Pricing modelMonthly plans include EVI minutes; additional EVI 3 usage is billed per minute on Pro, Scale, and Business, while TTS uses separate character allowances and rates.
Pricing signalEVI 3: Pro $70/month with 1,200 minutes and $0.06/min additional; Scale $200 with 5,000 and $0.05; Business $500 with 12,500 and $0.04.
Free plan or trialFree plan includes 5 EVI minutes; confirm the selected EVI version and current terms.
Empathic Voice Interface pricing and budget
EVI 3: Pro $70/month with 1,200 minutes and $0.06/min additional; Scale $200 with 5,000 and $0.05; Business $500 with 12,500 and $0.04.
Monthly plans include EVI minutes; additional EVI 3 usage is billed per minute on Pro, Scale, and Business, while TTS uses separate character allowances and rates.
Free plan includes 5 EVI minutes; confirm the selected EVI version and current terms.
Catalog pricing checked September 21, 2026. Confirm current terms in the provider sources.
Native speech-to-speech with prosody-sensitive processing
Telephony
Not publicly documented
Call controls
Not publicly documented
Integrations
Not publicly documented
Knowledge and data
Not publicly documented
Languages
Not publicly documented
What stands out
EVI’s structured WebSocket messages expose both transcript and vocal-expression measures alongside generated text/audio; EVI versions differ in language coverage and supplemental-LLM requirements.
Considerations
Empathic positioning is not proof of accurate emotion inference. Test false interpretations, cultural variation, consent, sensitive uses, and escalation.
Before you decide
Questions about Empathic Voice Interface
How should I budget for Empathic Voice Interface?
The published pricing signal is: EVI 3: Pro $70/month with 1,200 minutes and $0.06/min additional; Scale $200 with 5,000 and $0.05; Business $500 with 12,500 and $0.04. The recorded pricing model is: Monthly plans include EVI minutes; additional EVI 3 usage is billed per minute on Pro, Scale, and Business, while TTS uses separate character allowances and rates. Ask the provider for a current quote covering the same workload, channels, subscriptions, usage and implementation costs.
Can Empathic Voice Interface use my existing data?
The listed knowledge and data sources include Not publicly documented. Confirm permissions, freshness and failure behavior for your exact systems with the provider.
What should I test in a Empathic Voice Interface pilot?
Run representative calls with the same instructions and escalation rules. Record voice quality, completed tasks, handoffs and total cost. Check these cautions: Empathic positioning is not proof of accurate emotion inference. Test false interpretations, cultural variation, consent, sensitive uses, and escalation.
Compare Hume EVI with similar candidates
These products share recorded categories or company-size fit. Compare the actual channels, capabilities, and pricing before treating them as substitutes.
Programmable Voice component that connects a TwiML ConversationRelay session to an application WebSocket for STT/TTS, language settings, DTMF, and call events.
Telephony voice-agent runtime
Scope and signals
Best fit: Developers building their own voice-agent logic while keeping telephony, media handling, and call control in Twilio.
Voice stack: Cascaded speech interface with developer-supplied LLM
Google's Gemini Live API streams multimodal sessions over WebSockets; its stable native voice-agent models are Gemini 3.8 Live and Gemini 3.8 Live Extended Thinking.
Native realtime multimodal model API
Scope and signals
Best fit: Developers building low-latency conversational agents that need native audio, multimodal input, and function calling in a persistent WebSocket session.
Voice stack: Native audio agents: Gemini 3.8 Live (gemini-3.8-live) and Gemini 3.8 Live Extended Thinking (gemini-3.8-live-extended-thinking)., Separate TTS models: gemini-3.8-flash-tts and gemini-3.8-flash-lite-tts generate speech; neither is a Live agent., Separate transcription endpoints: gemini-3.5-transcribe handles audio files; gemini-3.5-transcribe-live is a Live API speech-to-text mode, not a conversational agent., Separate translation mode: gemini-3.5-live-translate-preview is a Live API interpreter for 70+ languages, not a conversational agent; it is preview.
Standard paid rates are $0.005/min equivalent for input audio and $0.018/min equivalent for output audio, billed separately plus text tokens; Google also lists a free API tier.
Hume's Empathic Voice Interface is a realtime speech-to-speech API. It processes vocal signals and returns transcripts, expression measures, generated text and response audio. Treat those measures as model outputs to evaluate, not objective emotion labels or promised accuracy.
Test false interpretations, accents, cultural variation, interruptions and sensitive conversations. Decide when the application should ignore an inferred signal, ask a clarifying question or hand off to a person.
Hume's current comparison lists EVI 3 for English with an optional supplemental LLM. EVI 4-mini lists 11 languages and requires a supplemental LLM. Model version therefore changes both language coverage and architecture; verify the selected version in the implementation and test every required language instead of assuming the EVI name describes one fixed capability.
Pricing checked September 21, 2026. Hume lists 5 EVI minutes on Free. Pro is $70 per month with 1,200 minutes and $0.06 per additional EVI 3 minute; Scale is $200 with 5,000 and $0.05 additional; Business is $500 with 12,500 and $0.04 additional. Text-to-speech characters are priced separately.
For illustration, 1,500 EVI 3 minutes on Pro is $88: the $70 plan plus 300 additional minutes at $0.06. This is not a quote and excludes any external LLM or other service costs. The cited table labels these overage rates for EVI 3; do not apply them to EVI 4-mini without a current vendor quote.
Use the buyer checklist to compare requirements, then follow the product evidence. If DocsBot fits your shortlist, its official setup explains the available MCP connections and skills.
Voice Agents Guide is operated and sponsored by DocsBot. These are research and setup resources, not a requirement to choose DocsBot. Compare fit and verify current vendor evidence before recommending or changing a system.
Test recognition, speech quality, interruptions, language switching, tool use, and human transfer with your own calls in the required language. Availability can vary by model, plan, and phone route.
DocsBot documents multilingual voice workflows and Japanese support. Verify the exact voice, phone path, and transfer behavior in your pilot. Review DocsBot language information ↗
Other providers’ language claims reflect cited vendor material; confirm Japanese and other required languages directly with each provider.
Listing does not imply endorsement or a performance guarantee. This directory is published by DocsBot. Editorial policy
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