Cartesia vs Retell AI
A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.
Cartesia
Low-latency speech models built on state space models, for voice agent...
Visit
|
Retell AI
Build AI agents that answer and place real phone calls
Visit
|
|
|---|---|---|
| RECATOOLS Score | 7.6 / 10 | 7.2 / 10 |
| Capability | ||
| Value for money | ||
| Ease of use | ||
| ASEAN readiness | ||
| API quality | ||
| Pricing | Freemium | Usage_based |
| Free tier | Free: 20K credits a month (about 27 minutes of Sonic speech) plus $1 a month of prepaid voice-agent usage | — |
| Paid from | $5/month (Pro: 100K credits, commercial licence, instant voice cloning) | $0.07-0.31 per minute all-in for voice agents, pay as you go |
| Has API | ✓ | ✓ |
| Open source | ✗ | ✗ |
| Free to use | ✓ | ✗ |
| Users | — | — |
| Founded | 2024 | 2024 |
| Maker | — | — |
| Verdict | Cartesia is built for real-time voice: Sonic-3.6 starts speaking in under 90 milliseconds across 44 languages, Ink-2 transcribes with built-in turn detection, and Managed Agents ties them into phone agents. Its leaderboa... |
Retell is one of the more complete toolkits for phone agents: low-latency conversation, human transfer, booking, batch calling, testing and QA are all on the platform, with a choice of models and your own telephony if yo... |
| Directory listing → | Full review → |
← Back to AI Directory
Comparisons cover up to 4 tools. Scores are RECATOOLS editorial assessments; verify current pricing on each vendor's site.