Compare Lab
Hume AI vs LiveKit
Hume AI is positioned as hume TTS and EVI API sunset: announced access end November 13, 2026 at 05:01 UTC. Retained for historical comparison and migration research. LiveKit is positioned as realtime agent infrastructure for teams
Hume AI is positioned as hume TTS and EVI API sunset: announced access end November 13, 2026 at 05:01 UTC. Retained for historical comparison and migration research. LiveKit is positioned as realtime agent infrastructure for teams that own the application and model stack. Start by deciding who owns the missing layers, then inspect the documented differences below.
Voice Engines and Developer Frameworks are different product categories. An underlying engine or framework is not a complete substitute for a deployed agent workflow.
17 jointly documented catalog fields. This measures evidence coverage, not equivalent quality or an overall winner.
TTS + EVI API sunset · Announced end: 13 Nov 2026, 05:01 UTC. Read notice & sources →
Test opening hours, booking conflicts and an unanswered transfer.
Start where the records differ.
Values and evidence states are compared together. Shared facts follow the differences; Unknown never means No.
| Decision point | Hume AI | LiveKit |
|---|---|---|
| Billing modelDifferent records | monthly-bundle | component-stack |
| Billing unitDifferent records | Monthly subscription + EVI minutes / TTS characters / supplemental LLM usage | Plan/month + agent minutes + telephony minutes + inference tokens/characters/audio + observability entries |
| Bring your telephonyDifferent records | Yes | Yes |
| Warm transferDifferent records | Unknown | Yes |
| HIPAA pathDifferent records | Yes | Yes |
| WebhooksDifferent records | YesAPI / webhook | YesUnknown |
Your requirements & next steps
Your requirements
Ready-made / AI receptionist · Strict evidence mode
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Subscription includes TTS/EVI/Voice allowances; overage and managed external LLM usage add cost.
Plan plus session, telephony, inference, observability and other usage; example calculator minute total is not fixed price.
Free plan exists; paid entry is not a complete phone-call bill.
Agent session component only; not complete call cost.
Incompatible product allowances are not collapsed into one all-in minute price.
No universal conversion of model inference to minute rate.
First-month Creator promotion is separate from regular price; Enterprise custom.
Usage overages and model inference additional.
Plan-scoped EVI allowance; does not include every third-party carrier/model charge.
Separate allowance buckets; no implied complete free call quantity.
TTS characters, EVI minutes and supplemental model usage remain separate.
Build allowances are hard caps; paid usage beyond allowances is incremental, not a complete price/minute.
Usage mix and selected providers required.
Not yet researched against this buyer-critical field standard.
Not yet researched against this buyer-critical field standard.
The calculator example $0.0479/min is assumption-specific; no maximum complete bill from minutes alone.
The calculator example $0.0479/min is assumption-specific; no maximum complete bill from minutes alone.
Anyone with this link can view the encoded decision criteria.
Vendor documentation establishes a claim. Public model benchmarks are separate context, not measurements of these platforms.
Open saved comparison ↗What to verify together.
Hume AI
VoiceAgent.best recommends evaluating migration options rather than starting a new long-term TTS or EVI API deployment. This is our editorial judgment; replacement compatibility has not been established.
$3/month Starter; included EVI minutes and overage depend on plan · V3.3 evidence review · Starter subscription reference; EVI 40 minutes; external LLM/telephony extra
Excluded / confirm: Complete cost cannot be established from this reference. Selected external LLM, carrier, token/character consumption and overages prevent a complete cost ceiling from monthly minutes alone. · Hume-managed external LLM usage extra; BYO key/custom model paid outside Hume; Twilio separate
Subscription includes TTS/EVI/Voice allowances; overage and managed external LLM usage add cost.
LiveKit
Agent-session pricing excludes a complete inference and telephony stack.
Paid Cloud agent sessions $0.01/min beyond allowance · V3.3 evidence review · Cloud Ship starting subscription; session overage, inference, transport and artifacts extra
Excluded / confirm: Complete cost cannot be established from this reference. The calculator example $0.0479/min is assumption-specific; no maximum complete bill from minutes alone. · Inference, phone number/transport, recording and observability, outbound carrier, bandwidth and optional private links
Plan plus session, telephony, inference, observability and other usage; example calculator minute total is not fixed price.
The evidence overlap.
Both records have documented values for Product type, Technical setup, Pricing model, Published numeric pricing, Free tier, Twilio, Realtime / streaming audio, OpenAI models, Anthropic models, Google models, Bring your model, Interruption controls and additional fields shown in Compare. Matching availability does not measure behavior under your call conditions.
Run the same booking, tool failure and unsuccessful human-transfer cases. Record both outcomes and billable units before signing a deployment agreement.
Review Hume API sunset & migration guidance →