#282·dia

Old Version of Dia Model

Author: anlcakmak19Created Oct 18, 2025Updated Nov 16, 2025

Hi everyone, I have a question I couldn’t quite figure out.

There are two Dia models on Hugging Face:

Older: https://huggingface.co/nari-labs/Dia-1.6B New: https://huggingface.co/nari-labs/Dia-1.6B-0626

From what I understand, the first one is the older version. There are community fine-tuning scripts and FastAPI server implementations based on it. However, that model is slower and doesn’t support batch inference. Fine tuning scripts: https://github.com/stlohrey/dia-finetuning TTS server: https://github.com/devnen/Dia-TTS-Server/tree/main

The newer model seems to have a different config.json format, and I’m having trouble updating the old code to make it compatible — I keep getting errors. When I try to run inference with an older fine-tuned checkpoint using the new config files, it generates audio but then continues with silence until it reaches max_new_tokens.

How can I convert my old model to be compatible with the new version? Or how can I run inference on my fine-tuned model using the new Dia version?