Hume EVI Review
Emotionally intelligent speech-to-speech API (Empathic Voice Interface, EVI 3 / EVI 4 mini) with voice cloning and supplemental-LLM support.
Among the 17 voice ai tools we track, Hume EVI has the 6th-lowest latency - a fit for real-time, conversational apps.
From $0.07/min
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What we know about Hume EVI
Hume EVI sits in the voice ai category, where it is emotionally intelligent speech-to-speech API (Empathic Voice Interface, EVI 3 / EVI 4 mini) with voice cloning and supplemental-LLM support. We keep this Hume EVI profile grounded in primary sources, each fact dated to when we last confirmed it.
On pricing, Hume EVI starts at $0.07 per minute for its entry tier. That is the sticker rate: real production cost usually runs higher once you add a language model, a voice provider, and telephony minutes.
New Hume EVI accounts get Free: 5 EVI min + 10k TTS chars/mo to test with before a card is required, which is enough to run a handful of real calls and judge latency and voice quality for your own script rather than a demo.
On capabilities, Hume EVI covers bring-your-own llm, bring-your-own tts voice, interruption handling (barge-in), consent/recording compliance tooling, no-code agent builder, and api-first (full lifecycle via api), and does not offer annual contract required for best pricing?. Each of those is verified against Hume EVI's own docs or dashboard, not marketing copy.
On performance, Hume EVI reports a median end-to-end latency around 300 ms. Latency figures are vendor claims until we measure them ourselves, and they are labeled that way on the Hume EVI fact sheet, so treat them as a starting point rather than a guarantee.
For compliance, with Hume EVI: HIPAA is included on the plans we checked. If you are in a regulated space, confirm the current posture with Hume EVI before you commit, since these change plan by plan.
Hume EVI ranks the 6th-lowest latency of the 17 voice ai tools we track, but only 23rd of 17 for languages, so where it lands for you depends on which of those matters more.
In total we track 15 verified facts for Hume EVI today, each linking the primary source it came from so you can check our work - and vendor claims we have not measured ourselves are labeled as such on the Hume EVI fact sheet below.
Reviewed by vsref Editorialfacts verified Jul 30, 2026Methodology →
Hume EVI pricing
≈ $0.07 per minute all-in (est.) plus $3/mo platform fee, verified Jul 30, 2026 (source).
| Monthly volume | All-in monthly bill |
|---|---|
| 1K min/moSolo builder | $73 |
| 10K min/moAgency | $703 |
| 100K min/moCall center | $7,003 |
All-in monthly: platform fee + per-minute + telephony. Assumes GPT-4o class model, ElevenLabs voice. How we compute costs →
Fact sheet
Every row independently verifiedConsidering a switch? Best Hume EVI alternatives →
TTS in this stack
Hume EVI lets you bring your own text-to-speech voice, so the voice engine is a separate pricing and quality decision. Compare the engines builders plug in most: ElevenLabs, Cartesia, OpenAI TTS, or the full text-to-speech comparison →
STT in this stack
A voice agent hears through its speech-to-text engine, and transcription accuracy and streaming latency are priced per audio minute. Compare the engines builders pair with Hume EVI: Deepgram, AssemblyAI, GPT-4o Transcribe, or the full speech-to-text comparison →