
I Blind-Tested 5 AI Mastering Services Against a Human Engineer. Here's What Happened.
I took three Suno -generated tracks — Hard Rock, Country, and Soul — and ran them through five commercial AI mastering services:
Mixing & mastering
AI mastering with a signature engine modeled on Grammy winner Wez Clarke.
Masterchannel, from Norway, is an AI mastering service with two engines: a standard mastering AI and one trained on the workflow of Grammy-winning engineer and producer Wez Clarke. You can upload and preview unlimited times for free and pay to download, and paid plans offer unlimited masters at up to 192 kHz. It also sells its engine to other platforms via API, including distributors that offer mastering to their users. Reviewers rate it highly for natural-sounding results versus older services.

I took three Suno -generated tracks — Hard Rock, Country, and Soul — and ran them through five commercial AI mastering services:

Not all “AI music” is the same. Some tools write full songs, others just remix, master, or clone voices. Here’s how to tell which ones truly use AI — and which just sound like they do.