Vidu AI generates videos from text prompts, images and references, including short audiovisual clips for social and commerce use.
Sisif
Sisif generates short videos from text prompts with a pay per clip price and a REST API.
About Sisif
Sisif is a web-based AI text-to-video generator that creates 5-second portrait clips (540x960 resolution) from user-provided text prompts. It operates on a pay-per-clip model starting at $1 per clip, with no watermarks on any output, no credit expiry, and automatic credit refunds for failed renders. Commercial use rights are included with all clips. The service provides a REST API for programmatic clip generation, plus an MCP server and MPP payment support for agent workflows, along with webhook delivery and an n8n integration template. Clips are delivered to the user's library, via email, or through webhooks, with most renders completing in 2 to 5 minutes.
Key features
- Generates 5-second 540x960 portrait clips from text prompts
- No watermarks on clips at any price point
- Pay-per-clip pricing starting at $1 per clip
- Automatic credit refunds for failed renders
- REST API for programmatic video generation
- MCP server and MPP support for agent workflows
Best for: Short-form social media creators, marketing teams producing ad content, and developers building automated agent video workflows.
Good for
- No watermarks on clips at any price tier
- Credits never expire with refunds for failed renders
- Open-weights model run on company-owned GPUs with no third-party API
Watch out for
- Standard clips are limited to 5 seconds and 540x960 portrait resolution
- Most renders take 2 to 5 minutes to complete
- The website records user visits as noted on its homepage
Sisif at a glance
- Website
- sisif.ai
- Category
- AI & Machine Learning › AI Video Generators
- Type
- Online tool
- Pricing
- Freemium
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
Sisif alternatives
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Minvo extracts short clips, images, and text from videos for repurposing in social content.
quso.ai converts long videos, podcasts, and streams into short captioned clips and can schedule and publish them to social platforms.
Freemium
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Sisif FAQ
Do purchased credits expire?
No, purchased credits never expire and remain available until used.
Are generated clips watermarked?
No, all clips are delivered without watermarks at any price point.
What happens if a video render fails?
The credit used for the failed render is automatically returned to the user's account.
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