Ableton Live 12.3 Beta: AI Stem Separation and Splice Integration

Ableton Unveils a New Creative Powerhouse with Live 12.3 Beta

On September 13, 2025, Ableton announced the public beta for Live 12.3, a landmark free update for all Live 12 users. This release moves beyond minor tweaks, introducing powerful, AI-driven features that directly address long-standing user requests and fundamentally change creative possibilities within the DAW.

The Game-Changer: Native Stem Separation

The most significant new feature is a built-in stem separation tool, available for users of Live 12 Suite and the Push 3 Standalone. Developed in partnership with audio AI specialists Music.AI, this tool allows you to take any audio clip and split it into four distinct stems:

• Drums: Isolates the percussive elements.
• Bass: Extracts the low-end frequencies and bassline.
• Vocals: Separates the lead and background vocals.
• Other: Contains the remaining harmonic and melodic content, such as synths, guitars, and pianos.

For producers, this means the ability to remix tracks, create bootlegs, or sample previously inaccessible melodic phrases is now just a right-click away. DJs can generate acapellas or instrumentals on the fly, opening up new avenues for live performance. The feature is integrated directly into Live's workflow, eliminating the need for third-party websites or plugins.

Seamless Sampling with Deep Splice Integration

Live 12.3 also introduces a deep integration with the Splice sample library. Users can now browse the entire Splice catalog directly from Live's browser, streamlining the sample discovery process.

The standout feature here is "Search with Sound." This AI-powered function lets you drag any audio or MIDI clip from your project into the search bar. Live then analyzes its sonic characteristics—including rhythm, harmony, and timbre—and finds matching samples in the Splice library. This innovation promises to dramatically accelerate the process of finding the perfect sound, keeping producers in their creative flow.

Essential Workflow Enhancements

Beyond the headline features, the 12.3 beta includes several key workflow improvements:

Expanded Bouncing Capabilities

Rendering audio is now more flexible. The update expands track bouncing options, giving users more precise control over how audio and MIDI are converted. This allows for faster and more intuitive commitment of tracks, including options for how effects processing is applied.

Universal A/B Comparison

A highly-requested feature, A/B comparison, has been added to all of Live's native instruments and effects. This simple but powerful tool allows you to compare two different sets of settings on any device with a single click. It's an essential function for making confident mixing decisions and fine-tuning sound design without losing your starting point.

A Major Step Forward

The Live 12.3 update represents a significant evolution for the platform. By integrating cutting-edge AI tools for stem separation and sample searching directly into the DAW, Ableton is providing powerful new creative levers for artists. The public beta is available for testing by all registered Ableton Live 12 users.