Cartesia vs Resemble AI vs Fish Audio vs Vapi
A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.
Cartesia
Ultra-low-latency voice AI on Mamba SSMs
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Resemble AI
Voice cloning and audio AI platform
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Fish Audio
TTS and voice cloning with #1 leaderboard ranks and 10-second clones
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Vapi
Voice AI infrastructure for developers
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| RECATOOLS Score | 7.6 / 10 | 7.4 / 10 | 7.4 / 10 | 7.3 / 10 |
| Capability | ||||
| Value for money | ||||
| Ease of use | ||||
| ASEAN readiness | ||||
| API quality | ||||
| Pricing | Paid | Paid | Freemium | Paid |
| Free tier | — | — | — | — |
| Paid from | — | — | — | — |
| Has API | ✓ | ✓ | ✓ | ✓ |
| Open source | ✗ | ✗ | ✓ | ✗ |
| Free to use | ✗ | ✗ | ✓ | ✗ |
| Users | — | — | — | — |
| Founded | 2023 | 2019 | — | 2023 |
| Maker | — | — | — | — |
| Verdict | Cartesia's Sonic models are a leading choice for real-time text-to-speech, prized for very low latency and natural prosody, making them well-suited to voice agents and interactive applications. The API is developer-frien... |
Resemble AI is a developer-focused voice platform combining high-quality voice cloning and TTS with real-time/low-latency synthesis, emotion control, localisation and, distinctively, deepfake detection and audio watermar... |
Fish Audio's credibility comes from its open-source lineage rather than marketing copy: the underlying Fish-Speech models on GitHub have over 21,000 stars, and the S1 model topped the TTS-Arena2 leaderboard while S2 Pro... |
Vapi is a developer-focused platform for building real-time voice AI agents, orchestrating speech-to-text, an LLM and text-to-speech into low-latency phone and web calls. Its appeal is flexibility: you bring your own mod... |
| Full review → | Full review → | Full review → | Full review → |
Comparisons cover up to 4 tools. Scores are RECATOOLS editorial assessments; verify current pricing on each vendor's site.