Megaton
Megaton
#1
ByteDanceSeedance 2.5
#2
ByteDanceSeedance 2.0
#3
Black Forest LabsFLUX 3
#4
Kling AI (Kuaishou)Kling 3 Pro
#5
MiniMax Hailuo 03

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AI video model comparison

Seedance 2.0 vs Gen-4.5

By Megaton TeamAugust 11, 2026

Seedance 2.0 is the better overall choice over Gen-4.5. It scores higher in every quality category shown.

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Seedance 2
Gen-4.5

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Our verdict

Seedance 2.0 is the better choice

Seedance 2.0 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

ByteDance

Seedance 2

73.0Overall score
Rank
#2
Price per minute
$7.26/min
Runway

Runway

Gen-4.5

40.0Overall score
Rank
#10
Price per minute
$7.20/min

Best for

Highest overall score

Seedance 2

Seedance 2 leads the overall score by 33.0 points.

The overall score does not measure file reliability.

Best for

More readable text

Seedance 2

Seedance 2 leads by 54.5 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.

Provider prices can change.

Best for

Built-in audio

Seedance 2

Seedance 2 generates audio with the video; Gen-4.5 does not.

This comparison does not score audio quality.

236
videos rated
6,608
measurements
944
ratings
August 11, 2026
last updated

Reviewer scores

Scores by category

Seedance 2 wins all 13 categories head-to-head. Each bar is the reviewer score out of 100.

Biggest gapText Fidelity: Seedance 2 ahead by 54.5 points.
Closest categoryObjects: Seedance 2 ahead by 20.9 points.

Head-to-head scores

13 categories rated head-to-head

Seedance 2Gen-4.5
Physics
68.3
37.4
Prompt Adherence
76.3
47.0
Logic Consistency
61.0
35.6
Scene Consistency
73.4
38.1
Cinematography
84.1
44.0
2D Animation
69.7
41.0
3D Animation
82.5
38.5
Anime Animation
78.0
52.5
Hands
82.7
48.0
Actor Performance
86.0
38.0
Objects
63.3
42.4
Animals
78.0
40.2
Text Fidelity
85.0
30.5

Technical reliability

How reliably does each model deliver clean video?

These checks look for freezes, bad framing, compression problems, and unstable motion. They are kept separate from the reviewer scores above.

Seedance 2
120 videos rated · Jun 2026
Gen-4.5
116 videos rated · Jul 2026

File reliability checks

Playback, framing, and motion stability

Seedance 2Gen-4.5

Seedance 2's biggest lead: Motion stability, 76.0 versus 43.0.

Gen-4.5's biggest lead: Freeze-free playback, 97.0% versus 96.0%.

Technical cleanliness
70.0%
62.0%

Clips with no freezes, bad framing, or severe compression problems.

Freeze-free playback
96.0%
97.0%

Clips that play without stalls or frozen frames.

Clean framing
98.0%
91.0%

Clips without unexpected black bars or cropped edges.

Motion stability
76.0
43.0

How consistently surfaces hold their shape and texture while moving.

Edge stability
72.0
66.0

How consistently object outlines remain clean while moving.

Side-by-side video tests

Same prompt, side by side

Both videos in each row were generated from the prompt shown. Watch them side by side to compare how each model handled the same request.

Video test 1

Text

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

Related category score

Seedance 2 leads here by 54.5 points.

Show the full prompt

Street-level Tokyo: kanji, hiragana, katakana everywhere. Shop signs, vending machines, posters we follow a woman walking down the street.

Text videos generated from the same prompt by Seedance 2 and Gen-4.5
Loading video
Seedance 2
Loading video
Gen-4.5

Video test 2

Physics

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

Related category score

Seedance 2 leads here by 30.9 points.

Show the full prompt

Close-up: a match strikes, flares to life, lights a candle. The match head, the flame birth, the wick catching. Material accuracy across wood, phosphorus, wax, fire.

Physics videos generated from the same prompt by Seedance 2 and Gen-4.5
Loading video
Seedance 2
Loading video
Gen-4.5

Video test 3

Cinematography

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

Related category score

Seedance 2 leads here by 40.1 points.

Show the full prompt

One-take chase: camera leads a woman sprinting through a crowded market, she's looking back in fear, we never see what's chasing her. Handheld urgency, motivated motion, ducking under obstacles.

Cinematography videos generated from the same prompt by Seedance 2 and Gen-4.5
Loading video
Seedance 2
Loading video
Gen-4.5

Capabilities

Inputs and outputs

See full Seedance 2 detailsSee full Gen-4.5 details
CapabilitySeedance 2Gen-4.5
Text inputYesYes
Image inputYesYes
Video inputYesYes
Audio inputYesNo
Image outputNoNo
Audio outputYesNo

FAQ

Common questions

Is Seedance 2.0 better than Gen-4.5?

Seedance 2.0 is better overall and scores higher in every quality category.

Is Seedance 2.0 cheaper than Gen-4.5?

Gen-4.5 costs less at $7.20 per minute, compared with $9.07 for Seedance 2.0.

Does Seedance 2.0 generate audio?

Yes, Seedance 2.0 includes audio output.

Does Gen-4.5 generate audio?

No, Gen-4.5 does not include audio output.

Which model makes longer clips, Seedance 2.0 or Gen-4.5?

Seedance 2.0 supports longer clips at 15 seconds, compared with 10 seconds for Gen-4.5.

Which model scores higher on Text Fidelity, Seedance 2.0 or Gen-4.5?

Seedance 2.0 scores higher for text rendering.

Which model scores higher on Actor Performance, Seedance 2.0 or Gen-4.5?

Seedance 2.0 scores higher for actor performance.

How are Seedance 2.0 and Gen-4.5 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

Gen-4.5

More comparisons

More AI video model comparisons

Browse more head-to-head results, including scores, prices, and side-by-side video tests.

Other AI video model comparison pages
ComparisonProvidersOverall scores
Seedance 2.0 vs Kling 3 ProByteDanceKling AI (Kuaishou)73.0 / 76.0
Seedance 2.0 vs Veo 3.1ByteDanceGoogle DeepMind73.0 / 63.0
Kling 3 Pro vs Gen-4.5Kling AI (Kuaishou)Runway76.0 / 40.0
Veo 3.1 vs Gen-4.5Google DeepMindRunway63.0 / 40.0
Kling 3 Pro vs Veo 3.1Kling AI (Kuaishou)Google DeepMind76.0 / 63.0

Methodology

How we tested Seedance 2 and Gen-4.5

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.

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 236 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 August 11, 2026. Reliability results use the latest completed test for each model. Provider prices and rankings can change.
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