Megaton
#1
ByteDanceSeedance 2.5
#2
AlibabaWan 3.0
#3
ByteDanceSeedance 2.0
#4
Black Forest LabsFLUX 3
#5
GoogleGemini Omni 1.1 Flash

Swipe for more top models

Legacy evaluation · V1

Gen-4.5 vs Infinity Star

By Megaton TeamJuly 22, 2026

Gen-4.5 is the better overall choice over Infinity Star. It scores higher in nearly every quality category shown.

Share
Add as preferred source
Gen-4.5
Infinity Star
Our verdict

Gen-4.5 is the better choice

Gen-4.5 scores higher than Infinity Star in nearly every quality category shown. Its biggest lead is in 2D animation, and it also supports longer clips.

Runway

Runway

Gen-4.5

40.0Overall score
Rank
#13
Price per minute
$7.20/min
FoundationVision (ByteDance)

FoundationVision (ByteDance)

Infinity Star

24.0Overall score
Rank
—
Price per minute
$0.84/min

Best for

Highest overall score

Gen-4.5

Gen-4.5 leads the overall score by 16.0 points.

The overall score does not measure file reliability.

Best for

More readable text

Gen-4.5

Gen-4.5 leads by 28.8 points.

Long or moving text still needs manual review.

Best for

Lower generation cost

Infinity Star

Infinity Star runs $0.84/min, against $7.20/min for Gen-4.5.

Provider prices can change.

82
videos rated
0
measurements
0
ratings
July 22, 2026
last updated

Reviewer scores

Scores by category

Gen-4.5 wins 10 of 11 categories head-to-head. Each bar is the reviewer score out of 100.

Biggest gap2D Animation: Gen-4.5 ahead by 31.3 points.
Closest categoryAnimals: Gen-4.5 ahead by 0.8 points.

Head-to-head scores

11 categories rated head-to-head

Gen-4.5Infinity Star
Physics
37.4
14.5
Prompt Adherence
47.0
48.0
Logic Consistency
35.6
23.8
Scene Consistency
38.1
23.4
Cinematography
44.0
29.6
2D Animation
41.0
9.7
3D Animation
38.5
25.7
Actor Performance
38.0
34.7
Objects
42.4
26.0
Animals
40.2
39.4
Text Fidelity
30.5
1.7

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

Gen-4.5 leads here by 28.8 points.

Matched Text outputs from Gen-4.5 and Infinity Star
Loading video
Gen-4.5
Loading video
Infinity Star

Video test 2

Physics

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

Related category score

Gen-4.5 leads here by 22.9 points.

Matched Physics outputs from Gen-4.5 and Infinity Star
Loading video
Gen-4.5
Loading video
Infinity Star

Video test 3

Cinematography

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

Related category score

Gen-4.5 leads here by 14.4 points.

Matched Cinematography outputs from Gen-4.5 and Infinity Star
Loading video
Gen-4.5
Loading video
Infinity Star

Capabilities

Inputs and outputs

See full Gen-4.5 detailsSee full Infinity Star details
CapabilityGen-4.5Infinity Star
Text inputYesYes
Image inputYesYes
Video inputYesNo
Audio inputNoNo
Image outputNoNo
Audio outputNoNo

FAQ

Common questions

Is Gen-4.5 better than Infinity Star?

Gen-4.5 is better overall and leads most quality categories.

Is Gen-4.5 cheaper than Infinity Star?

Infinity Star costs less at $0.84 per minute, compared with $7.20 for Gen-4.5.

Does Gen-4.5 generate audio?

No, Gen-4.5 does not include audio output.

Does Infinity Star generate audio?

No, Infinity Star does not include audio output.

Which model makes longer clips, Gen-4.5 or Infinity Star?

Gen-4.5 supports longer clips at 10 seconds, compared with 5 seconds for Infinity Star.

Which model scores higher on 2D Animation, Gen-4.5 or Infinity Star?

Gen-4.5 scores higher for 2D animation.

Which model scores higher on Text Fidelity, Gen-4.5 or Infinity Star?

Gen-4.5 scores higher for text rendering.

How are Gen-4.5 and Infinity Star 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

Gen-4.5

Infinity Star

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
Kling 3 Pro vs Gen-4.5Kling AI (Kuaishou)Runway76.0 / 40.0
Veo 3.1 vs Gen-4.5GoogleRunway63.0 / 40.0
Kling 3 Pro vs Veo 3.1Kling AI (Kuaishou)Google76.0 / 63.0

Methodology

How we tested Gen-4.5 and Infinity Star

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 22, 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
Subscribe to the Megaton newsletter

Get weekly AI video rankings, evaluation updates, and industry news delivered to your inbox.