Open-weight TTS splits by language as four labs lead different tongues
Across nine new languages no single open-weight TTS model dominates: Boson AI, Fish Audio, Mistral and BreezeBlue each lead in some languages, and open-weight coverage stays far thinner than proprietary models.
Open Weights No single Open Weights model dominates across languages, with four different labs leading depending on the language: ➤ Boson AI's Higgs Audio V3 TTS is the top Open Weights model across 4 of the 9 new languages: Hindi, German, Portuguese and Vietnamese. ➤ @FishAudio OpenAudio S1 Mini leads Open Weights in Japanese, Spanish and Arabic. ➤ @MistralAI Voxtral TTS leads Open Weights in French. ➤ BreezeBlue Breeze TTS 2 leads Open Weights in Mandarin. Open Weights coverage remains much thinner than proprietary models, with just 2 to 6 Open Weights models ranked on each language leaderboard, compared with 15 to 24 public models overall.