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AI Stem Separation
What AI Stem Separation is
AI Stem Separation is a web tool for splitting audio into vocal and instrumental tracks or into separate musical parts such as vocals, drums, bass, guitar, piano, and other stems. Before processing, users can choose 2-stem, 4-stem, or full 6-stem separation. The service says it runs Demucs on Replicate, using htdemucs for 2- and 4-stem jobs and htdemucs_6s for 6-stem jobs. It accepts MP3, WAV, FLAC, M4A, OGG, and WEBM files, as well as YouTube and SoundCloud links. Users can preview the results, download selected tracks or a ZIP, and export WAV with a minute pack. Charges are based on source audio length, rounded up per job, rather than the number of stems downloaded. There is a free plan with five minutes for use during the current month; one-time paid packs start at 4.99 USD. File limits and job retention vary by pack. The service does not support Spotify or TikTok imports and has no VST or AU plugin.
Who it suits
The service may suit musicians, DJs, producers, music teachers, content creators, and podcasters who need separated audio tracks. It can also serve people who want to bring downloaded stems into Logic Pro, Ableton Live, FL Studio, Cubase, or Reaper.
What it does well
- Offers 2-, 4-, and 6-stem processing options
- Accepts six audio formats and YouTube or SoundCloud links
- Preview and download selected tracks or a ZIP
- Free plan includes five minutes for the current month
What to know first
- Spotify and TikTok imports are not supported
- No VST or AU plugin
- File size and duration limits vary by pack
- Processed jobs are retained for a limited window
Limits
The free plan provides 5 minutes for use within the current month, with a 4-minute and 50 MB per-file maximum and MP3 downloads. Spark provides 30 minutes with a 15-minute and 100 MB per-file maximum and MP3 downloads; Session and Batch add WAV downloads with higher per-file limits. Unused free minutes expire this month, and paid pack minutes do not expire.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | $0; 5 minutes, use within this month · 5 minutes · max 4 min/file · max 50 MB/file · MP3 downloads · unused minutes expire this month | Free |
| Session | $11.99 one-time for 100 minutes ($0.12/min) · 100 minutes · never expire · max 20 min/file · max 150 MB/file · MP3 and WAV downloads | $11.99, paid once |
| Batch | $29.99 one-time for 300 minutes ($0.10/min) · 300 minutes · never expire · max 30 min/file · max 250 MB/file · MP3 and WAV downloads | $29.99, paid once |
| Spark | $4.99 one-time for 30 minutes ($0.17/min) · 30 minutes · never expire · max 15 min/file · max 100 MB/file · MP3 downloads | $4.99, paid once |
As aistemseparation.com lists them, read 8 Oct 2026. The maker's own page has the final word.
Getting started
- Open the service website in a browser.
- Choose the free plan or a minute pack.
- Upload a supported audio file or provide a YouTube or SoundCloud link.
- Select 2-stem, 4-stem, or 6-stem separation before processing.
- Preview the stems, then download selected tracks or a ZIP.
- Import downloaded stems into a supported DAW if needed.
Verdict
AI Stem Separation provides several separation options, multiple ways to supply audio, and downloads for use in named DAWs. Check the pack limits and retention window before relying on it for longer files or ongoing access.
Questions
Is AI Stem Separation free?
Yes. Its Free plan includes 5 minutes, usable during the current month. Unused minutes expire that month.
How much do the paid plans cost?
Spark is $4.99, paid once for 30 minutes, Session is $11.99, paid once for 100 minutes, and Batch is $29.99, paid once for 300 minutes.
Which audio inputs does it accept?
It accepts MP3, WAV, FLAC, M4A, OGG, and WEBM files, as well as YouTube and SoundCloud links. Spotify and TikTok imports are not offered.
Which platforms and DAWs does it support?
The service runs on the web. Downloaded stems can be imported into Logic Pro, Ableton Live, FL Studio, Cubase, or Reaper; the service has no VST or AU plugin.
Can I download WAV files?
The Session and Batch plans include MP3 and WAV downloads. Free and Spark list MP3 downloads.
How is processing billed?
Processing is charged according to source audio length, rounded up per job, rather than by the number of stems downloaded.
Facts from AI Stem Separation's own pages
- Billing
- Processing is charged by source audio length, rounded up per job, and not by the number of stems downloaded. · aistemseparation.com, 8 Oct 2026
- Data processing
- Uploaded audio and generated stems may be transmitted to cloud hosting, storage, and AI inference providers to provide the service. · aistemseparation.com, 8 Oct 2026
- DAW compatibility
- Downloaded stems can be imported into Logic Pro, Ableton Live, FL Studio, Cubase, or Reaper; the service says it has no VST or AU plugin. · aistemseparation.com, 8 Oct 2026
- Exports and workflow
- Users can preview and audition stems, download selected tracks or a ZIP, and export WAV with a minute pack. · aistemseparation.com, 8 Oct 2026
- Import exclusions
- The service does not offer Spotify or TikTok import. · aistemseparation.com, 8 Oct 2026
- Input formats
- The tool accepts MP3, WAV, FLAC, M4A, OGG, and WEBM files, and supports YouTube or SoundCloud links. · aistemseparation.com, 8 Oct 2026
- Intended users
- The site describes use cases for musicians, DJs, producers, music teachers, content creators, and podcasters. · aistemseparation.com, 8 Oct 2026
- Limits and retention
- File size and duration limits depend on the pack, and processed jobs remain available in My Jobs only within a limited retention window. · aistemseparation.com, 8 Oct 2026
- Models and processing
- The site says it runs Demucs on Replicate, using htdemucs for 2/4-stem jobs and htdemucs_6s for 6-stem jobs. · aistemseparation.com, 8 Oct 2026
- Security and privacy
- The privacy policy says the service uses encryption in transit, access controls, and least-privilege practices where applicable, and does not sell personal information. · aistemseparation.com, 8 Oct 2026
- Separation modes
- Users can choose 2-stem, 4-stem, or full 6-stem separation before processing. · aistemseparation.com, 8 Oct 2026
- Support
- The site lists [email protected] for feedback and support. · aistemseparation.com, 8 Oct 2026
- What it does
- The browser service separates audio into vocals, drums, bass, guitar, piano, and other stems, or into vocal and instrumental tracks. · aistemseparation.com, 8 Oct 2026
Where AI Stem Separation stands on Freedom251
- AI Stem Splitters#8 of 26