AI song marble races

Your song.
Six marbles.
One winner.

Drop a track or your Jammable covers, name the marbles, hit go. RaceCut builds the course, races it to the beat and hands you a TikTok-ready video. No Blender. No CapCut. No 3 a.m.

Free tier renders in your browser. Nothing to install.

Live demoCamera follows the leader
NOW SINGING · SPONGEBOB AI
Which AI voice
wins this song?
SpongeBob takes the mic
MADE WITH RACECUT
SpongeBob AIPeter Griffin AIShrek AIHomer AIPatrick AIRick AI
How it works

Song in.
Video out.
Physics is the easy part.

Every other marble tool gives you a race and leaves the music to you. RaceCut listens first — beats, sections, the chorus — then builds a race that lands on them.

1

Feed it a song

Upload an MP3, paste a link, or pull covers straight from your Jammable library. Cover Race takes several versions of one song — one per marble.

2

Name your marbles

Fans, cartoons, countries, voices. Colours and avatars. Pick a course, a length (15/30/60 s or the whole song), and whether it's fair or rigged.

3

Post it

What you see in the browser is exactly what renders. Download 1080p with lyrics burned in, or send it straight to TikTok, Shorts and Reels.

Formats

Built for the races people actually watch

Launch

Cover Race

Each marble is a different AI cover of the same song. Whoever leads is who you hear. Camera follows the leader — so does the audio.

Launch

Classic Race

Named marbles, one song, a winner reveal on the drop. Fair by seed, or rig it and let the comments fight.

Soon

Elimination

Last place gets knocked out every section change. One survivor at the outro, on the beat.

Soon

Ranking Reveal

“Top 10” countdowns — marbles finish in the order you set, one per lyric line.

Later

Melody Run

Marbles hit bars that play the vocal line, transcribed from the stems. The satisfying one.

Later

Series & Seasons

Persistent characters, standings and leaderboards across episodes — the reason people follow the channel.

For creators

One race is a demo.
Thirty a month is a channel.

RaceCut is built for people who post every day — the stuff that comes after “export” is the product.

×10

Batch

One song × ten courses, or ten songs × one course. A week of content from one job.

Autopilot

“Every day at 6pm, race my newest covers and post to TikTok.” Set it, check the numbers.

Brand kit

Your logo, colours, intro/outro cards, fonts and hook-text presets on every export.

A/B

Variants

Same race, three hooks, three thumbnails. Post them all, keep the winner.

Direct posting

Connected TikTok, Shorts and Reels accounts. Schedule from RaceCut, no downloads.

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API + Zapier

For agencies running twenty faceless channels. Race spec in, MP4 URL out.

Jammable inside

Your covers are already the soundtrack.

  • Import any cover from your Jammable library in one click — voice name and avatar become the marble.
  • Marble-race voice packs from the Jammable community, ready as marble sets.
  • One login. Jammable Plus and Pro members get bundled render minutes.
  • Every export links to a race page where viewers can make their own cover.
jammable.com · SpongeBob AI covercover
↓ race these covers
RaceCut · Cover Race · Neon course60 s
↓ render · captions · brand
tiktok.com/@you · 6:00 pmposted
Pricing

Free in the browser.
Pay when you’re posting daily.

Free
$0
  • Renders on your device
  • 720p with RaceCut watermark
  • 3 videos a day
  • Classic Race
For messing around
Join the waitlist
CreatorMost picked
$15/mo
  • 1080p, no watermark
  • 60 render minutes a month
  • All formats + brand kit
  • Direct posting
For solo creators
Get early access
Studio
$39/mo
  • 240 render minutes a month
  • Batch + Autopilot
  • Series & Seasons
  • 3 channels, priority GPU
For daily posters & faceless channels
Get early access
Agency
$99/mo+
  • 1,000 render minutes
  • API keys + Zapier
  • 10+ channels, team seats
  • Overage $0.10 / min
For agencies & tool builders
Talk to us
FAQ

Questions

Do I need Jammable to use RaceCut?

No. Upload any track or paste a link. Jammable just makes Cover Race one click instead of ten — your covers arrive with names and avatars attached.

Is the outcome random?

Your call. Fair races are seeded and reproducible. Rigged races let you pick the winner or the whole finishing order, and RaceCut finds a physics run that produces it. Nothing is faked in post.

Does the preview match the final video?

Yes — the same simulation and renderer run in your browser and on our render servers, frame for frame. Free renders happen on your device; paid plans render on GPUs so you can batch.

What about music rights?

You're responsible for the audio you upload, same as any editor. Cleared library tracks and your own Jammable covers are the safest path, and direct posting follows each platform's commercial-music rules where they apply.

Which platforms can it post to?

TikTok, YouTube Shorts and Instagram Reels at launch, scheduled from RaceCut. You can always just download the MP4.

Early access

Race your first song this week.

We’re onboarding creators in small batches. Leave an email and tell us what you post — Jammable members go first.