Tone vs LiveKit Agents

Tone9.3Visit LiveKit Agents9.2Visit

Higher score Tone #2 in AI Voice Agents 9.3/10 Free plan Free plan✓ 4 of 4 features Visit Tone

vs

LiveKit Agents #3 in AI Voice Agents 9.2/10 Free plan Free plan✓ 4 of 4 features Visit LiveKit

• Tone fits best

  Teams wanting a complete open-source voice platform

• LiveKit Agents fits best

  Developers building realtime voice agents

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Side by side

Feature	Tone 9.3/10 Visit ↗	LiveKit Agents 9.2/10 Visit ↗
At a glance
Editor score	9.3	9.2
Ranking	#2 in AI Voice Agents	#3 in AI Voice Agents
Best for	Teams wanting a complete open-source voice platform	Developers building realtime voice agents
Pricing model	Free plan + paid	Free plan + paid
Starting price	$0.09 usage-based	$50/mo
Free plan	✓	✓
Free trial	—	—
Deployment	Cloud, Self-hosted	Self-hosted
Integrations	20 integrations	11 integrations
Features Tone 4/4 · LiveKit Agents 4/4
Inbound calls	✓	✓
Outbound calls	✓	✓
Human handoff	✓	✓
Custom phone numbers	✓	✓
Specs
Supported languages	29 languages	Not checked yet
Concurrent calls	Not checked yet	20 calls
Our review
Pros	Self-hosting includes unlimited agents, calls, workflows, and integrations. Visual workflows support conditional branches and human handoff. Testing, call observability, and knowledge citations are built in.	Connects pluggable LLM, STT, TTS, and realtime model providers Supports inbound and outbound telephony, transfers, and agent handoffs Includes testing, recordings, transcripts, traces, and logs
Cons	Self-hosting requires teams to bring their own LLM, voice, and telephony. Cloud usage is billed per minute rather than through a fixed plan. Enterprise pricing is not specified in the published plan details.	Building with the framework requires developer-led implementation Ship starts at $50/month; Scale is $500/month The listed feature set may be broader than needed for simple voice bots
Our verdict	Tone is an open-source platform for teams building phone and other conversational agents. It supports inbound and outbound calls, web widgets, chat, and SMS, with a runtime, workflow builder, knowledge base, testing tools, and… Read the review →	LiveKit Agents is an open-source framework for building programmable, realtime voice and multimodal AI agents. It is aimed at developers and teams creating conversational voice applications or other realtime AI experiences. Agents can run… Read the review →

Strengths and trade-offs

• Tone — where it wins

  • Self-hosting includes unlimited agents, calls, workflows, and integrations.
  • Visual workflows support conditional branches and human handoff.
  • Testing, call observability, and knowledge citations are built in.

  Where it doesn't

  • Self-hosting requires teams to bring their own LLM, voice, and telephony.
  • Cloud usage is billed per minute rather than through a fixed plan.
  • Enterprise pricing is not specified in the published plan details.

• LiveKit Agents — where it wins

  • Connects pluggable LLM, STT, TTS, and realtime model providers
  • Supports inbound and outbound telephony, transfers, and agent handoffs
  • Includes testing, recordings, transcripts, traces, and logs

  Where it doesn't

  • Building with the framework requires developer-led implementation
  • Ship starts at $50/month; Scale is $500/month
  • The listed feature set may be broader than needed for simple voice bots

• Tone9.3/10 · Free plan

  A full voice-agent toolkit with free self-hosting and cloud usage priced per minute.

  Visit ToneFull verdict →
• LiveKit Agents9.2/10 · Free plan

  An open framework for building realtime voice agents, with optional managed cloud plans.

  Visit LiveKitFull verdict →