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ACE-Step vs Jen: catalog facts
ACE-Step	Jen
Free Free and open source under the MIT license.	Freemium Generations are paid for with credits; plan details are not given on the homepage.
Windows, macOS, Linux, Command line	Web
Runs locally across Mac, AMD, Intel and CUDA hardware Actively maintained with a 2026 model-series update	Generates tracks from a text prompt in seconds WAV output option
Local generation quality and speed depend heavily on the hardware used Best results likely still require a capable GPU despite broader hardware support	Credit-based usage, with pricing not explained on the homepage Runs only as an online service
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	Needs internet
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 2, 2026

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