# 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.

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.

Browse on the web: https://agentsearchengine.app/alternatives/polyai

## Curated category options (same type first, then alphabetical)

- [Bland AI](https://agentsearchengine.app/agents/bland-ai) — Enterprise platform for AI phone calls that sound human. · Paid product · Platform · best for enterprises running high-volume outbound and inbound ai phone calls
  - **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 API](https://agentsearchengine.app/agents/deepgram-voice-agent) — A unified API for speech recognition, model orchestration and speech synthesis. · Paid product · Platform · best for developers who want a managed voice pipeline with api-level control of agent behavior and tools
  - **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 Agents](https://agentsearchengine.app/agents/elevenlabs-agents) — Conversational voice agents powered by ElevenLabs' leading speech models. · Freemium · Platform · best for voice agents that need best-in-class speech quality and voice cloning
  - **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 Cognigy](https://agentsearchengine.app/agents/cognigy) — Configure enterprise conversational agents for chat and voice. · Paid product · Platform · best for enterprise contact-center teams evaluating configurable voice and chat agents with human handover
  - **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 type first, then GitHub stars)

1. [CyberVerse](https://agentsearchengine.app/agents/cyberverse) — Self hosted, real-time digital human agent platform. Build voice-first AI agents with WebRTC, persona memory, tools, RAG, and optional digital-human video. · Open source · Platform · 1.7k★ · Python · GPL-3.0 · repository push 27 days ago · best for 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
   - **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.
2. [echokit_server](https://agentsearchengine.app/agents/echokit-server) — Open Source Voice Agent Platform · Open source · Platform · 591★ · Rust · GPL-3.0 · repository push 7 months ago
   - **vs PolyAI:** Recorded pricing categories differ: PolyAI — Paid product; echokit_server — Open source. They do not establish total cost.
3. [Pipecat](https://agentsearchengine.app/agents/pipecat) — Compose voice and multimodal agents with Python processing pipelines. · Open source · Framework · 16k★ · Python · BSD-2-Clause · repository push 3 days ago · best for python developers who want to choose the services and processing stages in a custom voice or multimodal application
   - **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.
4. [LiveKit Agents](https://agentsearchengine.app/agents/livekit-agents) — Build voice and multimodal agents that participate in LiveKit rooms. · Open source · Framework · 15k★ · Python · Apache-2.0 · repository push 3 days ago · best for developers building custom voice or multimodal agents around livekit rooms and their own application logic
   - **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.
5. [xiaozhi-esp32-server](https://agentsearchengine.app/agents/xiaozhi-esp32-server) — Backend service for xiaozhi-esp32 -- helps you quickly build an ESP32 device control server. · Open source · Infrastructure · 11k★ · JavaScript · MIT · repository push 9 days ago · best for 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
   - **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.
6. [ten-vad](https://agentsearchengine.app/agents/ten-vad) — Voice Activity Detector (VAD): low-latency, high-performance and lightweight · Open source · SDK / library · 2.3k★ · C · repository push 8 months ago · best for frame-level real-time voice activity detection inside a larger voice pipeline, where latency and memory footprint matter
   - **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.

Category directory: 10 options from 36 voice agents indexed here. Complete list: https://agentsearchengine.app/category/voice-agents

Complete category directory (not equivalent substitutes): https://agentsearchengine.app/category/voice-agents

## FAQ

**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.

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Source: [Agent Search Engine](https://agentsearchengine.app) — https://agentsearchengine.app/alternatives/polyai