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license: mit
language:
- en
tags:
- text-to-speech
- chatterbox
- lora
- onnx
base_model: ResembleAI/chatterbox
---
# Chatterbox-Turbo with LoRA input ports
Re-exported Chatterbox-Turbo ONNX with 192 optional LoRA adapter input
ports added to the language_model graph. Enables per-speaker fine-tuning
via ORT's `Ort::LoraAdapter` API.
## Files
- `language_model_q4f16.onnx` — graph file (~277 KB)
- `language_model_q4f16.onnx_data` — external weights file (~700 MB,
fp32 — quantization to q4f16 is a TODO)
## Modifications vs upstream
- 96 additive LoRA branches (`MatMul → MatMul → Add`) spliced into each
GPT2 block's c_attn / c_proj / c_fc / mlp.c_proj projections
- 192 named optional graph inputs: `lora.layers.{N}.{parent}_{child}.{A|B}`
- Zero-sized default initializers so the un-adapted graph runs identically
to the original
## Original work
Based on [ResembleAI/chatterbox](https://huggingface.co/ResembleAI/chatterbox)
by Resemble AI, licensed under MIT. This derivative is also MIT-licensed.
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