Lacuna vs MusiCraft Stem Splitter
Lacuna
lacuna.fm
MusiCraft Stem Splitter
musicraft.aiSide by side
| Figure | Lacuna | MusiCraft Stem Splitter |
|---|---|---|
| Price from | $9.50/mo | $7.49/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| macOS | Yes | — |
| iOS | Yes | — |
| API | Yes | — |
| Plans published | 13 | 5 |
| Spec score · AI Birthday Song Generators | 9.2 (#1) | 8.0 (#7) |
| Commercial use | The lyrics page says generated and edited lyrics are the user’s to record, release, and use commercially. | The pricing page includes a commercial license with Studio and Business, while the license agreement says free-plan music is not licensed for commercial use. |
| Integrations | The developer API can be called through REST, a typed TypeScript client, a command-line toolkit or MCP. | The splitter page describes use alongside MusiCraft mastering, BPM/key, and generation tools in the same account. |
Plans
Lacuna
- Basic$9.50 a month
- Pro$24.50 a month
- Ultra$49.50 a month
- Credit Pack S$50 a month
- Credit Pack M$100 a month
- Credit Pack L$500 a month
- FreeFree
- Credit Pack S$50, paid once
- Credit Pack M$100, paid once
- Basic$114 a year
MusiCraft Stem Splitter
- FreeFree
- Basic$89.88 a year
- Pro$179.88 a year
- Studio$359.88 a year
- Business$959.88 a year
In their own words
Lacuna
Lacuna turns a short idea into song lyrics and can send them to its music generator to create a track with AI vocals. The editor supports line-by-line rewrites, syllable counts, automatic rhyme highlighting, and rhyme suggestions ranked by meaning. It supports nine languages, with phonetic rhyme support for English, Spanish, Chinese, Japanese, and Korean. Automatic snapshots let users restore an earlier take after AI edits. Lacuna describes the workspace for songwriters, rappers, topliners, producers, and first-time writers, and says generated or edited lyrics may be recorded, released, and used commercially. The free plan provides 120 credits per month without requiring a credit card; each lyrics AI use costs five credits, and unused credits do not roll over. Pricing lists paid service from $9.50/mo (annual), while Basic is $19 a month. Audio downloads require a subscription, and credit packs alone do not include them. The developer API requires Pro or Ultra and uses credit-based billing. Lacuna lists web, iOS, extension, and API platforms.
MusiCraft Stem Splitter
MusiCraft Stem Splitter is a browser-based tool for separating audio into stems. Its 66 separation modes cover vocals, drums, bass, instruments, choir and sound effects, with options including vocal-and-instrumental, 4-stem, 6-stem and full-band splits. The listed stem types also include guitar, piano, strings, brass, woodwind, saxophone, speech, music and other instruments. Users can upload MP3, WAV, M4A or FLAC files, or select a track from My Music. The in-browser player lets them preview stems and solo or mute them before downloading. Stem splitter mode pages limit uploads to 100 MB and eight minutes. The Free plan includes two editing runs per month and preview playback, but downloads are locked. Paid plans start at $7.49/mo. In Speech / Music / SFX mode, processing costs five credits per minute and output is 320 kbps MP3; 16-bit WAV is available on Studio and Business. The privacy page says uploaded audio is processed securely, not shared with third parties, and stems are deleted after download. The privacy policy also says uploads and generated content may be processed by AI, storage and infrastructure providers.