How to Make Video Clips with AI
Practical tutorial showing exactly how to generate 15-second AI video clips using Veo 3.1, Kling 3.0 and Seedance 2.0 inside Flixly with concrete prompts and export settings.
TL;DR
Use Flixly Text to Video with Veo 3.1 or Kling 3.0. Write a 120-character prompt, pick 6-second duration at 1080p, generate, then add lip sync if needed. The full workflow produces a finished 15-second vertical clip in under 3 minutes after the first attempt.
The Real Cost of Manual Clip Creation
A 15-second video clip still requires 90-120 minutes of work when you handle script, shots, and edits yourself. Stock footage licensing adds another $20-50 per clip while deadlines slip.
Why Template Tools Fall Short
Pre-built templates lock you into fixed aspect ratios and motion presets that rarely match brand voice. Exporting 1080p clips from Canva AI often produces visible compression artifacts after 3-4 re-exports.
Models That Deliver Usable Clips
Flixly runs Veo 3.1 for cinematic motion, Kling 3.0 for consistent character movement, and Seedance 2.0 for fast 720p drafts. Each model accepts text prompts up to 280 characters or reference images at 1024x1024.
Text to Video accepts direct prompts. Image to Video extends still frames into motion sequences lasting 4-8 seconds. Shorts Generator outputs vertical 9:16 files ready for TikTok or Reels.
Step-by-Step Process
- Open the dashboard and select the Text to Video tool. Enter a 120-character prompt that names subject, action, camera move, and lighting.
- Choose Veo 3.1 or Kling 3.0 from the model dropdown. Set duration to 6 seconds and resolution to 1080p.
- Add a reference image if you need character consistency; upload a 1024x1024 PNG.
- Generate the first pass. Review the 4-8 second clip at 24 fps.
- If motion stutters, switch to Seedance 2.0 and regenerate with the same prompt.
- Apply Lip Sync Video if dialogue is required; upload a 3-second audio file.
- Export the MP4 at 30 fps with auto-captions enabled.
- Download the final file under 25 MB for direct upload.
Model Comparison
| Model | Max Duration | Typical Credit Cost | Best For |
|---|---|---|---|
| Veo 3.1 | 8 seconds | 12 credits | Cinematic camera moves |
| Kling 3.0 | 6 seconds | 9 credits | Character consistency |
| Seedance 2.0 | 4 seconds | 6 credits | Quick vertical drafts |
Edge Cases and Limits
Prompts longer than 280 characters are truncated. Complex multi-character scenes drop frame consistency after 5 seconds on all three models. Voice cloning requires a 15-second clean sample and adds 4 credits.
Auto Captions works on any exported MP4 but may misalign on heavy accents. Test one clip before batching 20+ generations.
Common Questions
How long does a 15-second clip take to generate?
Veo 3.1 finishes a 6-second base in 25-40 seconds. Extending to 15 seconds via two passes plus lip sync totals under 3 minutes on average.
Can I keep the same character across multiple clips?
Upload the same reference image to every generation. Kling 3.0 maintains facial features at 85% similarity across 4 clips when lighting stays consistent.
What file formats are supported for export?
MP4 at 1080p or 720p, 24 or 30 fps. Audio is embedded as AAC 128 kbps.
Does credit cost change with resolution?
1080p uses 50% more credits than 720p on all listed models. 4K output is not available.
Next Action
Start your first clip in the Text to Video tool now.
Frequently Asked Questions
How many credits does a 6-second 1080p clip cost on Veo 3.1?▾
Veo 3.1 charges 12 credits for a 6-second 1080p clip. Switching to 720p drops the cost to 8 credits.
Can Seedance 2.0 handle dialogue in video clips?▾
Seedance 2.0 does not include audio. Run the clip through Lip Sync Video afterward and supply a separate voice track.
What prompt length works best for consistent motion?▾
Keep prompts between 80 and 140 characters. Longer text gets truncated and reduces motion coherence after 4 seconds.
How do I maintain the same character across five clips?▾
Upload the identical 1024x1024 reference image to every generation and keep the same model and lighting description.
