RAG, and optional digital-human video.Open sourcePython · GPL-3.0Record checked · Recent push 1.7kGitHub stars

vs PolyAI — The recorded use cases differ: PolyAI — Teams building customer-facing voice or chat agents with connected workflows and transfer to people; CyberVerse — Self-hosting a voice-first real-time agent with WebRTC, persona memory and RAG, with digital-human video as an option rather than a requirement.

echokit_serverPlatformOpen Source Voice Agent PlatformOpen sourceRust · GPL-3.0Record checked 591GitHub stars

vs PolyAI — Recorded pricing categories differ: PolyAI — Paid product; echokit_server — Open source. They do not establish total cost.

PipecatFrameworkCompose voice and multimodal agents with Python processing pipelines.Open sourcePython · BSD-2-ClauseRecord checked · Recent push 16kGitHub stars

vs PolyAI — The recorded use cases differ: PolyAI — Teams building customer-facing voice or chat agents with connected workflows and transfer to people; Pipecat — Python developers who want to choose the services and processing stages in a custom voice or multimodal application.

LiveKit AgentsFrameworkBuild voice and multimodal agents that participate in LiveKit rooms.Open sourcePython · Apache-2.0Record checked · Recent push 15kGitHub stars

vs PolyAI — The recorded use cases differ: PolyAI — Teams building customer-facing voice or chat agents with connected workflows and transfer to people; LiveKit Agents — Developers building custom voice or multimodal agents around LiveKit rooms and their own application logic.

xiaozhi-esp32-serverInfrastructureBackend service for xiaozhi-esp32 -- helps you quickly build an ESP32 device control server.Open sourceJavaScript · MITRecord checked · Recent push 11kGitHub stars

vs PolyAI — The recorded use cases differ: PolyAI — Teams building customer-facing voice or chat agents with connected workflows and transfer to people; xiaozhi-esp32-server — Self-hosting the backend for xiaozhi ESP32 hardware you already own, with MQTT, UDP and WebSocket transports, MCP access points, voiceprint recognition and a knowledge base.

ten-vadSDK / libraryVoice Activity Detector (VAD): low-latency, high-performance and lightweightOpen sourceCRecord checked 2.3kGitHub stars

vs PolyAI — The recorded use cases differ: PolyAI — Teams building customer-facing voice or chat agents with connected workflows and transfer to people; ten-vad — Frame-level real-time voice activity detection inside a larger voice pipeline, where latency and memory footprint matter.

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Showing 10 category options. See all 36 voice agents →

Compare PolyAI head-to-head

Frequently asked

What is the best alternative to PolyAI?
It depends on the capabilities, deployment requirements and costs you need. CyberVerse is the first repository-listed option in this shortlist (1.7k GitHub stars); Bland AI is one of the commercial options. Compare capabilities, license, activity, and costs; this is not a performance benchmark.
Is there a free or open-source alternative to PolyAI?
CyberVerse, echokit_server, and Pipecat are among the repository-listed alternatives. Check each software license and deployment requirements before assuming it is open source or free to operate; model, API, hosting, and managed-service costs can apply.
How are these PolyAI alternatives ranked?
Every other record in the voice agents category is a candidate; the page shows a bounded shortlist. Records sharing the subject’s entity type come first, then repository-listed records are ordered by recorded GitHub stars. Stars do not measure task performance or prove current maintenance. Commercial products are listed separately, with the same entity-type priority and alphabetical order within each group, because stars do not measure commercial adoption. Sponsored placement is always labeled and never affects the ranking.