It’s AI manipulation of samples which explains both the subscription and being browser based. Access to the massive data centers required for that much horsepower is not free. Even if you had a $32,000 NVIDIA tower or a quartet of Mac Studios linked together via USB 4.2 cables at 2/3 the price, you still couldn’t render it as quickly.

Although it’s been possible to link multiple Macs to combine them as one over 10GB Ethernet since 2017 (Apple showed 20 Minis crunching an animation file at the 2018 WWDC), macOS 26.2 Tahoe has introduced new protocols for doing this over USB 4.2/TB5 making it much more efficient rivaling the NVIDIA tower. Even still, the studios are now crunching these massive files over the internet.

No one is expecting Celemony to ever release this as a stand-alone product.

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Waiting for my free version.

That could happen. Celemony could certainly follow the same model as other browser based AI companies by releasing a “free” version and charging for usage by making you buy “credits”. Many companies have gone to this model.

One AI stand-alone that I own is ACE Studio. Rendering a simple 3 minute, acapella 4-part choral demo can take well over an hour on my Studio M2 Ultra with 192GB Integrated RAM. Since these are demos only, my clients can forgive the fact that the “singers” don’t pronounce English or Latin as well as I would like. Fortunately, it wasn’t all that expensive.

BIAB 2025 Audiophile Mac
24Core/60CoreGPU M2 MacStudioUltra/8TB/192GB Sequoia, M1 MBAir, 2012 MBP
Digital Performer11, LogicPro, Finale27/Dorico/Encore/SmartScorePro64/Notion6 /Overture5