Hume EVI Gets GPT-5.2, Claude Opus 4, and ZERO Mode
Hume just shipped a meaningful update to its Emotionally intelligent Voice Interface (EVI): first-class support for five new frontier LLM models, a new `ZERO` prompt expansion mode that hands full...
Hume EVI Gets Configurable Turn Detection Now
Voice AI just got a lot more controllable. Hume has shipped configurable turn detection and interruption handling to its EVI (Empathic Voice Interface) API, and if you're building live voice agents,...
Hume's TTS Temperature Parameter Changes the Game
Hume just shipped an experimental `temperature` parameter for its text-to-speech endpoints. On the surface, it looks like a minor API addition. Underneath, it's a deliberate move to shift the...
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Hume pricing
- 10,000 Monthly included characters (TTS) per month
- 5 Monthly EVI usage included minutes per month
- RPM (requests per minute): 15
- Concurrent connections: 1
- Text-to-speech: Octave 1, Octave 2
- Monthly included characters: 10,000 (~10 minutes)
- 30,000 Monthly included characters (TTS) per month
- 40 Monthly EVI usage included minutes per month
- RPM (requests per minute): 15
- Concurrent connections: 5
- Text-to-speech: Octave 1, Octave 2
- Monthly included characters: 30,000 (~30 minutes)
1st month 50% off
- 140,000 Monthly included characters (TTS) per month
- 200 Monthly EVI usage included minutes per month
- RPM (requests per minute): 75
- Concurrent connections: 5
- Text-to-speech: Octave 1, Octave 2
- Monthly included characters: 140,000 (~140 minutes)
- 1,000,000 Monthly included characters (TTS) per month
- 1,200 Monthly EVI usage included minutes per month
- RPM (requests per minute): 75
- Concurrent connections: 10
- Text-to-speech: Octave 1, Octave 2
- Monthly included characters: 1,000,000 (~1,000 minutes)
- 3,300,000 Monthly included characters (TTS) per month
- 5,000 Monthly EVI usage included minutes per month
- RPM (requests per minute): 150
- Concurrent connections: 20
- Team seats: 3
- Text-to-speech: Octave 1, Octave 2
- 10,000,000 Monthly included characters (TTS) per month
- 12,500 Monthly EVI usage included minutes per month
- RPM (requests per minute): 225
- Concurrent connections: 30
- Team seats: 5
- Text-to-speech: Octave 1, Octave 2
- Monthly included characters: As much as you need
- RPM (requests per minute): Custom
- Concurrent connections: As much as you need
- Team seats: Unlimited
- Text-to-speech: Octave 1, Octave 2
- Monthly included characters: As much as you need
- TTS Additional characters (Creator)$0.15 / per 1,000 characters
- TTS Additional characters (Pro)$0.12 / per 1,000 characters
- TTS Additional characters (Scale)$0.1 / per 1,000 characters
- TTS Additional characters (Business)$0.05 / per 1,000 characters
- Additional EVI 3 minutes (Pro)$0.06 / per minute
- Additional EVI 3 minutes (Scale)$0.05 / per minute
- Additional EVI 3 minutes (Business)$0.04 / per minute
- Expression Measurement – Video with audio$0.0828 / per minute
Creator plan is 50% off the first month ($7 vs $14/month regular price). Starter and Free plans have no additional character overage pricing listed. Free and Starter plans have no additional EVI overage pricing listed. Expression Measurement Enterprise tier offers volume discounts (no specific rates listed).
Last verified Jun 11, 2026 · source ↗