Commercial use and redistribution clarification for Pocket-TTS ONNX
Hi Kevin,
My name is Frank Lin. I am developing WarmTalk, a commercial Flutter mobile application that performs Pocket-TTS voice synthesis locally on the user’s device.
I would like to use the English english_2026-04 bundle from KevinAHM/pocket-tts-onnx, including:
bundle.json
tokenizer.model
bos_before_voice.npy
flow_lm_main.onnx
flow_lm_flow.onnx
mimi_decoder.onnx
mimi_encoder.onnx
text_conditioner.onnx
Could you please confirm the following?
These ONNX files may be embedded in or downloaded by a commercial mobile application.
They may be redistributed to users through the Apple App Store and Google Play.
They may be used for on-device voice cloning and speech generation, subject to Kyutai’s license, lawful voice consent, and prohibited-use requirements.
I may modify, optimize, or quantize the files for mobile-device compatibility.
Please confirm the applicable licenses for:
the exported ONNX model files;
your export/runtime code; and
the tokenizer, metadata, and other files included in the bundle.
Please identify the attribution and license notices that WarmTalk must provide.
Please identify any included file that you do not own or are not authorized to license or redistribute.
I understand that Kyutai owns the original Pocket-TTS model and that I must separately comply with Kyutai’s applicable license and conditions. I am requesting clarification regarding your ONNX exports, related code, and bundle files.
If permitted, I plan to provide attribution substantially as follows:
“Pocket-TTS model © Kyutai. ONNX export by KevinAHM. Used and modified under the applicable CC BY 4.0 and/or MIT/Apache 2.0 licenses.”
Please correct that attribution if necessary.
Thank you very much for your work and assistance.
Best regards,
Frank Lin
Developer of WarmTalk
All code is Apache 2.0 and model weights are CC-BY-4.0. What you may do with them is defined by these licenses. If confused by my licensing, you may download many of these original files (the tokenizer for example) from Kyutai's repository. Any questions can then be directed to them as the license holders.
Your attribution appears fine but I am not a lawyer.
You may also export your own onnx using the code here: https://github.com/KevinAHM/pocket-tts-onnx-export
There is a new English checkpoint Kyutai has released that is not covered by this current export.
Thank you, Kevin. This clearly answers my questions. I will comply with Apache 2.0 for the code and CC BY 4.0 for the model weights, preserve the applicable notices, identify modifications, and provide attribution to Kyutai and your ONNX export. I appreciate your help.