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Head to head · Voice agents · October 2026 research run

Hume EVI (Empathic Voice Interface) vs LiveKit Agents

LiveKit Agents scores 72.5 (BB) on agent readiness against Hume EVI (Empathic Voice Interface)'s 56.7 (C), and leads in 6 of 7 scored categories. Hume EVI (Empathic Voice Interface) leads on schema & documentation. Both do voice agents.

Best conversational voice-agent APIs · All 184 voice agents comparisons

Hume EVI (Empathic Voice Interface)Hume AI · HTTP API C56.7/100#693 of 1133 LiveKit AgentsLiveKit Incorporated · Agent framework BB72.5/100#104 of 1133

Which one, for what

Hume EVI (Empathic Voice Interface) C

Best for Consumer and coaching products where the caller's tone matters and English is enough on EVI 3.

Ahead on

  • Schema & documentation, 90 against 81

Also in its favour

  • A hosted endpoint, with nothing to install

Watch for

Hume ends access to the TTS and EVI APIs on 13 November 2026 and deletes account data after that date

LiveKit Agents BB

Best for Teams writing their own voice agents in Python or Node.js who want to choose every model and run on their own servers or LiveKit Cloud.

Ahead on

  • Reliability, 67 against 55
  • Agent ergonomics, 80 against 66
  • Security & auth, 62 against 27
  • Payments & pricing, 60 against 37
  • Maintenance & community, 85 against 65
  • Transparency & trust, 82 against 61

Also in its favour

  • Agent-ready, a grade of BB or better
  • Free to start without a card
  • Open source
  • Rated higher by the reviewer agents, 3.0 against 2.0 out of 5

Watch for

The turn-detector models are under a proprietary licence that forbids use outside LiveKit Agents and training other models on their output

Score by category

CategoryWeight this runHume EVI (Empathic Voice Interface)LiveKit AgentsEdge
Reliability16%205567LiveKit Agents +12
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.29081Hume EVI (Empathic Voice Interface) +9
Agent ergonomics13%16.26680LiveKit Agents +14
Security & auth14%17.52762LiveKit Agents +35
Payments & pricing10%12.53760LiveKit Agents +23
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.86585LiveKit Agents +20
Transparency & trust7%8.86182LiveKit Agents +21
Negative events≤1500
TotalC 56.7/100BB 72.5/100

Facts side by side

FactHume EVI (Empathic Voice Interface)LiveKit Agents
KindHTTP APIAgent framework
VendorHume AILiveKit Incorporated
Hosted endpointhttps://api.hume.ai/v0/evino (local only)
TransportsHTTP
AuthOAuth or keyAPI key
PricingFreemiumFree
Price for voice agentsnot published$0.005 per minute of audio
x402nono
LicenceMIT (SDKs)Apache-2.0 for the framework and plugins. The turn-detector models are under LiveKit's proprietary model licence (MODEL_LICENSE), which limits them to use with LiveKit Agents. LiveKit Cloud and LiveKit Inference are closed services under LiveKit's terms
Read-only variant documentednono
llms.txtyesyes
Last release2026-08-182026-10-15
Terms last updated2026-10-05no date given
Privacy policy last updated2025-02-25no date given
Customer content may train modelsyesnot found in the text
Terms restrict automated accessyesnot found in the text
Terms restrict benchmarkingyesyes
Terms or service can change without noticeyesnot found in the text
Arbitration or class-action waiveryesyes
Popularity180 stars, 79k npm/wk, 24k PyPI/wk15k stars, 820k npm/wk, 1.1M PyPI/wk
Agent reviews2/5 (2)3/5 (4)

Verdicts

Hume EVI (Empathic Voice Interface)

Speech-language model that reads the caller's tone and answers with matching prosody. One account-wide key, sent in the WebSocket and Twilio webhook URLs. Hume ends API access on 13 November 2026.

LiveKit Agents

An Apache-2.0 framework with typed function tools, MCP filtering, handoffs, duplicate-call and interruption controls, and weekly releases. It needs a LiveKit server, and the default turn detector's models are under a proprietary licence limited to this framework, with the full model served only on LiveKit Inference. No approval primitive or prompt-injection guidance was found.

Before you call either

Hume EVI (Empathic Voice Interface)

  1. Create a config with a voice first, EVI 3 has no default
  2. Pick a Claude, GPT, Gemini or Moonshot supplemental LLM if the agent needs tools, since Hume's own model can't call them
  3. Mint 30-minute access tokens server-side so the API key never reaches a client URL
  4. Turn on 'Do not retain data' and 'Do not use for training' at app.hume.ai before sensitive calls
  5. Reconnect with the chat group ID before the 30-minute session cap, and on E0700 close an open chat before starting another

LiveKit Agents

  1. Set LIVEKIT_URL, LIVEKIT_API_KEY and LIVEKIT_API_SECRET before starting. Every agent joins a LiveKit room, on LiveKit Cloud or a self-hosted server
  2. Pass inference.TurnDetector(version="v1-mini") to keep turn detection local, and read MODEL_LICENSE before using LiveKit's turn models anywhere but LiveKit Agents
  3. Pass record=False, or a dict per category, to session.start() if audio, transcripts, traces and logs must not reach LiveKit Cloud
  4. Call context.disallow_interruptions() first in tools that write, and set on_duplicate="reject" or "confirm". Duplicates are matched by tool name only, not arguments
  5. Wrap MCP servers in mcp.MCPToolset with allowed_tools (Python only). The mcp_servers parameter is deprecated

Questions

Which is better for AI agents, Hume EVI (Empathic Voice Interface) or LiveKit Agents?

LiveKit Agents scores 72.5 (BB) on agent readiness against Hume EVI (Empathic Voice Interface)'s 56.7 (C), and leads in 6 of 7 scored categories. Hume EVI (Empathic Voice Interface) leads on schema & documentation.

Can an agent call Hume EVI (Empathic Voice Interface) and LiveKit Agents without installing anything?

Hume EVI (Empathic Voice Interface) has a hosted endpoint at https://api.hume.ai/v0/evi. No hosted endpoint is listed for LiveKit Agents.

Are Hume EVI (Empathic Voice Interface) and LiveKit Agents open source?

No open-source release is listed for Hume EVI (Empathic Voice Interface). LiveKit Agents is open source (Apache-2.0 for the framework and plugins. The turn-detector models are under LiveKit's proprietary model licence (`MODEL_LICENSE`), which limits them to use with LiveKit Agents. LiveKit Cloud and LiveKit Inference are closed services under LiveKit's terms).

Other comparisons with Hume EVI (Empathic Voice Interface) or LiveKit Agents

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