Series engine for vertical video
Same cast. Same size. Every episode.
Lock a character once — face, height, outfit, voice. Yarnix keeps them the same across every shot of your vertical series, retakes anything that drifts, and charges only for shots that pass.
Try the lineup demo — no signup Free to join · No card
- every shot checked at ±7 % height
- up to 4 characters per shot
- 9:16, caption-safe
- pay per delivered shot
AI video forgets who your characters are.
A fox that's knee-high in one shot is pony-sized in the next, and viewers scroll on.
Drawn to scale; the two renders are in production.
Build a cast. See it to scale.
Pick up to four characters, change a height and read the scale notes the keyframe gets.
Lineup · drawn to scale
Scale is decided before the camera rolls.
Step 01
Passport
Lock looks, height, proportions and voice once.
Step 02
Keyframe
Every first frame is composed to the passports.
Step 03
QC & retakes
Shots past ±7 % are reshot within your budget.
Every episode ships with receipts.
Rejected takes, the largest drift and where every credit went. Below: a sample with illustrative numbers.
Episode receipt
sample receipt · illustrative numbersEpisode 03 · Office rivals · 45 s · Standard
- Charged1,296 cr
- Refunded54 cr
Rejected takes
- Shot 04 · cut · Bolt +9 %
- Shots
- 7
- Retakes
- 1
- Max drift
- 4.1 %within ±7 %
- Charged / quoted
- 1,296 / 1,350 cr
| Length | 45 s |
|---|---|
| Quality mode | Standard |
| Shots | 7 |
| Keyframe candidates judged | 16 |
| Retakes | 1 |
| Credits quoted | 1,350 cr |
| Credits charged | 1,296 cr |
| Credits held | 0 cr |
| Credits refunded | 54 cr |
| Max height drift | 4.1 %within ±7 % |
sample receipt · illustrative numbers
Start from a series format.
A cast, a beat sheet and a look. Swap in your own characters.
Built for casts that come back.
Micro-dramas
Leads that change face between cliffhangers.
A season with the same cast, measured shot by shot.
Brand mascots
A mascot that changes colour and size per clip.
The same mascot, measured against your product.
Consistency you can measure.
| What we check | Yarnix | A typical video generator |
|---|---|---|
| Height and scale | Measured every shot, ±7 % | Guessed from the prompt |
| Face and outfit | Scored against the passport | Best effort per clip |
| Several characters | Up to 4, laid out first | Sizes drift between cuts |
| Failed shots | Retaken inside your hold | Re-roll and pay again |
| Price | Quoted before rendering | Credits per attempt |
| Vertical output | 9:16, caption zone clear | Crop it yourself |
Routed per shot across today's callable models: Kling 3.0, Seedance 2.5, Wan 3.0, MiniMax H3, Veo 3.1, FLUX 3 and Grok Imagine 1.5.
Credits, not surprises.
Credits are held, not spent, until shots are delivered.
Starter
≈ 2 standard episodes (30 s) / month
$19/ month
Creator
Best for series≈ 6 standard episodes (30 s) / month
$49/ month
Pro
≈ 16 standard episodes (30 s) / month
$129/ month
Your cast belongs to you.
Commercial license on Pro and Studio
Your characters stay yours.
Real people only with consent
Public figures are refused.
Refunds for undelivered shots
Failed shots are never charged.
AI labelling on the roadmap
C2PA credentials are not live yet.
Built in public.
Video models forget who your characters are, and a series cannot survive that.
I'm building Yarnix to measure instead of hope: passports in centimetres, keyframes to scale, QC before you pay.
It runs today on demo renders and sample receipts. Real renders and the first invites come next.
Questions, answered.
Why do characters drift?
Video models redraw them every clip and take no height.
How do you keep the scale?
Every shot starts from a frame laid out to the passports.
What does an episode cost?
30 s in Standard: 900 credits, quoted up front.
What if a shot fails QC?
It is retaken within your budget, or not charged.
Can I use the videos commercially?
Yes on Pro and Studio.
Do unused credits roll over?
Plan credits: one extra cycle. Packs: 12 months.
Can a character be a real person?
Only with verified consent; never public figures.
Is Yarnix for kids?
For adults making kids' content, with stricter moderation.
Bring your cast.
Invites go out in small batches.