Model reference · open weights
pipertts_pt-BR_dii is an open-weight audio or speech model from OpenVoiceOS. AxForge deploys and operates it for you on dedicated EU-owned hardware — with the licence handled where one is required.
Available as managed deployment — configured and operated for you on dedicated EU hardware, quoted per deployment.
What it is
| Released by | OpenVoiceOS |
|---|---|
| Type | Audio & music |
| Task | Text→speech |
| Runs with | piper |
| Based on | OpenVoiceOS/pipertts_pt-PT_dii |
| Released | 2025-06-28 |
| Popularity | 935 downloads / month |
| Licence | Commercial licence needed |
About
This is a text-to-speech voice model for Brazilian Portuguese. The voice is Dii, a female voice. It uses the Piper VITS architecture, exported to ONNX for CPU inference. It was fine-tuned from the base voice pipertts_pt-PT_dii, the closest available language for this voice.
This is a Piper VITS voice, in ONNX format. Use it with any Piper-compatible runtime, or with ovos-tts-plugin-piper in OVOS:
{
"tts": {
"module": "ovos-tts-plugin-piper",
"ovos-tts-plugin-piper": {
"voice": "OpenVoiceOS/pipertts_pt-BR_dii"
}
}
}
Command line, with the piper package installed:
echo "Bom dia, como você está?" | piper --model OpenVoiceOS/pipertts_pt-BR_dii --output_file output.wav
Trained on TigreGotico/tts-train-synthetic-dii_pt-BR.
Miro and Dii are the recorded voices of two real people. The voices, the training data, and this model belong to TigreGotico Lda (https://tigregotico.pt).
This model is licensed under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 (CC BY-NC-ND 4.0). You may use and share this model for non-commercial purposes only. Give attribution to TigreGotico Lda. Do not modify, adapt, or build new models from this model. Do not use the voice identity to create derivative voices.
For commercial use, for derivative models, or for any other license of the Miro or Dii voice identity, contact TigreGotico Lda.
The training checkpoint is kept out of this repository so a download is the model and not the training state. It is available on request.
From the published model card. Full card on the HuggingFace links in the sidebar.
How it works
Using it via the API
Once AxForge deploys pipertts-pt-br-dii for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (pipertts-pt-br-dii below is illustrative; you get the exact model name on deployment.)
$ curl -sS https://api.axforge.ai/v1/audio/transcriptions \ -H "Authorization: Bearer $AXFORGE_API_KEY" \ -F model="pipertts-pt-br-dii" -F file=@audio.mp3
Create an account — your API key is available in the console. 3M free tokens every 30 days with every new account.