AI TikTok Video Maker for Vertical Clips

Describe the clip, pick portrait, download an MP4 that fits the TikTok feed without cropping. $1 per clip, and no watermark on any export.

TikTok punishes letterboxed video, so Sisif renders portrait by default: 540x960 for quick drafts, 720x1280 when you want it sharp. A 5-second clip costs 12 credits at 540x960, which is one purchase: $1 per clip. Pair a clip with a trending sound in the TikTok editor and you have a post in under ten minutes.

A short prompt is one 5 s clip at $1. A timeline is a story, $1 per 5 s, priced before you pay.

See the specs

$1 a clipNo watermarkNo subscriptionCredits never expire

Sisif · terms
sisif.ai · rendered on our own GPUs
Watermarknone, ever
Credit expirynever
Failed rendercredits returned
Commercial useincluded
Subscriptionnone required
Modelopen weights, our GPUs
Agentspay per clip over the API
1 × clip, 5 s, 540x960$1
Total$1
Same terms on clips, and on every monthly plan.

What you get

Feature Sisif
Price $1 a clip, no subscription
Watermark None, on every plan
Cost of a 5-second clip 12 credits at 540x960, 30 at 720x1280
Model Open weights
Export MP4, portrait
Aspect ratio 9:16 vertical, no cropping

How it works

01

Describe the clip

Write what should happen in 5 seconds: the subject, the style, the camera move. The prompt stays attached to the render, so you can see what made each clip.

02

We render it

An open-weights model on GPUs we operate turns the prompt into a 540x960 portrait clip, most of the time in 2-5 minutes. A failed render returns the credits.

03

Download and publish

One MP4, no watermark, yours to publish anywhere, commercial use included. Pay $1 for the clip; nothing recurring.

Prompt tips

  1. 01 Front-load the hook: put the most striking visual in the prompt's first clause so it appears in the opening frame.
  2. 02 Ask for 'close-up' or 'macro' shots. Small phone screens reward big subjects.
  3. 03 Generate three variants of the same prompt and keep the one with the cleanest motion.

Frequently asked questions

How much does the AI TikTok Video Maker cost?

Every clip is $1. One payment buys one 5-second portrait render, with no subscription. Monthly plans start at $10/month when you want volume.

Does Sisif put a watermark on a TikTok video?

No. Every export is a clean MP4 with no watermark or logo, on a single clip and on a monthly plan alike.

How long does a TikTok video take to generate?

A few minutes. You type the prompt, Sisif renders a 5-second portrait clip with an open-weights video model, and you download the MP4 from your library.

Explore more

Recent renders, with the prompt that made each one 5 s · 540x960 portrait
01Epic overhead shot of a desert glamping site in Morocco: starlit sky, lantern-lit tents, travelers sharing stories around a crackling fire, Milky Way time-lapse spiraling above, soft acoustic outro.
02you are dreaming. You wander an endless library whose shelves float in star-speckled darkness. Every book hums softly; opening one projects holograms of forgotten childhood memories. A paper moon drifts between aisles, guiding you toward a blank tome titled “Tomorrow.”
03“Bridal Bubbles at Dawn” – The bride, still in her delicate lace cover-up, the sunrise casting a blush glow over the scene.
04Sorrento Coast, drone shot, travel, holiday video, sunny day
05travel, beautiful shot, island, exotic, people on the beach having fun
06“Champagne Sandbar Soirée” – Three girlfriends clink flutes on a hidden sandbar; one splashes sparkling water at the camera while the others strike carefree, swimsuit-model poses.

Ready to make a clip?

Every clip is $1. No watermark, no subscription, and the credits you buy never expire.

Render a clip See pricing
Render a clip 5 s · 540x960 · no watermark · nothing expires