amcic/supertonic-3-fp16

Supertonic-3 fp16 ONNX (availability mirror)

This repository redistributes existing model weights unchanged. It exists so that a published mobile application has a distribution endpoint whose availability we control. No model was trained, fine-tuned, or modified here.

Provenance

Original model	Supertone/supertonic-3 — Copyright (c) 2026 Supertone Inc.
fp16 ONNX conversion	Kyumdroid/supertonic-3-quant
This repository	Byte-identical copy of the above conversion. No files were altered.

The fp16 conversion was performed by Kyumdroid using onnxruntime.transformers.float16.convert_float_to_float16 with keep_io_types=True (fp32 I/O for SDK compatibility) and op_block_list=['Cast']. See the upstream conversion notes for detail.

Every file in this repository has been verified by SHA-256 against the upstream conversion repository. All 16 files match.

Layout

fp16/onnx/
    text_encoder.onnx
    duration_predictor.onnx
    vector_estimator.onnx
    vocoder.onnx
    tts.json
    unicode_indexer.json

voice_styles/
    {F1,F2,F3,F4,F5,M1,M2,M3,M4,M5}.json

voice_styles/ is unchanged from upstream.

License

BigScience Open RAIL-M, inherited from Supertone/supertonic-3. The full license text is included in this repository: LICENSE.

Copyright (c) 2026 Supertone Inc.

Use restrictions (notice to subsequent users)

The Open RAIL-M license carries use-based restrictions set out in Attachment A of the LICENSE. These restrictions apply to you, and you must pass them on to anyone you distribute the model or its derivatives to. In summary, the model may not be used:

• to violate any applicable law, or to exploit or harm minors;
• to generate or disseminate verifiably false information with intent to harm;
• to generate or disseminate personally identifiable information without consent;
• to defame, disparage, harass, or impersonate individuals;
• for fully automated decision-making that adversely affects legal rights;
• to discriminate against individuals or groups based on protected characteristics;
• to provide medical advice or interpret medical results;
• for law enforcement, immigration, or asylum processes covered by the license.

Read Attachment A of the LICENSE for the authoritative and complete list. The summary above is not a substitute for it.