Sonauto

Sonauto is an AI music editor that turns text prompts, custom or auto-generated lyrics, or hummed melodies into full songs in seconds, with stem export for vocals, drums, bass, and instrumentals. It has often run entirely free with no credit system, though performance can slow at peak times, and it has published credit-based Starter, Pro, and Scale tiers. It is a small, early-stage, Y Combinator-backed San Francisco startup, best for hobbyists and creators who want fast, flexible generation.

Sonauto is an AI music creation tool that generates full songs from simple text prompts, custom or auto-generated lyrics, or even a hummed melody. It aims for fast, high-quality output and includes practical production features such as exporting individual stems (vocals, drums, bass, and instrumentals) so creators can take tracks into post-production. A notable aspect of Sonauto's approach has been generous access: the platform has run largely free with no credit system for stretches, which makes it easy to experiment, though performance can slow during peak demand. It has also published a credit-based pricing structure with Starter, Pro, and Scale tiers priced by monthly credit bundles, so the free availability may change as the product matures. Sonauto is a small, early-stage startup out of San Francisco, backed by Y Combinator. Its combination of free access, prompt-and-lyrics flexibility, and stem export makes it appealing for hobbyists and creators who want to move quickly, while its youth and evolving pricing mean buyers should verify current availability, limits, and licensing before relying on it for anything important.