ACE Music v1, developed by ACE Studio, tops Artificial Analysis’ vocal leaderboard with 1,160 Elo points, compared with 1,144 for Suno v6. Their confidence intervals overlap, making the lead narrow, while Suno remains first on the separate instrumental leaderboard. Decrypt’s tests found ACE produced more coherent melodies, more natural vocals and cleaner endings, while Suno performed better in certain niche metal genres. The flagship model remains proprietary, but ACE-Step 1.5 is already open source and ACE Music v1 Flash is scheduled for release in late 2026.
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