Open TTS Leaderboard launches objective, scalable evaluation for multilingual TTS and voice cloning
The Open TTS Leaderboard is an open evaluation platform that ranks TTS models using objective metrics—intelligibility (WER/CER via Qwen3 ASR), speaker similarity (cosine SIM via WavLM), and speed (RTFx and TTFA measured on H200/CPU)—across Seed TTS Eval and CV3 Eval datasets. It supports multilingual and voice-cloning comparisons, provides Pareto visualizations and a Listen tab to audition outputs, and aims to speed evaluation from weeks to hours.