younghan-meta/Supertonic-ExecuTorch-MLX

Supertonic 3 ExecuTorch MLX Export

This repository contains a ready-to-run ExecuTorch PTE export of Supertone/supertonic-3 for Apple silicon Macs using the ExecuTorch MLX backend.

Artifact

File	Format	Size	SHA-256
model.pte	ExecuTorch PTE	198,747,136 bytes	8aa17b185db9c4b18c8bebd49414337342a0499985e8218d6c30f618c8227432

The export was prepared from:

• Source model: Supertone/supertonic-3
• Source revision: 3cadd1ee6394adea1bd021217a0e650ede09a323
• ExecuTorch export revision: 20ad5ee43ff53804030899d621590af3daadda53
• Target platform: macOS arm64
• Backend: ExecuTorch MLX

manifest.json contains the same provenance and integrity metadata in a machine-readable form.

Runtime requirements

This repository intentionally does not redistribute:

• the native supertonic_runner executable;
• mlx.metallib;
• the original Supertonic configuration and text-processing assets;
• voice-style JSON files.

Build the native runner from the pinned ExecuTorch source and obtain the model assets and a voice style from the pinned upstream Supertonic repository. The Meta Model Cookbook realtime voice-agent recipe automates the public artifact download and integrity checks while keeping the native runner local.

License and use restrictions

This PTE is a converted/modified form of the Supertonic model. It remains subject to the BigScience Open RAIL-M License, including the use-based restrictions in Attachment A. Read LICENSE before downloading, using, or redistributing the model.

The conversion changes the serialization and execution format for the ExecuTorch MLX runtime; it does not retrain or fine-tune the model. See NOTICE.md for attribution and modification details.

Verification

shasum -a 256 model.pte

Expected result:

8aa17b185db9c4b18c8bebd49414337342a0499985e8218d6c30f618c8227432  model.pte

For reproducible applications, download this artifact by an immutable Hugging Face repository commit rather than by the mutable main branch, then verify both the exact byte size and SHA-256 above.