MLX Community · First MLX build 8 May 2025

Spark-TTS-0.5B

MLX Audio cc-by-nc-sa-4.0

A 507M parameter text to speech model, with 3 MLX builds, from 6-bit to bf16.

Hugging Face
Parameters
507M
From Hugging Face
Quantisation
bf16
Spark-TTS-0.5B-bf16
Memory needed
4 GB
Estimate, unified memory
Download
1.0 GB
Weights, estimated
Downloads
1.5K
This build, last 30 days
Task
Text to speech
Audio
MLX builds
3
On mlx-community
Devices
Mac
Apple silicon

Memory

Estimated from the size of the weights, plus a fifth for context and working memory and 2 GB for macOS and your apps. Long contexts need more.

Run it

Terminal · Hugging Face CLI
$ pip install -U huggingface_hub
$ hf download mlx-community/Spark-TTS-0.5B-bf16

MLX builds

3 on mlx-community
Click a column to sort. Smallest size and most downloads are highlighted.
Spark-TTS-0.5B-6bit 6-bit 412 MB 3 GB 44
Spark-TTS-0.5B-8bit 8-bit 538 MB 3 GB 105
Spark-TTS-0.5B-bf16 bf16 1.0 GB 4 GB 1.5K

Sizes are estimated from Hugging Face’s parameter counts and the quantisation. Downloads are for the last 30 days.