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ACE-Step vs AIVA: catalog facts
ACE-Step	AIVA
Free Free and open source under the MIT license.	Freemium Free plan for non-commercial use with three downloads a month; paid plans start at 11…
Windows, macOS, Linux, Command line	Web
Runs locally across Mac, AMD, Intel and CUDA hardware Actively maintained with a 2026 model-series update	More than 250 generation styles Custom style models from uploaded audio or MIDI
Local generation quality and speed depend heavily on the hardware used Best results likely still require a capable GPU despite broader hardware support	Free plan is non-commercial and AIVA keeps the copyright Full ownership requires the Pro plan
Downloadable app, Self-hosted	Web application
Open source	Closed source
License: MIT	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.