How to make reels with AI
Generate Instagram and TikTok reels in minutes using Flixly AI models. Follow step-by-step prompts with Seedance 2.0 and Kling 3.0 to produce 15-second vertical videos ready for posting.
TL;DR
Use Flixly's Shorts Generator with Seedance 2.0 to turn a short text prompt into a 15-second vertical reel in under two minutes. Add reference images via Reference to Video for character consistency and finish with Lip Sync Video plus auto captions for complete posts.
Flixly lets you generate 15-second Instagram reels from text prompts in under two minutes with Seedance 2.0. Start by signing up at the dashboard and purchasing credits to access the full suite of video tools.
Picking models that fit reel formats
Seedance 2.0 handles quick motion for 9:16 vertical clips at 1080 by 1920 resolution. Kling 3.0 adds smoother camera moves when you supply a single reference image. Veo 3.1 works best for lip sync sequences that run 12 to 20 seconds long.
Test one prompt across three models to see which output needs the least editing. A sample prompt such as "energetic dancer on city rooftop at sunset" produces usable clips from all three in a single batch run.
Model speed and length limits
- Seedance 2.0 outputs a finished 15-second reel in roughly 45 seconds of generation time.
- Kling 3.0 requires an extra 20 seconds when you add motion brush strokes.
- Veo 3.1 caps clips at 18 seconds before you stitch segments together.
Building a reel from text alone
Open the Shorts Generator and enter a 40-word script. The tool returns three variations that you can preview side by side. Pick the one with the strongest opening hook and export the 1080p file directly to your phone.
Add auto captions through the same dashboard page to keep viewers watching past the first three seconds. Export the captioned version as an MP4 that fits Instagram upload rules without further compression.
Using image references for consistent characters
Upload a single character photo to the Reference to Video page. The model keeps the same face and outfit across every frame. Pair this with a 10-second motion prompt such as "walk forward while waving" to create a branded series.
Run the same reference image through Image to Video when you want background changes without altering the subject. One credit batch typically yields four 12-second clips.
Adding sound and voice
Generate background music at Music Generation and select a 15-second loop that matches the reel tempo. For spoken lines, head to Text to Speech and choose Gemini 3.1 Flash TTS for natural pacing.
If you already recorded audio, use Lip Sync Video to match mouth movements to the track. The process takes 30 seconds per clip and preserves the original lighting.
Editing and finishing touches
Apply quick effects at AI Video Effects to adjust color grade or add subtle motion blur. Export the final reel at 30 frames per second to avoid Instagram compression artifacts.
Compare output quality across two models in the table below.
| Model | Typical length | Generation time | Best for |
|---|---|---|---|
| Seedance 2.0 | 15 seconds | 45 seconds | Fast vertical clips |
| Kling 3.0 | 12 seconds | 65 seconds | Reference images |
| Veo 3.1 | 18 seconds | 55 seconds | Lip sync scenes |
Scaling production for weekly posts
Create a reusable character folder in the dashboard so every new reel starts from the same reference set. Schedule batches on Monday mornings to produce five reels before noon. Track credit usage in the account panel to stay within your monthly plan.
Link the finished files straight to your phone gallery for final captions or stickers. The entire workflow from prompt to posted reel stays under 15 minutes once you learn the interface.
Ready to start your first reel? Head over to the Shorts Generator now.
Frequently Asked Questions
How long does it take to make one reel with AI?▾
Most 15-second reels finish in 45 to 90 seconds of generation time on Seedance 2.0 or Kling 3.0. Adding lip sync or music extends the total to about two minutes.
What resolution should AI reels use for Instagram?▾
Export at 1080 by 1920 pixels in 9:16 aspect ratio. This matches Instagram Reels specs and prevents cropping during upload.
Can I keep the same character across multiple reels?▾
Yes. Upload one reference photo to the Reference to Video tool and reuse it for every new clip. The model maintains face and clothing details across batches.
Do I need my own voice recording for talking reels?▾
No. Generate speech with Text to Speech or Gemini 3.1 Flash TTS then match it to video using the Lip Sync tool. This replaces the need for separate audio files.
How many credits does a typical reel cost?▾
A basic 15-second reel from text costs one credit. Adding reference images or lip sync usually uses two credits per final export.
