---
license: other
license_name: fish-audio-community-license
license_link: LICENSE
pipeline_tag: text-to-speech
library_name: comfyui
base_model: fishaudio/drama-3
base_model_relation: quantized
tags:
  - comfyui
  - drama-3
  - int8
  - convrot
  - text-to-speech
---

# Drama 3 — INT8 ConvRot for ComfyUI

**Built with Fish Audio.**

An unofficial, ComfyUI-compatible conversion of [Fish Audio Drama 3](https://huggingface.co/fishaudio/drama-3).
Use it with [ComfyUI-Drama3](https://github.com/PedroMarinhoDev/ComfyUI-Drama3).
This is a converted checkpoint, not a fine-tune, and is not an official Fish Audio release.

| File | ComfyUI folder | Contents |
|---|---|---|
| `drama3_int8convrot.safetensors` | `models/diffusion_models` | INT8 ConvRot routed experts and supported dense linears; 36.34 GB |
| `drama3_codec.safetensors` | `models/vae` | Required audio codec; 1.57 GB |

Embeddings, heads, norms, routing, and selected small projections retain their original precision.
The original block-FP8 expert weights were dequantized before INT8 ConvRot quantization.

## Use

1. Install ComfyUI v0.40.0 or newer and the ComfyUI-Drama3 custom nodes.
2. Download the two files into the folders above, then restart ComfyUI.
3. Open a workflow from the node pack's `example_workflows` folder.
4. In **Load Drama 3**, select `drama3_int8convrot.safetensors` and set **experts** to **in RAM**.
5. In **Load Drama 3 Codec**, select `drama3_codec.safetensors`.
6. For voice cloning, supply a clean reference recording and its exact transcript.

The full model does not fit into 16 GB VRAM. Use experts in RAM and a VRAM expert cache.
Japanese speech generation was tested with ComfyUI v0.40.0, an RTX 5060 Ti 16 GB,
64 GB system RAM, a 4 GiB expert cache, and `--disable-pinned-memory`.
An available amount of system RAM comparable to the model size is needed; loading can use more.
No-reference generation can stop early; a reference voice generally gives more reliable results.

## Conversion

Source checkpoint revision: `e0a9218aa48888270f06ef1ed9ea67622c0e17d2`.

Converted using `ComfyUI-Drama3` revision `0465897ec86c0f655af12bf8ae698afd89a58723`:

```sh
python tools/convert.py model /path/to/drama-3 drama3_int8convrot.safetensors --format int8_convrot --dense int8
python tools/convert.py codec /path/to/drama-3/codec.pth drama3_codec.safetensors
```

## License

The weights and derived materials remain subject to the [Fish Audio Community License](LICENSE).
See [Notice](Notice) for attribution and modifications. Conversion does not remove the original license conditions.
The custom-node implementation has its own licenses; consult its repository.