Soprano, an 80M-Parameter On-Device Text-to-Speech Model, Gains Traction With Sub-1GB Memory and Real-Time Speeds

Soprano, an ultra-lightweight open-source text-to-speech (TTS) model built by an independent developer, is drawing developer attention for running entirely on-device while claiming up to 20x real-time synthesis on CPU and 2,000x on GPU, all within under 1GB of memory. The project, released under the permissive Apache-2.0 license, positions itself as a fully local alternative to cloud-based speech services.