One OG Mix. Better local engines.

Two songs.
One impossible mix.

Put the vocals from one song over the music of another. BLENDLINE AI X separates, aligns and renders OG Mix locally on your Windows PC.

Download free ↓Explore engines →

Windows 10/11 · x64 · current release 1.11 Beta 5 · local processing

LOCAL

“Free and unlimited” means processing runs on your computer without a metered cloud service. No credits and no per-mix API bill. Speed and maximum quality depend on your CPU, GPU, RAM and the engine you choose.

Read the details ↓
CORE MDX READYLOCAL · PRIVATE
V
VOCALS FROMMidnight Signal118 BPM · F minor
VOCAL
+
M
MUSIC FROMElectric Bloom121 BPM · F minor
MUSIC
SEPARATED VOCALOG MIXINSTRUMENTAL
0:002:41DRAG PLAYHEAD · 1:16
WORKFLOWSeparate → Protect → Render
OUTPUTFull-length WAV
ONE OG MIX ✦ LOCAL ENGINES ✦ VOCAL SPEED LOCK ✦ NO MIX CREDITS ✦ PRIVATE RENDERING ✦ ONE OG MIX ✦
NEW / Z MODE

Your lyrics.
A complete song.

Start with words instead of two tracks. Choose a genre, mood, vocal character and length; exact-lyric lock keeps your submitted words while a dedicated production recipe directs the selected genre.

Explore Z Mode →Read the guide →
Local and unmetered after setup. The first run downloads the neural engine and model; speed depends on your hardware.
Z NEURAL SONG STUDIOLOCAL

Words become the lead.

Music forms around the performance.

LYRICS+VOICE+MUSIC
01 / ONE WORKFLOW

OG Mix gets better.
It does not multiply.

Plans do not rename the same result into different “modes.” They change the requested local separation engine, protected-performance controls and mastering quality.

01

Separate

A selected local neural engine isolates the lead vocal and instrumental on your Windows computer.

02

Protect

Plan settings can preserve vocal speed, original pitch, natural performance order and the detected downbeat.

03

Render

OG Mix aligns, masters and exports a full-length WAV without a metered cloud rendering service.

02 / ENGINE PLANS

Pay for a stronger engine.
Not another label.

All five local engine paths are present in the current beta. Prices shown are the proposed public plans; checkout remains off until licensing, reliability and release quality are ready.

AVAILABLE NOWFree
$0forever

Fast, private OG Mix rendering with the bundled local two-stem engine.

LOCAL ENGINECore MDX
  • ✓OG Mix
  • ✓Automatic beat alignment
  • ✓Detected downbeat
  • ✓Balanced 16-bit master
LOCAL ENGINE READYPlus
$4.99/ month planned

Cleaner instrumental reconstruction and more control over the musical match.

LOCAL ENGINEClean MDX
  • ✓Everything in Free
  • ✓Original Pitch Lock
  • ✓Higher-overlap separation
  • ✓Clean 24-bit master
LOCAL ENGINE READYCreator
$9.99/ month planned

A larger local model focused on cleaner, more natural exposed vocals.

LOCAL ENGINERoFormer Vocal
  • ✓Everything in Plus
  • ✓Vocal Speed Lock
  • ✓Natural Vocal Flow
  • ✓Formant-safe alignment
LOCAL ENGINE READYPro
$19.99/ month planned

A slower studio pass designed for separation detail, transients and mastering.

LOCAL ENGINEHybrid Studio
  • ✓Everything in Creator
  • ✓Hybrid local separation
  • ✓Transient protection
  • ✓Studio mastering
LOCAL ENGINE READYUltra
$34.99/ month planned

Choose any engine, prioritize speed or quality, or use the maximum-quality ensemble.

LOCAL ENGINEEngine Hub
  • ✓Every BLENDLINE engine
  • ✓Fast / balanced / max quality
  • ✓All performance locks
  • ✓Hardware-aware selection

No processing quotas. Paid plans are intended to unlock local engines and controls, not usage allowances. Final public pricing and availability will be announced only after engine validation.

ENGINE READINESS

What each name actually means

ENGINETECHNOLOGYPRIORITYSTATUS
Core MDXMDX / ONNXFastestBundled in current desktop release
Clean MDXMDX / ONNXFast + cleaner bedInstall from the engine card
RoFormer VocalBS-RoFormerSlower + cleaner vocalInstall from the engine card
Hybrid StudioDemucs + cleanupStudioInstall from the engine card
Maximum Quality EnsembleMulti-passHighest target qualityInstall from the engine card
03 / LOCAL AND UNMETERED

Your computer
is the render service.

BLENDLINE does not charge the engine per minute or send standard desktop mixes into a shared cloud queue. The work happens on your machine.

CPUAlways matters

Handles decoding, analysis, mixing and fallbacks. Slower processors take longer.

GPUCan accelerate AI

Supported local engines can use Windows GPU acceleration. Compatibility varies by engine.

RAM / VRAMSets the ceiling

Larger models and longer tracks require more memory. Maximum quality may not fit every computer.

STORAGEModels live locally

Premium model downloads can be large. They are stored on the device after installation.

NO mix creditsNO render tokensNO per-mix API billNO standard audio upload

“Unlimited” describes local processing allowance, not guaranteed speed, hardware compatibility, storage, model availability, content ownership or permission to publish a mashup.

04 / WINDOWS DESKTOP

OG Mix and
Z Mode.

The current beta includes five mashup-engine paths plus the optional local ACE-Step neural song engine for Z Mode.

  • ✓ Free, unmetered local processing
  • ✓ OG Mix with five engine paths
  • ✓ Neural lyrics-to-song Z Mode
  • ✓ Resumable local engine setup
  • ✓ Draggable timeline and ±5 second controls
  • ✓ Full-length WAV export
BLENDLINE AI XDesktop edition · current beta 1.11.0 Beta 5
PLATFORM
Windows 10 / 11
ARCHITECTURE
64-bit
INSTALLER
392.8 MB
PROCESSING
Local / unmetered
Download for Windows↓This beta installer is unsigned, so Windows may show an “Unknown publisher” notice.Public release hosted by Hugging Face.SHA-256 · EC014899...803ADEA5
05 / RESPONSIBLE CREATION

Your idea.
Your responsibility.

Only upload or link media that you own or are authorized to use. You are responsible for obtaining all necessary rights. Local processing, a paid plan or a BLENDLINE export does not grant licences to third-party music and does not guarantee that a mashup can legally be published or monetized.

06 / CLEAR ANSWERS

Know what runs.
Know what it needs.

Honest answers about local processing, performance, engine readiness, supported media and rights.

01What does free and unlimited actually mean?+

Everything runs on the user’s computer without a metered cloud service. There are no mix credits, render tokens, upload queues or per-mix API charges. Performance depends on the computer’s CPU, GPU and available memory, and larger premium engines may require separate model downloads.

02Does BLENDLINE upload my music?+

The standard desktop workflow performs neural stem separation, analysis and rendering locally. Your source files stay on your machine. A future optional online service would be identified clearly before any upload.

03Why can a higher-quality engine take longer?+

Larger models and multi-pass engines perform more calculations and can require more GPU memory or system RAM. Ultra therefore lets users choose speed, balanced quality or maximum quality instead of claiming one engine is always fastest and best.

04Are all five engine paths available today?+

Yes, the current beta includes the five engine paths and an installer button for every optional local model. Plan checkout is not active yet, so public pricing remains a product proposal rather than a charge.

05Which files can I use?+

The desktop app accepts common audio and video formats, including MP3, WAV, M4A, MP4, MOV, MKV and WebM, and exports a full-quality WAV.

06Can I paste a YouTube link?+

The desktop beta can convert an eligible link into local media when you own the content or are authorized to download it. Source availability and platform rules still apply; the converter is not a copyright workaround.