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Legacy evaluation · V2

Seedance 2.0 Fast vs HappyHorse-1.0

By Megaton TeamJuly 25, 2026

Seedance 2.0 Fast is the clear winner over HappyHorse-1.0. It scores higher in nearly every quality category shown and costs less.

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Seedance 2.0 Fast
HappyHorse-1.0
Our verdict

Seedance 2.0 Fast is the clear winner

Seedance 2.0 Fast scores higher than HappyHorse-1.0 in nearly every quality category shown. Its biggest lead is in object generation, and it also costs less.

ByteDance

ByteDance

Seedance 2.0 Fast

70.0Overall score
Rank
—
Price per minute
$4.54/min
Alibaba

Alibaba

HappyHorse-1.0

62.0Overall score
Rank
—
Price per minute
$6.72/min

Best for

Highest overall score

Seedance 2.0 Fast

Seedance 2.0 Fast leads the overall score by 8.0 points.

The overall score does not measure file reliability.

Best for

More readable text

Seedance 2.0 Fast

Seedance 2.0 Fast leads by 2.2 points.

Long or moving text still needs manual review.

Best for

Lower generation cost

Seedance 2.0 Fast

Seedance 2.0 Fast runs $4.54/min, against $6.72/min for HappyHorse-1.0.

Provider prices can change.

235
videos rated
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measurements
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ratings
July 25, 2026
last updated

Reviewer scores

Scores by category

Seedance 2.0 Fast wins 12 of 13 categories head-to-head. Each bar is the reviewer score out of 100.

Biggest gapObjects: Seedance 2.0 Fast ahead by 14.2 points.
Closest category3D Animation: Seedance 2.0 Fast ahead by 1.3 points.

Head-to-head scores

13 categories rated head-to-head

Seedance 2.0 FastHappyHorse-1.0
Physics
57.8
50.9
Prompt Adherence
68.4
71.8
Logic Consistency
68.1
62.4
Scene Consistency
54.5
52.1
Cinematography
74.7
66.8
Taste
71.7
57.5
2D Animation
66.8
57.3
3D Animation
65.7
64.4
Human
70.8
67.2
Actor Performance
73.3
62.8
Objects
76.9
62.7
Animals
73.5
69.7
Text Fidelity
67.7
65.5

Side-by-side video tests

Matched outputs, side by side

Each row uses the same evaluation input for both models. The underlying prompt and decision record are reserved for the full report.

Video test 1

Text

Spelling, letter shape, spacing, and whether the words remain stable while the scene moves.

Related category score

Seedance 2.0 Fast leads here by 2.2 points.

Matched Text outputs from Seedance 2.0 Fast and HappyHorse-1.0
Loading video
Seedance 2.0 Fast
Loading video
HappyHorse-1.0

Video test 2

Physics

Weight, contact, momentum, and whether objects continue to behave consistently from frame to frame.

Related category score

Seedance 2.0 Fast leads here by 6.9 points.

Matched Physics outputs from Seedance 2.0 Fast and HappyHorse-1.0
Loading video
Seedance 2.0 Fast
Loading video
HappyHorse-1.0

Video test 3

Cinematography

Framing, camera movement, lighting continuity, and whether the visual treatment follows the prompt.

Related category score

Seedance 2.0 Fast leads here by 8.0 points.

Matched Cinematography outputs from Seedance 2.0 Fast and HappyHorse-1.0
Loading video
Seedance 2.0 Fast
Loading video
HappyHorse-1.0

Capabilities

Inputs and outputs

See full Seedance 2.0 Fast detailsSee full HappyHorse-1.0 details
CapabilitySeedance 2.0 FastHappyHorse-1.0
Text inputYesYes
Image inputYesYes
Video inputYesYes
Audio inputYesYes
Image outputNoNo
Audio outputYesYes

FAQ

Common questions

Is Seedance 2.0 Fast better than HappyHorse-1.0?

Seedance 2.0 Fast is better overall and leads most quality categories.

Is Seedance 2.0 Fast cheaper than HappyHorse-1.0?

Seedance 2.0 Fast costs less at $7.26 per minute, compared with $8.40 for HappyHorse-1.0.

Does Seedance 2.0 Fast generate audio?

Yes, Seedance 2.0 Fast includes audio output.

Does HappyHorse-1.0 generate audio?

Yes, HappyHorse-1.0 includes audio output.

Which model makes longer clips, Seedance 2.0 Fast or HappyHorse-1.0?

Both models list a 15-second maximum clip duration.

Which model scores higher on Objects, Seedance 2.0 Fast or HappyHorse-1.0?

Seedance 2.0 Fast scores higher for object generation.

Which model scores higher on Taste, Seedance 2.0 Fast or HappyHorse-1.0?

Seedance 2.0 Fast scores higher for visual taste.

How are Seedance 2.0 Fast and HappyHorse-1.0 compared?

Megaton gives both models the same prompts and compares the resulting videos. Price, audio support, and maximum clip length are also checked.

Continue researching

Seedance 2.0 Fast

HappyHorse-1.0

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Methodology

How we tested Seedance 2.0 Fast and HappyHorse-1.0

We score two things separately: how good the video looks to a reviewer, and how reliably the file itself holds up. A model can make great-looking footage and still deliver clips with freezes, bad framing, or unstable motion.

We test every model with v-benchmark v2.0, our benchmark for AI video models — the same prompts, professional reviewers, and automated reliability checks behind every score here.

Reviewer scores
Both models receive the same prompts. Professional reviewers score how well each video follows the prompt and handles motion, composition, people, objects, animals, animation, and on-screen text. Scores use a 0-100 scale.
File reliability
Automated checks review 0 clips for freezes, bad framing, compression problems, unstable motion, distorted geometry, exposure problems, and invalid file properties.
Missing scores
Categories with a score for only one model are shown but excluded from the head-to-head win count. Price and generation speed stay separate because they use different units.
Last updated
Reviewer scores and rankings use results from July 25, 2026. Reliability results use the latest completed test for each model. Provider prices and rankings can change.
How v-benchmark v2.0 worksView the complete leaderboardRead model evaluation reports
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