Dia, an open-weights TTS model for generating realistic dialogue
A TTS model capable of generating ultra-realistic dialogue in one pass. - nari-labs/dia
Dia, an open-weights TTS model for generating realistic dialogue launched on April 21, 2025 with 652 votes, #13 of 7,818 launches that month and more than 99% of that year's launches. The site was still online in September 2026, 1 year on.
In plain words
Dia is an open-source text-to-speech model designed to generate realistic dialogue. The model creates natural-sounding speech from text input and is available for developers and researchers who want to build conversational applications. Its open-weights design means users can access, modify, and deploy the underlying model themselves, making it suitable for those seeking transparent and customizable speech synthesis tools without proprietary restrictions.
written from the facts on this page · September 2026
From the sources
Dia is a 1.6B parameter text to speech model created by Nari Labs. UPDATE 🤗(06/27) : Dia is now available through Hugging Face Transformers ! UPDATE 🚀(11/19) : Dia2 is released on Github and HuggingFace link ! Dia directly generates highly realistic dialogue from a transcript . You can condition the output on audio, enabling emotion and tone control. The model can also produce nonverbal communications like laughter, coughing, clearing throat, etc. To accelerate research, we are providing access to pretrained model checkpoints and inference code. The model weights are hosted on Hugging Face . The model only supports English generation at the moment. We also provide a demo page comparing…from github.com
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