Head to head / AI Voice
Cartesia vs Unreal Speech
- →Unreal Speech is cheaper per million characters ($16 vs $39.2).
- →Cartesia is cheaper to start ($5/mo vs $49/mo).
| Compared | Cartesia | Unreal Speech |
|---|---|---|
| Cost / 1M chars | $39.2 | $16 |
| Starting price | $5/mo | $49/mo |
| Free tier | — | — |
| Visit Cartesia | Visit Unreal Speech |
Feature by feature
| Feature | Cartesia | Unreal Speech |
|---|---|---|
| Languages | 40+ | 8 |
| Voice cloning | Yes | No |
| API | Yes | Yes |
| Commercial use | Paid plans | Yes (free needs attribution) |
| Styles/emotions | Yes | Limited (pitch/speed) |
| Output | MP3, WAV, PCM | MP3/PCM/WAV + timestamps |
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
Unreal Speech
Developers who need cheap, scalable TTS for high-volume apps, narration, or captions.
- +Among the cheapest per-character TTS
- +Low-latency real-time streaming
- +Per-word timestamps for subtitles
- +Generous 250k-character free tier
Compared on the metrics we track for this category. Prices are the cheapest paid tier. Some links are affiliate links.