Everything priced by the minute of audio
Alignment from $0.16 per song, about half the price of comparable word-alignment APIs.*
Align lyrics word by word, split a mix into isolated tracks, or render a karaoke video. One prepaid credit balance in dollars covers all three — pay only for what you process.
Start free — no card required
Every new account gets 10 free minutes of Tonael at signup, no card needed. Add a card and your allowance grows to 30 free minutes. You are never charged until you buy credit.
Your allowance lands as credit, so you choose how to spend it — on any product, hot or batch. The minutes above are at the Tonael hot rate: Tonael Ultra costs more per minute, so it uses the allowance up faster, and batch makes it last longer. You will see your exact balance once you sign up.
Alignment
Two models, two speeds. Per-song prices assume a typical 3.5-minute song.
| Model | Hot results in minutes | Batch starts within 24h, or refunded |
|---|---|---|
| Tonael word-level lyrics alignment | $0.045 / min from $0.16 / song | $0.028 / min |
| Tonael Ultra vocal isolation + alignment — recommended for dense mixes | $0.095 / min from $0.33 / song | $0.059 / min |
Same output, same quality — you simply trade speed for price. A batch job starts within 24 hours, or it is rejected and fully re-credited: see how billing works.
Separation & video
Billed on the same per-minute basis, from the same balance.
| Product | Hot results in minutes | Batch starts within 24h, or refunded |
|---|---|---|
| Separation — 4 tracks vocals, drums, bass, other | $0.140 / min from $0.49 / song | $0.087 / min |
| Separation — 2 tracks vocals and instrumental | $0.075 / min from $0.26 / song | $0.047 / min |
| Karaoke video 1080p MP4 — see options below | $0.060 / min from $0.21 / song | $0.037 / min |
Separation ships one quality — there is no lesser model to choose from, and no upsell. A video is rendered from an alignment you already have, so three formats of one song cost one alignment and three renders, not three of each.
Video options
The frame and the delivery format change the price. Everything else — the look, the aspect ratio, your own background image, two-singer colours — is included. Each cell shows the hot price, with the batch price beneath it.
| Delivery | 720p | 1080p | 4K |
|---|---|---|---|
| MP4 lyrics burned into the picture | $0.052 / minbatch $0.032 | $0.060 / minbatch $0.037 | $0.120 / minbatch $0.074 |
| Greenscreen MP4 on a key colour | $0.052 / minbatch $0.032 | $0.060 / minbatch $0.037 | $0.120 / minbatch $0.074 |
| Transparent ProRes MOV with an alpha channel — drop it over your own footage | $0.130 / minbatch $0.080 | $0.150 / minbatch $0.092 | $0.300 / minbatch $0.185 |
| CD+G MP3+G bundle for karaoke hardware | $0.030 / min batch $0.018 a fixed 300×216 format — resolution does not apply | ||
Batch renders follow the same rule as every batch job: they start within 24 hours, or they are rejected and fully re-credited. Transparent costs more because it is a near-uncompressed format — about 5 MB per second of 1080p — and takes correspondingly longer to produce.
How billing works
Per second, rounded up. You are billed per second of audio, rounded up; every job has a 30-second minimum.
Word and per-letter timestamps in every result. Each response carries both word-level and per-letter timing at the same price — take whichever you need. (Need a lighter response? Ask for word-level only.)
Batch submissions. Batch trades speed for price, with a 24-hour window: a batch job starts within 24 hours, or it is rejected and fully re-credited — unless you send batch_fallback=hot, which moves it to the hot lane at the hot rate instead. Batch is opportunistic, not guaranteed.
Failed jobs are never charged. If a job fails, the amount is automatically re-credited to your balance.
Result retention. Hot results stay available for 24 hours after completion; batch results for 72 hours.
Prepaid credit packs
Credits are denominated in dollars and drawn down as you process audio. Pick a preset or enter any amount from $15 up.
Credits never expire — they stay on your account for as long as it is open. Credits are prepaid and non-refundable; failed jobs are automatically re-credited to your balance.
Processing more than 10,000 minutes/month? Talk to us.
Contact usPrices in USD, exclusive of VAT. VAT treatment depends on your country and status — for invoicing or VAT questions, contact contact@tonael.com.
* Comparison based on the published list price of a commercial API providing word-level alignment, as of July 2026: $0.09 per minute, against $0.045 per minute for Tonael, for a 3.5-minute song. Details on request.