A stock voice only needs to sound good. A cloned voice must sound like one specific person. That is a harder test, and the 7 Voice cloning providers here handle it very differently. We recorded one 10-second reference clip and cloned it on every platform. The results sit side by side below, unlabeled, so you can judge before seeing names. We then compare 4 axes that decide deployments: reference audio needed, consent verification, commercial license, and languages. How the 10-second test works The reference is 10 seconds of one speaker in a quiet room, saved as WAV. Every platform reads the same 2 sentences. One is conversational; the other packs numbers and a proper name. We use each vendor’s instant cloning path with default settings. Two vendors bend the rule. Hume documents 15 seconds as its floor, so its clone uses the same speaker extended to 15 seconds. ElevenLabs recommends 1 to 2 minutes for Instant Voice Cloning, so its 10-second clone runs below vendor guidance. Comparison at a glance Provider Reference audio (instant / pro) Consent verification Commercial license from Languages List price per 1M chars ElevenLabs 1 to 2 min recommended / 30 min minimum Rights attestation for IVC; Voice Captcha for PVC Starter, $6/mo 70+ (Eleven v3) $50 (Flash) to $100 (v3) Cartesia 10 s, up to 60 s on Sonic 3.6+ / 30 min Permission required by terms Pro, $5/mo 44 About $37 to $50 Inworld 3 to 30 s / 10 min minimum (beta, English only) Rights confirmation Free On-Demand tier 200+ languages and locales $12.50 to $25 (TTS-2) Gradium 10 s / 30 min, 2 h recommended Owner consent requi
Source: MarkTechPost