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Stable Audio Open Small - TensorFlow Lite + Runner

Complete package for running Stability AI's stable-audio-open-small model on edge devices.

Powered by Stability AI

conditioners_float32.tflite - T5 text encoder model
dit_model.tflite - Diffusion transformer model
autoencoder_model.tflite - Audio decoder model
spiece.model - SentencePiece tokenizer model
audiogen.exe - Inference runner binary

Quick Start

./audiogen.exe ./ "ambient forest sounds" 4 42

Arguments: <models_path> <prompt> <num_threads> <seed>

The runner will generate an output.wav file with 10 seconds of stereo audio at 44.1kHz.

Model Description

This is a converted version of the original stable-audio-open-small model by Stability AI, split into three optimized TensorFlow Lite models for mobile and edge deployment. Includes a ready-to-use C++ inference runner.

Architecture:

Text Encoder: T5-based conditioner for prompt processing
Diffusion Model: DiT (Diffusion Transformer) for latent generation
Audio Decoder: Autoencoder for converting latents to audio

Components & Licenses

Component	License	Copyright
AI Models (*.tflite)	Stability AI Community License	Stability AI Ltd.
Tokenizer (spiece.model)	Apache 2.0	Google
Runner Binary (audiogen.exe)	Apache 2.0	ARM Limited

Usage Rights

✅ Research & Non-Commercial: Free to use
✅ Commercial Use: Free for organizations with <$1M annual revenue (registration required at stability.ai)
⚠️ Commercial Use: License terminates if annual revenue exceeds $1M (enterprise license required)

License

This repository is primarily governed by the Stability AI Community License Agreement due to the AI models.

The SentencePiece tokenizer and ARM inference code components are under Apache 2.0, but the overall package follows the most restrictive license (Stability AI Community License).

See the complete license terms: Stability AI Community License

Attribution

Original Model: stable-audio-open-small by Stability AI
Conversion: TensorFlow Lite conversion by InnerMost47
Runner: Based on ARM's TensorFlow Lite inference code

Disclaimer

This package is provided "AS IS" without warranties. The TensorFlow Lite conversion may affect model performance. Please refer to the original model documentation for detailed specifications.

innermost47
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stable-audio-open-small-tflite