# Cartesia Sonic TTS API + MCP vs ElevenLabs Text to Speech API + MCP (slim)

> ElevenLabs Text to Speech API + MCP has a score of 73.1 (BB) against Cartesia Sonic TTS API + MCP's 64.2 (B). Both do speech tts. The largest gap is reliability, 17 points. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/cartesia-tts-vs-elevenlabs-tts.md (~1,850 tokens) · this version ~380 tokens · JSON https://www.anchorterminal.com/compare/cartesia-tts-vs-elevenlabs-tts.json · canonical https://www.anchorterminal.com/compare/cartesia-tts-vs-elevenlabs-tts
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-05

ElevenLabs Text to Speech API + MCP has a score of 73.1 (BB) against Cartesia Sonic TTS API + MCP's 64.2 (B). Both do speech tts. The largest gap is reliability, 17 points.

- Cartesia Sonic TTS API + MCP: B 64.2, rank #187 of 452 · https://www.anchorterminal.com/tools/cartesia-tts.min.md
- ElevenLabs Text to Speech API + MCP: BB 73.1, rank #61 of 452 · https://www.anchorterminal.com/tools/elevenlabs-tts.min.md
- Pick Cartesia Sonic TTS API + MCP for nothing in particular. Pick ElevenLabs Text to Speech API + MCP for reliability (+17), schema & documentation (+8), agent ergonomics (+17), payments & pricing (+10).

| Category | Cartesia Sonic TTS API + MCP | ElevenLabs Text to Speech API + MCP |
| --- | --- | --- |
| Reliability (16%) | 63 | 80 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 86 | 94 |
| Agent ergonomics (13%) | 65 | 82 |
| Security & auth (14%) | 58 | 60 |
| Payments & pricing (10%) | 30 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 79 | 77 |
| Transparency & trust (7%) | 71 | 71 |