Breeze TTS 2 Tops Open-Weight TTS Leaderboard, License Draws Criticism

BreezeBlue's Breeze TTS 2 has topped the open-weight TTS category on Artificial Analysis's Provider Voices Speech Arena with an Elo of 1215, 90 points ahead of runner-up Fish Audio S2 Pro. Weights are available on Hugging Face, though some developers have expressed disappointment with the license terms.

Confirmed

• Breeze TTS 2 was released by BreezeBlue with open weights on Hugging Face, ranking first among open-weight TTS models on the Artificial Analysis Provider Voices Speech Arena
• Its Elo score is 1215, 90 points ahead of second-place Fish Audio S2 Pro
• It supports 50+ languages, voice design (voice generation from text), reference cloning, and directional control
• Streaming output is supported, with advertised latency as low as 40ms

Unconfirmed

• Posts only mention developer disappointment with the license; specific license terms and restrictions are not given in the materials

Why it matters

• The open-source TTS landscape has been relatively stable; a 90-point Elo gap over Fish Audio could reshape competition in open speech synthesis
• The combination of low latency and voice design capabilities is practically attractive for real-time voice applications such as voice assistants and agent conversations
• The license controversy suggests adopters should carefully review commercial terms before use

2026-08-26 ~ 2026-08-27 · 5 related posts

• [source] Breeze TTS 2 tops open-weights TTS arena, beating Fish Audio by 90 Elo — ArtificialAnlys · 2026-08-26
• Breeze TTS 2 tops open weights TTS leaderboard on Artificial Analysis — multimodalart · 2026-08-26
• [source] Breeze TTS 2 Tops Voice Arena Amid Licensing Concerns — realmrfakename · 2026-08-27

2 near-duplicate retellings: ArtificialAnlys · multimodalart