AI video editor for short-form ads that clones reference videos, generates UGC avatars and bulk-edits variations.

Sisif
Pay-per-clip text-to-video generator with no watermark, no subscription required, credits that never expire, and a REST API.
What is Sisif?
Sisif turns a text prompt into a short portrait video clip and sells clips individually rather than behind a subscription. One clip is $1 and covers 5 seconds at 540x960; a higher 720x1280 tier uses more credits per second. A multi-shot story can be planned up to 60 seconds long at $1 per 5 seconds, and you see the storyboard and price before paying. Clips carry no watermark, include commercial use, and can be downloaded as MP4. Purchased credits never expire, and a failed render returns its credits automatically. Most clips are ready in 2 to 5 minutes, rendered on the company's own GPUs. Developers can call a REST API that starts a render and polls its status, or connect an agent through an MCP server, where an agent can pay for a single clip by card without opening an account. Monthly plans start at $10, with Alpha Tester at $10 a month, Starter Pack at $50 and Pro Creator at $200.
Use cases
- Generate short clips for TikTok and Reels
- Create YouTube Shorts footage
- Plan multi-shot stories from a brief
- Produce marketing and product demo clips
- Render videos through a REST API
- Let AI agents order clips per call
Who it's for
Why use Sisif
- You can start with a single $1 clip instead of committing to a subscription.
- Credits never expire, so unused balance is not lost at month end.
- Failed renders cost nothing because credits are returned automatically.
- The pricing of a story is shown before you pay for it.
- The API and MCP server let software order clips on the same terms as a person.
Sisif features
- Text-to-video clips of 5 seconds at 540x960
- Higher 720x1280 portrait tier
- Story mode up to 60 seconds with storyboard preview
- No watermark on any clip
- Credits that never expire
- Automatic credit refund on failed renders
- MP4 downloads with commercial use
- REST API with generate, status and list endpoints
- Webhook callbacks when a render finishes
- MCP server with pay-per-call payments for agents
Sisif integrations
How to get started with Sisif
- Create an account and pay $1 for a clip, or choose a monthly plan.
- Open Create and write a detailed text description of the scene.
- Pick the 540x960 or 720x1280 tier and render the clip.
- Wait a few minutes, then download the unwatermarked MP4 from your library.
- For automation, POST a prompt to the API and poll the status endpoint or set a webhook.
Sisif limitations
- Clips are portrait format at 540x960 or 720x1280 only
- Rendering takes about 2 to 5 minutes per clip
- API keys default to 10 requests a minute, 100 an hour and 1,000 a day
- Prices are before tax
Sisif pricing
Sisif has no free plan. Plans start at $1 usage-based, according to the official pricing page on .
Sisif plans
One clip
$1
paid once
- 12 credits
- 5 seconds at 540x960
- No watermark
- Credits never expire
Alpha Tester
$10/month
- 120 credits a month
- Same API access
- Commercial use included
Starter Pack
$50/month
- 1000 credits a month
- Same API access
- Commercial use included
Pro Creator
$200/month
- 5000 credits a month
- Same API access
- Commercial use included
Plans as listed on the official pricing page on . Prices can change and may vary by country or exclude tax. Check the official pricing page.
Sisif alternatives
The main Sisif alternatives listed on Debuly are Runway, Pika, Higgsfield, HyperFrames, Seedance and Shortodella. The table compares pricing and platforms; order is A–Z.
| Tool | Pricing | Starting price | Platforms |
|---|---|---|---|
| Sisif | Paid | $1, usage-based | Web, API, MCP |
| Higgsfield | Freemium | — | Web, CLI |
| HyperFrames | Open source | — | CLI, Web, Self-hosted |
| Pika | Freemium | — | Web, iOS, API |
| Runway | Freemium | $12/mo | Web, API |
| Seedance | Pricing unknown | — | Web, API |
| Shortodella | Freemium | $9/mo | Web, API |

Higgsfield
AI video and image generation workspace that brings many generative models together for ads, social clips and cinematic scenes.
FreemiumVisit Higgsfield (official site)
HyperFrames
HeyGen's HTML-based video framework where AI agents write compositions with GSAP timelines and render them to MP4 locally or in the cloud.
Open sourceVisit HyperFrames (official site)
Pika
AI creative platform with 25+ apps for generating and editing video, images and sound, built on several video and image models.
FreemiumVisit Pika (official site)
Runway
AI video, image and audio workspace with Gen-4.5 and partner models, credit-based plans from $12/month and a developer API.
FreemiumVisit Runway (official site)
Seedance
ByteDance Seed video generation model family that makes multi-shot clips with sound from text, images and references, up to 30 seconds.
Shortodella
AI canvas for generating images and short videos, editing them and directing an AI agent in plain English, with an API.
Sisif FAQ
How much does Sisif cost?
A single clip is $1 for 5 seconds at 540x960, paid once. Monthly plans are Alpha Tester at $10/month, Starter Pack at $50/month and Pro Creator at $200/month.
Is there a free plan for Sisif?
The pricing page lists no free tier. Pricing starts with a $1 clip and there is no subscription requirement.
Do Sisif credits expire?
No. Credits you buy never expire, and a failed render returns its credits to your account automatically.
Does Sisif have an API?
Yes. A REST API starts renders and returns status and file URLs, and an MCP server at sisif.ai/mcp lets agents order clips and pay per call.
Can I use the videos commercially?
Yes. Commercial use is included on every purchase and plan, and clips are downloadable as watermark-free MP4 files.
What are alternatives to Sisif?
Alternatives for text-to-video include Runway, Pika, Kling, Luma Dream Machine and Hailuo.
Sources & verification
Facts on this page come from the official sources below, each with the date we read it. Written by Debuly; the vendor did not review this page.
| Source | Type | Accessed |
|---|---|---|
| sisif.ai/ | official | |
| sisif.ai/pricing/ | pricing | |
| sisif.ai/support/ | official | |
| sisif.ai/api/ | pricing | |
| sisif.ai/en/support/ | official |
Image credits
- Logo: from sisif.ai · fetched · Vendor trademark, used only to identify the product; removed on request
- Cover: none collected yet, so a generated tile is shown.
Spot an error? Report an issue with this listing. We also remove a logo or image on the owner's request.




