YouTube
AI Video Generator for YouTube
Generate YouTube Shorts, channel intros, and b-roll clips with AI. 9:16 vertical format, cinematic output, download-ready in under 60 seconds.
Where AI Video Fits in Your YouTube Workflow
YouTube now surfaces Shorts alongside long-form content in the main feed, and the Shorts tab has its own dedicated distribution channel. Creators who produce both long-form and short-form content consistently grow faster than those who focus on only one format.
The production bottleneck is not ideas — it is execution time. Writing scripts, filming, and editing a 60-second Short can take as long as a longer video when done manually. AI video generation removes that bottleneck for visual content: generate the footage from a prompt, combine it with voiceover or on-screen text in your editor, and post.
Seedance 2.0 is particularly useful for YouTube channels in categories that require varied visual footage: travel, nature, science, technology, fitness, and educational content. The Seedance 2.0 model produces cinematic motion that holds up alongside broadcast-quality footage in long-form edits.
How to Generate YouTube Shorts with AI
- Step 1
Write a high-retention prompt
Lead with the action and the visual hook. Structure: subject + immediate motion + camera angle + lighting. Avoid slow pans or establishing shots — YouTube Shorts retention drops sharply in the first two seconds.
- Step 2
Set to 9:16 and pick your duration
Select 9:16 aspect ratio for native Shorts format. Choose 5 to 15 seconds for standalone Shorts in Standard mode, or use 4, 8, or 12 seconds in Fast mode when you want faster iteration. For intro clips and cutaways, 4 to 8 seconds is usually enough.
- Step 3
Download and edit or post directly
Download the MP4 and upload directly to YouTube as a Short, or import it into your editing software for b-roll and intro use. Seedance 2.0 Standard supports up to 1080p output, and the exported MP4 is compatible with all major editing tools.
YouTube Use Cases for AI Video
YouTube Shorts
Shorts get distributed in a dedicated feed separate from long-form content. A 9:16 vertical clip under 60 seconds is eligible for Shorts distribution, and Seedance 2.0 supports short-form generation from 4 to 15 seconds depending on the model. That is enough for standalone Shorts, looping visuals, and punchy narrative beats.
Channel Intros
A 4 to 8 second branded intro sets the visual tone for every video. Generate a cinematic intro clip with your channel style — motion graphics, landscape reveals, abstract loops — and use it as a consistent opening across your content.
B-Roll and Cutaways
AI-generated b-roll fills gaps in long-form content without an additional shoot. Generate nature footage, location shots, or abstract visuals that match the mood of your main content and cut them in during editing.
Thumbnails and Previews
Use a single frame from an AI-generated clip as a thumbnail source, or generate a short animated preview to embed in the video description. The high-fidelity output from Seedance 2.0 produces frames that hold up at thumbnail resolution.
Frequently Asked Questions
- What is the ideal length for AI-generated YouTube Shorts?
- YouTube Shorts can be up to 60 seconds, but the best-performing Shorts tend to be under 30 seconds. For AI-generated content, 5 to 15 seconds works well as a standalone looping Short or as a visual component within a longer edit. Seedance 2.0 Standard supports 4, 8, 12, and 15 second outputs, while Fast supports 4, 8, and 12 second outputs.
- What aspect ratio does YouTube Shorts use?
- YouTube Shorts uses the 9:16 vertical format, the same as TikTok and Instagram Reels. Select 9:16 in Seedance 2.0 before generating. The output matches the Shorts format exactly — no cropping, padding, or reformatting required on upload.
- Can I use AI video for b-roll in long-form YouTube videos?
- Yes. Generate nature footage, cityscapes, abstract visuals, or any scene that fits your content, then cut the clips into your main edit as b-roll or cutaway footage. Seedance 2.0 Standard supports up to 1080p output for sharper YouTube delivery, while Fast mode stays capped at 720p.
- How do I write prompts for high-retention YouTube Shorts?
- High-retention Shorts have a strong visual hook in the first frame. Write prompts that open with action: "A rocket launching from a desert launchpad, dramatic low angle, dust clouds rising, golden sunrise light." Avoid slow establishing shots — cut directly to the most visually interesting moment.
Start generating YouTube content
Write a prompt, generate a clip, download and post. Under 60 seconds from idea to finished file.
Open Generator