In short
How they differ.
Worked out from the makers' own pages, read Oct 20, 2026. Prices change; check before you pay.
- Only Cartesia has a free plan.
- Cartesia also has a web.
Side by side
The details.
| Cartesia | Gemini Audio | |
|---|---|---|
| Made by | Cartesia · US | Google DeepMind · US |
| What it says it is | “Architecting AI that learns and interacts like humans.” | “Our most advanced audio models push new frontiers with intuitive inputs, natural expressiveness,” |
| Free plan | Yes20K credits/month (~27 minutes TTS); no commercial-use license; no instant voice cloning | Not stated |
| Plans | Pro: $5 a monthStartup: $49 a monthScale: $299 a monthEnterprise: not in US$ | Not shown |
| Runs on | web, API | API |
| Latest update | — | — |
| Its terms | — | “Some of our services allow you to generate original content. Google won't claim ownership over that content.”Who owns what you make · Google Terms of Service |
| Disputes | None on file | None on file |
| Sources | Prices, Oct 20, 2026 · Description · company-reported | Prices, Oct 20, 2026 · Description · company-reported |
More comparisons