# Best free Retell AI alternatives

9 free alternatives to Retell AI and 0 more. Retell AI is free tier + paid.

## Alternatives

- [Bolna](https://aitools.flocci.in/tool/bolna) — Free — Open-source framework for phone voice agents, from an India-based team
- [Kyutai Unmute](https://aitools.flocci.in/tool/kyutai-unmute) — Free — Wraps any text LLM with Kyutai's streaming speech-to-text and text-to-speech for voice conversation
- [Vapi](https://aitools.flocci.in/tool/vapi) — Freemium — Orchestrates STT/LLM/TTS providers of choice into one low-latency voice-agent pipeline
- [Bland AI](https://aitools.flocci.in/tool/bland-ai) — Freemium — All-in-one per-minute pricing bundles LLM+STT+TTS with no separate token pass-through charges
- [Ultravox](https://aitools.flocci.in/tool/ultravox) — Freemium — Speech-native processing skips the STT-to-text bottleneck, preserving tone/cadence/pitch
- [LiveKit Agents](https://aitools.flocci.in/tool/livekit-agents) — Free — Apache-2.0 open-source framework, fully self-hostable on your own servers
- [Pipecat](https://aitools.flocci.in/tool/pipecat) — Free — BSD-2-Clause open-source Python framework for real-time voice/multimodal agents
- [TEN Framework](https://aitools.flocci.in/tool/ten-framework) — Free — Open-source framework for real-time conversational voice and multimodal agents
- [XiaoZhi AI](https://aitools.flocci.in/tool/xiaozhi-ai) — Free — Open-source ESP32 voice chatbot with wake word, Opus streaming and a display

## FAQ

### What is the best free alternative to Retell AI?

Bolna is the closest free alternative to Retell AI: same Real-Time Voice Agents sub-category, and it is free. Open-source framework for phone voice agents, from an India-based team

### Are there free Retell AI alternatives?

Yes — 9 of the 9 alternatives listed here are free or freemium: Bolna, Kyutai Unmute, Vapi, Bland AI, Ultravox. None of them are paid-only.

### Is Retell AI free?

Retell AI is free tier + paid. There is a free tier you can work in, with paid plans above it.

### How were these Retell 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.

## Related

- [Retell AI](https://aitools.flocci.in/tool/retell-ai)
- [Real-Time Voice Agents](https://aitools.flocci.in/category/ai-agents-automation/real-time-voice-agents)
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Source: Flocci AI Tools — https://aitools.flocci.in/alternatives/retell-ai

Facts last verified: October 2026