Seedance 2.0 Fast is the better choice
Seedance 2.0 Fast scores higher than Gen-4.5 in every quality category shown. Its biggest lead is in text rendering, and it also is the only model here with audio output.

ByteDance
Seedance 2.0 Fast
- Rank
- #2
- Price per minute
- $7.26/min

Runway
Gen-4.5
- Rank
- #18
- Price per minute
- $7.20/min
Best for
Highest overall score
Seedance 2.0 Fast
Seedance 2.0 Fast leads the overall score by 30.0 points.
The overall score does not measure file reliability.
Best for
More readable text
Seedance 2.0 Fast
Seedance 2.0 Fast leads by 37.2 points.
Long or moving text still needs manual review.
Best for
Lower generation cost
Gen-4.5
Gen-4.5 runs $7.20/min, against $7.26/min for Seedance 2.0 Fast.
Provider prices can change.
Best for
Built-in audio
Seedance 2.0 Fast
Seedance 2.0 Fast generates audio with the video; Gen-4.5 does not.
This comparison does not score audio quality.
Reviewer scores
Scores by category
Seedance 2.0 Fast wins all 13 categories head-to-head. Each bar is the reviewer score out of 100.
Head-to-head scores
13 categories rated head-to-head









