Cartesia Sonic
Sonic is the fastest human-like voice API.
ElevenLabs
Create natural AI voices instantly in any language
Updated February 2026
| Cartesia Sonic | ElevenLabs | |
|---|---|---|
| Rating | 5.0★ | 4.9★ |
| Reviews | 15 | 153 |
| Pros | 4 | 18 |
| FactScore™ | 60.2 | 107.2 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in Cartesia Sonic — Pros
Real-time voice experiences Ease of use Diverse voice libraryBoth tools — Pros
Fast performanceOnly in ElevenLabs — Pros
High-quality voice generation Realistic voice cloning Text-to-speech technology Multilingual support API integration User-friendly interface Voice cloning Extensive voice library Competitive pricing Voice modulation Free tier Voice customization AI features Easy to use Voice changer Voice replication tool Voice-first assistantOnly in Cartesia Sonic — Cons
—Both tools — Cons
—Only in ElevenLabs — Cons
Voice cloning issues with numbers Competitive pricing Inconsistent voice output Limited accent options Poor Chinese language support Account blocking issues Extensive voice library Fast performance Intergation with loomDetails
| Cartesia Sonic | ElevenLabs | |
|---|---|---|
| Categories | Podcasting Tools, AI Voice Agents, Text-to-Speech Software | AI Voice Agents, Text-to-Speech Software |
| Platforms | Web | Web · iOS · Android |
| Became Popular | May 29, 2024 | June 7, 2023 |
| Website | cartesia.ai | try.elevenlabs.io |
Who Should Pick Which?
Choose Cartesia Sonic if...
- Real-time voice experiences
- Ease of use
- Diverse voice library
Choose ElevenLabs if...
- High-quality voice generation
- Realistic voice cloning
- Text-to-speech technology
With a FactScore™ of 60.2 vs 107.2, ElevenLabs leads in community reception. Cartesia Sonic uniquely offers Real-time voice experiences and Ease of use, while ElevenLabs stands out for High-quality voice generation and Realistic voice cloning.
What Users Say
Cartesia Sonic
Cartesia is amazing! They have enabled us to reduce system latency by hundreds of milliseconds – critical to making our conversations feel natural. Their streaming in, streaming out interface, pyth...
Cartesia is a game-changer for us. They provide high-quality voice APIs which are extremely fast and budget-friendly.
Fast, high-quality voice models in multiple languages. Great team and great product velocity.
ElevenLabs
The voice quality of ElevenLabs is exceptionally professional and high-end, quickly enhancing our efficiency in producing brand and product videos. Since our team is product-focused, the video cont...
We chose ElevenLabs because of how natural and expressive the voices are. Cloning a voice takes just a few samples, and the output is incredibly human. It allowed us to give each assistant a unique...
As part of the ElevenLabs Startup Grant program, we were able to convert most of our historical markers and stories into high-quality audio. They have a great voice selection - although they are a ...
Related Comparisons
Frequently Asked Questions
Which is better, Cartesia Sonic or ElevenLabs?
Based on FactScore™, ElevenLabs leads with a score of 107.2 vs 60.2. ElevenLabs has a higher rating of 4.9★ compared to 5.0★.
What are the pros of Cartesia Sonic compared to ElevenLabs?
Cartesia Sonic uniquely offers: Real-time voice experiences, Ease of use, Diverse voice library.
What are the pros of ElevenLabs compared to Cartesia Sonic?
ElevenLabs uniquely offers: High-quality voice generation, Realistic voice cloning, Text-to-speech technology, Multilingual support, API integration.
Is Cartesia Sonic better rated than ElevenLabs?
Cartesia Sonic is rated 5.0★ from 15 reviews. ElevenLabs is rated 4.9★ from 153 reviews.
What is the FactScore™ of Cartesia Sonic and ElevenLabs?
FactScore™ weighs rating and review volume together. Cartesia Sonic scores 60.2 and ElevenLabs scores 107.2.
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