BlueTTS offers a lightweight, open-source text-to-speech model that achieves 1500× real-time speed on GPU while supporting five languages in a compact 80MB package.

BlueTTS supports multilingual speech synthesis across English, Hebrew, Russian, Spanish, and French, including mixed-language sentences

The model runs at up to 1500× real-time on GPU and maintains real-time performance on CPU while maintaining a small 80MB footprint

Available completely open-source with full training pipeline accessible, and the creator welcomes contributions like llama.cpp support