SampLab Pro is a browser-based music workspace that connects AI creation with practical audio and MIDI tools. A musician can sketch lyrics or a song, separate an existing recording into stems, trim the result, inspect its tempo and chords, convert audio into editable MIDI and produce draft notation without moving between several unrelated services.
What SampLab Pro does
The product has two distinct parts. Cloud AI tools generate lyrics and songs or split recordings into stems. The utility tools run in the browser and cover audio cutting, audio-to-MIDI conversion, MIDI editing, tempo and chord analysis, frequency-band splitting, MIDI rendering and sheet-music preparation. Browser processing means a source file is not uploaded unless the user deliberately saves a result or sends it to a cloud AI workflow.
- Generate lyrics from a theme and turn a description or original lyrics into a song
- Separate vocals, accompaniment, bass and drums with cloud stem separation
- Trim audio and move a result directly into another SampLab Pro tool
- Convert recordings into MIDI, edit notes and render MIDI back to audio
- Estimate tempo, key and chords, or split audio into frequency bands
- Draft sheet music, guitar tabs and bass tabs from suitable source material
- Keep saved work in a private account library
Pricing and credits
Browser-local audio and MIDI tools are free and do not consume credits. Signed-in free accounts can spend up to 10 AI credits per UTC day. AI lyrics cost 6 credits, a song from lyrics, an instrumental or a description costs 47 credits, and stem separation costs 9 credits per started minute. Paid stem jobs have a 36-credit minimum; free accounts have no minimum but are limited to one minute.
Monthly plans are Basic at US$9.99 for 1,000 credits, Starter at US$19.99 for 2,000 credits and Pro at US$29.99 for 3,000 credits. Annual billing is US$99.99, US$199.99 and US$299.99 respectively and adds twelve months of credits at once. One-time packs cost US$14.99, US$29.99 or US$44.99 for 1,000, 2,000 or 3,000 credits. Credits remain in the balance without a separate expiry date, although saved library files follow their own retention period.
Limits and data handling
Most browser audio tools accept common browser-decodable formats up to 50 MB and ten minutes. MIDI files are limited to 50 MB, 20,000 notes and ten minutes of playback. The free stem splitter accepts files from one second to one minute and up to 50 MB; paid plans extend this to 15 minutes and 200 MB. Free library files are retained for 180 days, while new files saved under a paid membership remain until the subscription period ends plus three calendar months.
The company says failed AI tasks are automatically refunded. It identifies Evolink as the provider behind lyrics and song creation and WaveSpeed as the cloud stem-separation provider. Users working with unreleased music should therefore distinguish the local tools from workflows that send required inputs to third-party cloud services.
Our assessment
SampLab Pro is best suited to songwriters, producers, music students and video creators who want a connected path from an idea to stems, MIDI and notation. Its strongest feature is not a single generator but the way outputs can move into editing and analysis tools without repeated downloading and uploading. The browser-local utilities also provide useful value before a subscription is needed.
Generated songs and automatic transcription still need musical review. Polyphonic audio, noisy recordings and complex arrangements can produce imperfect notes, chords or notation, and generated content is not guaranteed to be cleared for commercial use. Prospective buyers should test the free tools with their own material, check the licensing terms and compare the credit cost of the AI tasks they expect to run regularly.