Best Voice Cloning APIs in 2026: Speaker Similarity, Consent Checks, and Price per 1M Characters
A hands-on comparison of seven voice cloning APIs covering consent checks, speaker similarity, languages, and pricing per million characters.
The article benchmarks seven voice cloning providers, including ElevenLabs, Cartesia, Inworld, Gradium, Fish Audio, Resemble AI, and Hume, using the same 10-second reference clip. It compares reference audio requirements, consent verification, commercial licensing, language coverage, and prices, which range from roughly $37 to $150 per 1M characters. Hume's Voice Replication Leaderboard shows Fish Audio s2-pro leading speaker similarity at 4.03, while Eleven v3 ranked last among tested vendors at 2.91. Resemble AI differentiates with deepfake detection and PerTh watermarking on all outputs.
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