Head to head / AI Voice
Cartesia vs Hume AI
- →Cartesia is cheaper per million characters ($39.2 vs $100).
- →Hume AI is cheaper to start ($3/mo vs $5/mo).
| Compared | Cartesia | Hume AI |
|---|---|---|
| Cost / 1M chars | $39.2 | $100 |
| Starting price | $5/mo | $3/mo |
| Free tier | — | — |
| Visit Cartesia | Visit Hume AI |
Feature by feature
| Feature | Cartesia | Hume AI |
|---|---|---|
| Languages | 40+ | 11+ (Octave) |
| Voice cloning | Yes | Yes (unlimited) |
| API | Yes | Yes |
| Commercial use | Paid plans | Yes |
| Styles/emotions | Yes | Yes (core strength) |
| Output | MP3, WAV, PCM | MP3/WAV/PCM stream |
Cartesia
Developers building real-time voice agents where latency matters most.
- +Ultra-low latency streaming
- +Instant cloning from ~10s audio
- +40+ languages on one model
- +Competitive per-character pricing
Hume AI
Developers building emotionally expressive or empathic conversational voice agents.
- +Best-in-class emotional/expressive prosody
- +Empathic real-time voice interface (EVI)
- +Unlimited voice cloning on paid tiers
- +Commercial license on all plans
Compared on the metrics we track for this category. Prices are the cheapest paid tier. Some links are affiliate links.