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🗣️ Nari Labs Dia Open-Source TTS Model Is Reshaping AI


NewBits Digest image showing the NewBits logo in the top left and the NewBits robot in the center, used for a featured story on how Nari Labs Open-Source TTS Model Is Reshaping AI and advancing open-source voice technology.

Korean startup Nari Labs just dropped Dia, an open-source text-to-speech (TTS) model that claims to beat leading commercial offerings like ElevenLabs and Sesame — all built by two undergraduate students with zero funding.


The highlights:


  • Dia is a 1.6B parameter model supporting emotional tones, multiple speaker tags, and nonverbal cues like laughter, coughing, and even screaming.


  • The project was inspired by Google’s NotebookLM and powered using Google’s TPU Research Cloud for compute access.


  • Side-by-side tests show Dia outperforming ElevenLabs Studio and Sesame CSM-1B in timing, expressiveness, and handling nonverbal scripts.


  • Founder Toby Kim says Nari Labs plans to launch a consumer app aimed at social content creation and remixing powered by Dia.


Why Nari Labs Dia Open-Source TTS Model Is Reshaping AI


The launch of Dia by Nari Labs marks a major shift in how open-source innovation is challenging industry leaders.


Built with limited resources yet delivering world-class results, Dia shows that bold builders — even without massive funding — can redefine the future of voice AI.


The bottom line:


If you’ve ever thought about building something with AI — there’s never been a better time to start.



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