# Four labs lead open-weight TTS across nine language leaderboards

Artificial Analysis finds no single open-weight text-to-speech model ahead on all nine new language leaderboards. Leadership is split among Higgs Audio V3 TTS, OpenAudio S1 Mini, Voxtral TTS and Breeze TTS 2.

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Source: Artificial Analysis · Published 9/22/2026, 13:18:21

Artificial Analysis reports that no single open-weight text-to-speech model leads all nine new language leaderboards, with four labs ahead in different languages.

Boson AI’s Higgs Audio V3 TTS is the top open-weight model in Hindi, German, Portuguese and Vietnamese. FishAudio’s OpenAudio S1 Mini leads the open-weight field in Japanese, Spanish and Arabic. MistralAI’s Voxtral TTS leads in French, and BreezeBlue’s Breeze TTS 2 leads in Mandarin.

Open-weight coverage is thinner than the full public field: each language leaderboard ranks 2 to 6 open-weight models, compared with 15 to 24 public models overall.

Tags: Text to speech, Open weights, Benchmarks, Multilingual, Artificial Analysis

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