The Voice-Cloning Scorecard
8 voice engines evaluated, 5 tested hands-on — which one to clone your voice with, and what it costs.
Updated: 2026-06-19 · Distilled from the full lab report — no signup required to read the article.
What's inside the one-page scorecard
- All 5 hands-on engines side by side: type, minimum reference audio, and the verdict
- Why Cartesia beat ElevenLabs in blind A/B testing — and when ElevenLabs still wins
- The best free option (LMNT, 5-second clip) and the best open-source path (Coqui XTTS)
- The multilingual trap: only 2 of the set handled German cleanly
The bottom line: Cartesia for quality, LMNT for a free start, Coqui XTTS for open-source control. StyleTTS2, OpenAI and Deepgram were evaluated but not bench-tested. The real lesson: the ecosystem around the voice — lip-sync, avatars, distribution — matters more than the raw engine.
Frequently asked questions
Which voice cloning engine is best in 2026?
For maximum naturalness, Cartesia Pro won our blind A/B test (it fine-tunes on ~54 minutes of studio audio). For a free start, LMNT clones from a 5-second clip with 15,000 characters/month free. For open-source control, Coqui XTTS needs just 5 seconds and runs locally.
Can you clone a voice for free?
Yes. LMNT offers the best free tier — unlimited clones from a 5-second sample, 15,000 characters per month, no credit card. Open-source Coqui XTTS is also free if you can run it yourself.
How much audio do you need to clone your voice?
As little as 5 seconds for zero-shot engines (LMNT, Coqui XTTS). For the highest-fidelity result, Cartesia Pro fine-tunes on roughly 54 minutes of clean studio audio.