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Answers to common questions, tips for better clips, and how to reach the team.
Frequently asked questions
Find answers to the most common questions about Sisif's AI video generator.
Getting started
How do I create my first AI video?
Creating your first AI video is easy:
- Create your Sisif account and pay $1 for a clip
- Open Create from the navigation
- Write a detailed text description of what you want to see
- Pick the 540x960 or 720x1280 tier for your 5-second clip
- Render it; most clips are ready in 2-5 minutes
Your video will appear in your library when ready.
How long does video generation take?
Most clips are ready in 2-5 minutes. Processing time may vary slightly based on:
- Video length (longer videos take more time)
- Resolution tier (the higher tier takes more time)
- Current server load
You'll receive a notification when your video is ready, and it will appear in your video library.
Can I download my videos?
Yes. All your generated videos are:
- Saved permanently in your video library
- Available for download in MP4 format, with no watermark
- Yours to keep and use for personal or commercial purposes
- Accessible from any device where you're logged in
Go to your video library and click the download button on any video.
Creating better videos
What makes a good video prompt?
Good video prompts are descriptive and specific. Include details about:
| Lighting | "golden hour", "soft lighting", "dramatic shadows" |
|---|---|
| Style | "cinematic", "anime style", "realistic", "artistic" |
| Setting | "peaceful beach", "bustling city", "cozy cabin" |
| Action | "birds flying", "waves crashing", "people walking" |
| Mood | "serene", "energetic", "mysterious" |
Example: "A majestic eagle soaring through golden clouds at sunset, cinematic style with soft lighting"
What video length and resolution should I choose?
Choose based on your intended use:
| TikTok / Instagram Stories | 540x960 |
|---|---|
| YouTube Shorts | 540x960 or 720x1280 |
| Instagram Posts | 540x960 |
| Marketing videos | 540x960 or 720x1280 |
| Product demos | 540x960 or 720x1280 |
The higher tier uses more credits per second.
Why didn't my video turn out as expected?
If your video didn't match expectations, try these improvements:
- Be more specific: Add more descriptive details to your prompt
- Avoid conflicting elements: Don't mix too many different styles or concepts
- Use clear language: Simple, direct descriptions work better than complex sentences
- Try variations: Generate multiple versions with slightly different prompts
- Reference successful examples: Look at featured videos for inspiration
AI video generation is creative and sometimes unpredictable. A failed render returns the credits, so experiment.
Billing and credits
How do credits work?
Credits are used to generate videos. The cost depends on duration and tier:
| 540x960 | a 5-second clip costs 12 credits, what $1 buys |
|---|---|
| 720x1280 | more credits per second than the lower tier |
| Expiry | credits never expire |
What happens if I run out of credits?
When you're low on credits, you have several options:
- Pay for a clip: $1 buys one clip, no subscription
- Subscribe to a plan: Monthly credit allowances start at $10/month a month
- Wait for renewal: If you're subscribed, credits refresh monthly
- Optimize usage: Use the lower tier and shorter durations to conserve credits
You can view your current credit balance in the top navigation bar when logged in.
How much does Sisif cost?
| Pay per clip | $1 a clip, no subscription, no watermark |
|---|---|
| Monthly plans | from $10/month a month (Alpha Tester): a monthly credit allowance, every tier, commercial use |
Still need help?
Can't find what you're looking for? The team reads every email.
| Email support | Detailed help by email. We typically respond within 24 hours. support@sisif.ai |
|---|---|
| Feature requests | Have an idea for improving Sisif? Send it to the same address with 'Feature request' in the subject. |
| Service status | Check whether the service is up. Status |
Additional resources
More ways to get the most out of Sisif.