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ElevenLabs vs Cartesia
Agent-native side-by-side. Scores are curated estimates on a 0–10 scale. Lock-in: higher = worse. Prefer JTBD picks via /api/decide when choosing for a job.
| Dimension | ElevenLabs | Cartesia |
|---|---|---|
| Overall | 8.3 | 7.8 |
| Capability fit | 9.4 | 8.4 |
| Price / performance | 7.5 | 8.0 |
| Latency / reliability | 8.8 | 7.8 |
| Developer & agent DX | 9.0 | 8.4 |
| Privacy / data retention | 7.0 | 7.5 |
| Lock-in risk (higher = worse) | 5.5 | 4.5 |
| Maturity / track record | 8.8 | 7.0 |
| Pricing | TTS/STS/voice agents; character/credit plans; telephony integrations (e.g. Twilio). | As of 2026-09-14: Credit plans — Free $0 (20k credits), Pro $5 (100k), Startup $49 (1.25M), Scale $299 (8M) + prepaid agent minutes. Sonic TTS + Ink STT + voice agents. Cartesia phone numbers ~$0.014/min. Ultra-low-laten… |
| Tagline | Default voice layer for talking agents. Combine with Twilio for phone; watch cloning policy. | Top pick for realtime low-latency voice agents. ElevenLabs for voice library breadth. |
ElevenLabs
Default voice layer for talking agents. Combine with Twilio for phone; watch cloning policy. Strengths: Best-in-class TTS quality for many languages; Voice cloning + agents features; Good API for products.
Strengths
- Best-in-class TTS quality for many languages
- Voice cloning + agents features
- Good API for products
Weaknesses
- Voice cloning ethics/ToS care required
- Cost at high character volume
- Alternatives catching up
Cartesia
Top pick for realtime low-latency voice agents. ElevenLabs for voice library breadth. Strengths: Ultra-low-latency TTS; Simple credit plans; Voice agents + STT in one.
Strengths
- Ultra-low-latency TTS
- Simple credit plans
- Voice agents + STT in one
Weaknesses
- Credit math less intuitive than per-char
- Younger than ElevenLabs
- Voice catalog still growing
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