Features, pricing, and fit
Compare Copilot Studio Voice and Empathic Voice Interface on voice capabilities, pricing, and fit.
Compare Copilot Studio Voice and Hume EVI for AI phone agents, then match channels, workflows, and deployment models to your call flow.
Copilot Studio real-time agents deploy to voice and digital channels with a selectable GPT-Realtime native mode or GPT-5-Chat preview plus Neural TTS.
Microsoft teams that need Copilot Studio topics, tools, knowledge, handoffs, and explicit voice configuration across channels.
Explore its buying criteria: AI phone agents · Contact-center AI · Conversation builders.
EVI is a speech-to-speech WebSocket API that streams transcripts, vocal-expression measures, assistant text, and response audio.
Developers evaluating prosody-aware spoken interactions with configurable voices and optional supplemental LLMs.
Explore its buying criteria: AI phone agents · Voice AI platforms.
Both profiles checked 2026-09-04.
Use the table below to compare each provider’s documented scope.
Before you decide
Copilot Studio Voice: Per-user/month Dynamics 365 Contact Center licensing with Copilot pay-as-you-go credits, plus Azure and telephony costs. Hume EVI: 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 both vendors to quote the same expected workload, required channels, and implementation scope. Include required subscriptions and usage charges before comparing the total; the listed starting prices alone may cover different work.
The recorded knowledge and data sources for Copilot Studio Voice include Not publicly documented. For Hume EVI, they include Not publicly documented. Ask each provider to demonstrate access for the exact systems you use, with permissions, freshness, and failure behavior. A source missing from this directory is not proof that a provider cannot support it.
Use the same representative calls, approved instructions, and escalation rules in both pilots. How does it handle interruption and uncertainty? Which actions can it complete, and which require approval? What context reaches a human during transfer? Record conversation quality, completed tasks, human handoffs, and total cost in the buyer worksheet. Check these specific cautions before launch: Copilot Studio Voice: Product names, licenses, previews, and architecture vary. Require a bill of materials for Copilot, Dynamics, Azure, telephony, and services. Hume EVI: Empathic positioning is not proof of accurate emotion inference. Test false interpretations, cultural variation, consent, sensitive uses, and escalation.
Record your requirements and pilot results in the buyer worksheet →
Swipe or scroll the table to see every column.
| Criterion | Copilot Studio Voice | Empathic Voice Interface |
|---|---|---|
| Provider type | Enterprise agent builder and contact-center AI | Expressive native voice model API |
| Best fit | Microsoft teams that need Copilot Studio topics, tools, knowledge, handoffs, and explicit voice configuration across channels. | Developers evaluating prosody-aware spoken interactions with configurable voices and optional supplemental LLMs. |
| Key capabilities | visual authoring; native or cascaded voice; Power Platform actions; knowledge; handoff; governance | prosody-aware interaction; expressive output; realtime sessions; tools |
| Team sizes | mid-market; enterprise; contact centers; developer | startup; mid-market; enterprise; developer |
| Call surfaces | voice channels; Dynamics 365 Contact Center; digital channels | WebSocket; web; mobile; telephony integrations |
| Voice stack | Native GPT-Realtime mode or cascaded GPT-5-Chat mode | Native speech-to-speech with prosody-sensitive processing |
| Telephony | Dynamics 365 Contact Center and Azure integration paths | Not publicly documented |
| Call controls | Not publicly documented | Not publicly documented |
| Languages | Not publicly documented | Not publicly documented |
| Integrations | Not publicly documented | Not publicly documented |
| Knowledge and data | Not publicly documented | Not publicly documented |
| Pricing model | Per-user/month Dynamics 365 Contact Center licensing with Copilot pay-as-you-go credits, plus Azure and telephony costs. | 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. |
| Pricing signal | Dynamics Voice $95/user/month, Contact Center $110, Premium $195, plus Azure/Copilot and telephony. | 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. |
| Free plan or trial | Not publicly documented | Free plan includes 5 EVI minutes; confirm the selected EVI version and current terms. |
| What stands out | Microsoft exposes a deliberate runtime choice: GPT-Realtime uses native speech-to-speech, whereas GPT-5-Chat preview uses text reasoning with Neural TTS; voice settings also offer server or semantic VAD. | 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 | Product names, licenses, previews, and architecture vary. Require a bill of materials for Copilot, Dynamics, Azure, telephony, and services. | Empathic positioning is not proof of accurate emotion inference. Test false interpretations, cultural variation, consent, sensitive uses, and escalation. |
Microsoft teams that need Copilot Studio topics, tools, knowledge, handoffs, and explicit voice configuration across channels.
Microsoft exposes a deliberate runtime choice: GPT-Realtime uses native speech-to-speech, whereas GPT-5-Chat preview uses text reasoning with Neural TTS; voice settings also offer server or semantic VAD.
Developers evaluating prosody-aware spoken interactions with configurable voices and optional supplemental LLMs.
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.
Verify current pricing, limits, security, and required integrations directly with each provider before purchasing.
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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