Beyond Suno, Udio, Donna and ElevenMusic: Stable Audio, AIVA and Mureka in different workflows
Not every AI music tool is trying to be the same product. Stable Audio emphasizes generative audio models and open/self-hosted possibilities, AIVA has a composition-and-licensing model, and Mureka combines full-song generation with editing and paid-output ownership terms.
Choose by workflow. A tool built for full songs, an open audio model and a composition/licensing platform solve different problems even when all three are called “AI music.”
Stable Audio 3.0: model-centric and open-weight options
Stability AI says Stable Audio 3.0 is trained on fully licensed data. Small SFX, Small and Medium are open-weight; Large is offered through the API and enterprise self-hosting. The May 2026 release gives Small up to two minutes and Medium/Large more than six minutes, with Medium listed at up to 6:20. Commercial use depends on the Stability license: the Community License covers creators and businesses below its stated revenue threshold, while larger organizations need enterprise terms.
AIVA: plan-based composition licensing
AIVA’s legal pages describe different licenses depending on the plan: non-commercial, limited commercial and full copyright. Its public pricing positions the free plan as non-commercial and the Standard plan as limited monetization on selected social platforms. This is a different model from “everything I generate is automatically mine on every plan.”
Mureka: full-song workflow with a paid/free rights split
Mureka’s current terms say users who buy credits or subscribe to a paid tier own the generated output, while free-tier outputs remain owned by Mureka and are licensed for lawful internal, non-commercial use with attribution. Its product materials describe full-song generation plus editing, Extend, stems, MIDI and voice workflows. Mureka’s August 28, 2026 V9.5 update says the current model focuses on more natural structure, arrangement space, vocals and prompt control.
What to compare before you switch tools
Do not compare only audio demos. Check export path, editing depth, reference-upload rules, current rights terms, language support, stem/MIDI needs, API access and whether the tool is designed for songs, production assets or composition.
Prompt limits that matter in Stable Audio and Mureka
Stability AI's current Stable Audio 3.0 API accepts audio prompts up to 10,000 characters and exposes variable duration up to 380 seconds. Mureka's song API documents 1,024 characters for the music prompt and 5,000 for lyrics; its current model list includes Mureka 9.5. These are API limits, not a reason to fill every available character.
Stable Audio, AIVA and Mureka are relevant for different reasons. Compare workflow and licensing structure before comparing “quality” in the abstract.