Upload your song
Drag in MP3, WAV, FLAC, M4A, AAC, or OGG. Free files can be up to 30MB and 6 minutes.
Honest comparison
LALAL.AI subscriptions include Fast Queue minutes that reset and an unlimited Relaxed Queue. StemSlice instead sells one-time credits that remain available until used.
Separation job
Outputs vocals, drums, bass, and other.
Uploads go to R2, processing runs through Replicate Demucs, and downloads unlock after sign-in.
Drag in MP3, WAV, FLAC, M4A, AAC, or OGG. Free files can be up to 30MB and 6 minutes.
Secure cloud processing isolates vocals, drums, bass, and other instruments while the page shows the current stage.
Listen to 30-second previews free. Unlock full WAV, FLAC, or 320kbps MP3 stems with credits.
These licensed source recordings were AI-separated by StemSlice and excerpted to 30 seconds. User uploads are private and never published.
Pop / 0:30
Switch tracks to compare the same point in the 30-second excerpt.
"Bummin on Tremelo" by Kevin MacLeod (incompetech.com), licensed under CC BY 4.0.
Creative Commons Attribution 4.0 license · AI-separated by StemSlice and excerpted to a 30-second preview.
Contemporary / 0:30
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"Ether Vox" by Kevin MacLeod (incompetech.com), licensed under CC BY 4.0.
Creative Commons Attribution 4.0 license · AI-separated by StemSlice and excerpted to a 30-second preview.
Jazz / 0:30
Switch tracks to compare the same point in the 30-second excerpt.
"Secret of Tiki Island" by Kevin MacLeod (incompetech.com), licensed under CC BY 4.0.
Creative Commons Attribution 4.0 license · AI-separated by StemSlice and excerpted to a 30-second preview.
Rock / 0:30
Switch tracks to compare the same point in the 30-second excerpt.
"Exhilarate" by Kevin MacLeod (incompetech.com), licensed under CC BY 4.0.
Creative Commons Attribution 4.0 license · AI-separated by StemSlice and excerpted to a 30-second preview.
Electronica / 0:30
Switch tracks to compare the same point in the 30-second excerpt.
"Townie Loop" by Kevin MacLeod (incompetech.com), licensed under CC BY 4.0.
Creative Commons Attribution 4.0 license · AI-separated by StemSlice and excerpted to a 30-second preview.
Jazz / 0:30
Switch tracks to compare the same point in the 30-second excerpt.
"Faster Does It" by Kevin MacLeod (incompetech.com), licensed under CC BY 4.0.
Creative Commons Attribution 4.0 license · AI-separated by StemSlice and excerpted to a 30-second preview.
Subscription capacity, specialized stems, and pay-per-song credits solve different needs.
Vocals, drums, bass, and other instruments are exported as separate files you can drop into a DAW.
Paid downloads support lossless WAV, FLAC, and 320kbps MP3 without watermarking.
Uploads and generated stems are encrypted in storage, expire 24 hours after job creation, and are then removed by automated cleanup.
Buy credits once and use them whenever. One full 4-stem download costs 1 credit.
LALAL.AI is strong for daily professional workloads. StemSlice is shaped for creators who want occasional high-quality stems without renting a plan.
| LALAL.AI | StemSlice | |
|---|---|---|
| Pricing model | Subscription; Fast minutes reset, Relaxed Queue unlimited | One-time credit packs, never expire |
| Entry price | Lite €6.75/mo billed annually (€81/yr) | $4.9 once |
| Stems | Up to 10 types | 4 core stems (vocals, drums, bass, other) |
| Free tier | Starter options can change | 3 uploads/day + 30-second previews |
| Best for | Daily professional use | Weekly-to-monthly real-world use |
Stay with LALAL.AI when its specialized stem types, API, or subscription queue better match your workflow.
Choose StemSlice when four core stems and credits that remain available until used better match occasional projects.
Last verified: 2026-10. Competitor details can change. Verify the current provider details.
Test the same lawful source, then compare queue behavior and the outputs actually required.
LALAL.AI currently offers monthly Fast Queue minutes on paid subscriptions and an unlimited Relaxed Queue. Unused Fast minutes do not roll over, while relaxed processing remains available during the paid term. StemSlice uses one-time song credits instead. The better model depends on whether predictable fast throughput or occasional pay-per-song work matters more.
LALAL.AI supports more specialized stem types and calculates usage according to selected separation types. StemSlice focuses one job on four core stems. A fair comparison should use the same song length and required outputs, then include queue time, download format, and whether unused capacity remains valuable next month.
A professional processing many tracks may benefit from subscription features, batch tools, specialized stems, API access, or relaxed-queue capacity. A creator separating a few songs irregularly may prefer credits that remain until used. Both cases are stated directly so the page can help a decision without inventing a universal winner.
Fast minutes, relaxed processing, stem types, export formats, and model output answer different buying questions. Compare the same lawful track for sound quality, then compare queue and credit rules for the expected monthly workload. A provider can be stronger for specialized stems while another is simpler for occasional four-stem jobs.
1 credit unlocks one full 4-stem download. Previewing, listening, and failed processing jobs do not consume credits.
$4.9
5 credits / one-time
Buy Credits$9.9
30 credits / one-time
Buy Credits$19.9
60 credits / one-time
Buy CreditsAnswers for free limits, formats, privacy, copyright, and download quality.
Separation quality depends on the song and selected model. Compare the same lawful source in both previews; LALAL.AI also offers specialized stem types beyond the four core StemSlice outputs.
Most people separate a few songs a month. Credits that never expire fit that reality better than minutes that reset.
StemSlice currently provides 3 free processing attempts per day with 30-second stem previews.
Failed jobs automatically return their credit.
Extracted stems remain the property of the original rights holders. Commercial use requires their permission.