Videos 1, 2 - Seedance 2 fast,
Videos 3, 4 - Seedance 2
Start/Reference image.
Try it with your own AI avatar and post it in the comments!
Video prompt for all 4 videos:
The woman whispers with a soft voice: Don't fall in love! I'm not real! Real emotions, ultra-realistic movements, and lipsync. Realistic skin and hair. The woman gently touches her cheek with her hand with red nails.
(Video 2 ignores my prompt... Video 3 adds blue lashes. )
Here is the simple difference:
Seedance 2 Fast
- Cheaper and faster
- Good for testing ideas and prompts
- Often ignores the prompt
- Can say wrong sentences
- Movements can look random
Use it to experiment, not for final videos.
Seedance 2
- About double the cost
- Better quality
- Follows the prompt more accurately
- Speech and movements are more consistent
Use it for ads and final content.
Best workflow:
First use Seedance 2 Fast to find a good idea.
Then switch to Seedance 2 for the final result.
If you want clean, professional videos, donβt rely on Fast for the final output.