Hume AI
Hume AI
Voice AI APIs built around emotion: speech synthesis, a conversational voice interface and expression measurement.

Platforms
Overview
Hume AI is a research company building "AI with emotional intelligence," offering text-to-speech, the EVI conversational voice interface and an Expression Measurement API that reads vocal and facial expression. Pricing tiers are set by monthly TTS characters, EVI minutes and concurrent connections, starting with a free plan; overage rates fall as tiers rise. Enterprise covers SOC 2 Type II, GDPR and HIPAA.
Main features
- Speech synthesis with emotional expression
- Conversational voice interface (EVI)
- Expression measurement API
- Unlimited voice cloning
- Tiers by concurrent connections
- SOC 2 Type II, GDPR and HIPAA (Enterprise)
Pricing
Free
Free
Published price (USD) · Source
- 10,000 TTS characters/month (~10 min)
- 5 EVI minutes
- 1 concurrent connection
- Unlimited voice cloning
- 3 team seats
- Discord support
Last verified: September 2026
Starter
$3/month
Published price (USD) · Source
- 30,000 TTS characters/month (~30 min)
- 40 EVI minutes
- 5 concurrent connections
- Unlimited voice cloning
Last verified: September 2026
Creator
$14/month
Published price (USD) · Source
- Regularly $14/month (discounted to $7)
- 140,000 TTS characters/month (~140 min)
- 200 EVI minutes
- 5 concurrent connections
- 75 RPM
Last verified: September 2026
Pro
$70/month
Published price (USD) · Source
- 1,000,000 TTS characters/month (~1,000 min)
- 1,200 EVI minutes
- 10 concurrent connections
- 75 RPM
Last verified: September 2026
Hume AI publishes one price worldwide and bills in USD. There is no separate price in your local currency.
Screenshots

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