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Empathic voice AI with expressive text-to-speech and EVI
Updated
Hume AI is a voice AI platform whose products generate expressive speech and hold spoken conversations that respond to the emotional tone of the speaker. Its two main offerings are text-to-speech built on the Octave engine and the Empathic Voice Interface (EVI).
Developers call Hume through its API. For TTS you send text and receive speech; for EVI you stream audio in and the model returns spoken replies. Each plan includes a monthly pool of TTS characters and EVI minutes, with overage billed at $0.05 to $0.15 per 1,000 characters and $0.04 to $0.07 per minute.
Developers building voice agents, apps and characters use it, along with creators who want expressive narration. Higher tiers add concurrent connections and team seats, and Enterprise adds Slack support and SOC 2 Type II, GDPR and HIPAA compliance.
Hume lists Free at $0, Starter at $3, Creator at $7 (50% off the first month, then $14), Pro at $70, Scale at $200 and Business at $500 a month, plus custom Enterprise. Free includes 10,000 TTS characters and 5 EVI minutes.
Alternatives include Play.ht for voice generation, Resemble AI for voice cloning, WellSaid Labs for studio narration, LOVO for voiceovers, and Speechify for text-to-speech reading.
Pricing Model
SUBSCRIPTION
Starting Price
$3/mo
Free Options
Free version
| Feature | Free | Starter | Creator | Pro Popular | Scale | Business | Custom |
|---|---|---|---|---|---|---|---|
| 10,000 TTS characters | , | , | , | , | , | , | |
| 5 EVI minutes | , | , | , | , | , | , | |
| 1 concurrent connection | , | , | , | , | , | , | |
| 30,000 TTS characters | , | , | , | , | , | , | |
| 40 EVI minutes | , | , | , | , | , | , | |
| 5 concurrent connections | , | , | , | , | , | , | |
| 140,000 TTS characters | , | , | , | , | , | , | |
| 200 EVI minutes | , | , | , | , | , | , | |
| Reported $14 after the first month | , | , | , | , | , | , | |
| 1,000,000 TTS characters | , | , | , | , | , | , | |
| 1,200 EVI minutes | , | , | , | , | , | , | |
| 10 concurrent connections | , | , | , | , | , | , | |
| 3,300,000 TTS characters | , | , | , | , | , | , | |
| 5,000 EVI minutes | , | , | , | , | , | , | |
| 3 team seats | , | , | , | , | , | , | |
| 10,000,000 TTS characters | , | , | , | , | , | , | |
| 12,500 EVI minutes | , | , | , | , | , | , | |
| 5 team seats | , | , | , | , | , | , | |
| Enterprise: unlimited usage, Slack support, SOC 2 Type II, GDPR, HIPAA | , | , | , | , | , | , |
Other
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API Types
SDK Availability
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Developer Features
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Compliance Standards
SOC 2 Type II
EnterpriseISO 27001
EnterpriseGDPR Compliant
GlobalHIPAA
HealthcarePCI DSS
FinanceCCPA
PrivacyFedRAMP
GovernmentCSA STAR
CloudDeployment & Data
Data Residency Options
Verify with vendor for your specific region requirements.
Text-to-speech reader with 1,000+ voices, AI summaries and dictation
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