Best free XiaoZhi AI alternatives

Looking for a free alternative to XiaoZhi AI? Here are 9 real-time voice agents worth trying — 5 with a free tier. XiaoZhi AI itself is free.

ToolXiaoZhi AI (you searched)LiveKit AgentsPipecatBolna
Pricingfreefreefreefree
Best forOpen-source ESP32 voice chatbot with wake word, Opus streaming and a displayApache-2.0 open-source framework, fully self-hostable on your own serversBSD-2-Clause open-source Python framework for real-time voice/multimodal agentsOpen-source framework for phone voice agents, from an India-based team
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XiaoZhi AI alternatives — straight answers

What is the best free alternative to XiaoZhi AI?

LiveKit Agents is the closest free alternative to XiaoZhi AI: same Real-Time Voice Agents sub-category, and it is free. Apache-2.0 open-source framework, fully self-hostable on your own servers

Are there free XiaoZhi AI alternatives?

Yes — 5 of the 9 alternatives listed here are free or freemium: LiveKit Agents, Pipecat, Bolna, Kyutai Unmute, TEN Framework. None of them are paid-only.

Is XiaoZhi AI free?

XiaoZhi AI is free. There is no paid plan attached to it in the catalog.

How were these XiaoZhi AI alternatives chosen?

They are the other tools in Real-Time Voice Agents, then the rest of AI Agents & Automation, ordered free tiers first and capped at 9. There is no sponsorship and no paid placement in that ordering — only the pricing tier decides.

All XiaoZhi AI alternatives

Browse Real-Time Voice Agents →

LiveKit Agents

Real-Time Voice Agents
free

✦ WhyA XiaoZhi AI alternative — Apache-2.0 open-source framework, fully self-hostable on your own servers.

  • Apache-2.0 open-source framework, fully self-hostable on your own servers
  • Native WebRTC client support across web/mobile/telephony out of the box
  • Native Model Context Protocol (MCP) support for tool-using voice agents

Pipecat

Real-Time Voice Agents
free

✦ WhyA XiaoZhi AI alternative — BSD-2-Clause open-source Python framework for real-time voice/multimodal agents.

  • BSD-2-Clause open-source Python framework for real-time voice/multimodal agents
  • Supports distributed multi-agent systems with handoffs over a shared bus
  • Maintained by Daily with an active plugin ecosystem for STT/LLM/TTS providers

Bolna

Real-Time Voice Agents
freeNew

✦ WhyA XiaoZhi AI alternative — Open-source framework for phone voice agents, from an India-based team.

  • Open-source framework for phone voice agents, from an India-based team
  • Connects to telephony, STT, LLM and TTS providers of your choice
  • Supports Indian languages
  • Self-host free; hosted platform is pay-as-you-go

Kyutai Unmute

Real-Time Voice Agents
freeNew

✦ WhyA XiaoZhi AI alternative — Wraps any text LLM with Kyutai's streaming speech-to-text and text-to-speech for voice conversation.

  • Wraps any text LLM with Kyutai's streaming speech-to-text and text-to-speech for voice conversation
  • Open-source code and weights that can be self-hosted
  • Low-latency interruptible conversation
  • Free demo available online

TEN Framework

Real-Time Voice Agents
freeNew

✦ WhyA XiaoZhi AI alternative — Open-source framework for real-time conversational voice and multimodal agents.

  • Open-source framework for real-time conversational voice and multimodal agents
  • Modular graph of extensions in Python, Go, C++ and Node
  • Ships a playground and a VAD and turn-detection model
  • Free to self-host under an open license

Vapi

Real-Time Voice Agents
freemiumLeaving soon

✦ WhyA XiaoZhi AI alternative — Orchestrates STT/LLM/TTS providers of choice into one low-latency voice-agent pipeline.

  • Orchestrates STT/LLM/TTS providers of choice into one low-latency voice-agent pipeline
  • Usage-based per-minute pricing with free trial minutes included
  • SOC 2/HIPAA/PCI compliance add-ons for regulated call-center deployments

Retell AI

Real-Time Voice Agents
freemiumLeaving soon

✦ WhyA XiaoZhi AI alternative — Free starting credit with no contract required.

  • Free starting credit with no contract required
  • Supports swapping GPT, Claude or Gemini as the reasoning layer per agent
  • Batch calling campaigns plus live AI-to-human call transfer built in

Bland AI

Real-Time Voice Agents
freemiumLeaving soon

✦ WhyA XiaoZhi AI alternative — All-in-one per-minute pricing bundles LLM+STT+TTS with no separate token pass-through charges.

  • All-in-one per-minute pricing bundles LLM+STT+TTS with no separate token pass-through charges
  • Free start with call credits plus an inbound number included
  • Tiered platform fees (Build/Scale) unlock lower per-minute rates for high volume

Ultravox

Real-Time Voice Agents
freemiumLeaving soon

✦ WhyA XiaoZhi AI alternative — Speech-native processing skips the STT-to-text bottleneck, preserving tone/cadence/pitch.

  • Speech-native processing skips the STT-to-text bottleneck, preserving tone/cadence/pitch
  • Free tier: 5¢/min including TTS for up to 5 concurrent calls
  • Open-weight models (fixie-ai) published on Hugging Face for research use

XiaoZhi AI head-to-head