AssemblyAI 发布首个语音合成模型 AssemblyAI-TTS-1
AssemblyAI 第一次做 TTS 就冲进语音竞技场前十二，速度比 Sonic 3.6 快，价格只要 Eleven v4 的零头，做语音应用可以试试。
AssemblyAI 发布其首个语音合成模型 AssemblyAI-TTS-1。在 Artificial Analysis 的 Provider Voice Arena 中，该模型以 Elo 1,227 分排名 #12，介于 Breeze TTS 2 和 Mistral 的 Voxtral 3 TTS 之间。生成速度达 162 字符/秒，快于 Cartesia 的 Sonic 3.6（148.6）和 Voxtral 3 TTS（112.3）。定价为 $15/1M 字符，显著低于 Eleven v4 的 $80/1M 和 Sonic 3.6 的 $49/1M。在发音鲁棒性基准上得分为 81.7%，排名 #16。
AssemblyAI has launched its first Text to Speech model! AssemblyAI-TTS-1 enters the top 12 in our Provider Voice Arena and the top 10 in Controlled Voice
@AssemblyAI has launched its first Text to Speech model, AssemblyAI-TTS-1! We evaluated its performance across both Speech Arenas and our Pronunciation Robustness benchmark.
Key takeaways:
➤ Text to Speech, Provider Voice: AssemblyAI-TTS-1 scores an Elo of 1,227 across 1,626 arena appearances, ranking #12, just behind Breeze TTS 2 at 1,228 and ahead of Mistral's Voxtral 3 TTS at 1,221 and Inworld's Realtime TTS-2 Flash at 1,218. It ranks #12 in both English (US) and English (UK).
➤ Text to Speech, Controlled Voice: AssemblyAI-TTS-1 scores 1,110 across 1,674 appearances, ranking #10 with the same 8 cloned voices, behind Cartesia's Sonic 3.5 at 1,118 and ahead of Speechify's Simba 3.2 at 1,086. It ranks #6 in Knowledge Sharing.
➤ Pronunciation Robustness: AssemblyAI-TTS-1 scores 81.7% across 2,115 rated clips, ranking #16, behind HeyGen Voice at 83.2% and ahead of Inworld Realtime TTS-2 at 80.7%. It ranks #6 in Preserving Exact Sequences at 81.5%.
➤ Speed: AssemblyAI-TTS-1 generates 162 characters per second, faster than Cartesia's Sonic 3.6 at 148.6 and Mistral's Voxtral 3 TTS at 112.3.
➤ Pricing: AssemblyAI-TTS-1 is priced at $15/1M characters. Of the eleven models ranked above it on Provider Voice, only two cost less: Gemini 3.8 Flash-Lite TTS at $11/1M and Simba 3.2 at $6.6/1M. Eleven v4 is $80/1M and Sonic 3.6 $49/1M.
See more details and listen to samples below ⬇️
