AI video model comparison

Veo 3 Fast vs Gen-4.5

By Megaton TeamJuly 22, 2026

Veo 3 Fast is the better overall choice over Gen-4.5. It scores higher in nearly every quality category shown and costs less.

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Veo 3 Fast
Gen-4.5

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Our verdict

Veo 3 Fast is the better choice

Veo 3 Fast scores higher than Gen-4.5 in nearly every quality category shown. Its biggest lead is in actor performance, and it also costs less.

Google DeepMind

Google DeepMind

Veo 3 Fast

48.0Overall score
Rank
#15
Price per minute
$6.00/min
Runway

Runway

Gen-4.5

40.0Overall score
Rank
#18
Price per minute
$7.20/min

Best for

Highest overall score

Veo 3 Fast

Veo 3 Fast leads the overall score by 8.0 points.

The overall score does not measure file reliability.

Best for

More readable text

Veo 3 Fast

Veo 3 Fast leads by 14.5 points.

Long or moving text still needs manual review.

Best for

Lower generation cost

Veo 3 Fast

Veo 3 Fast runs $6/min, against $7.20/min for Gen-4.5.

Provider prices can change.

Best for

Built-in audio

Veo 3 Fast

Veo 3 Fast generates audio with the video; Gen-4.5 does not.

This comparison does not score audio quality.

238
videos rated
6,786
measurements
952
ratings
July 22, 2026
last updated

Reviewer scores

Scores by category

Veo 3 Fast wins 10 of 13 categories head-to-head. Each bar is the reviewer score out of 100.

Biggest gapActor Performance: Veo 3 Fast ahead by 18.7 points.
Closest categoryPrompt Adherence: Veo 3 Fast ahead by 1.0 points.

Head-to-head scores

13 categories rated head-to-head

Veo 3 FastGen-4.5
Physics
42.0
37.4
Prompt Adherence
48.0
47.0
Logic Consistency
40.7
35.6
Scene Consistency
50.0
38.1
Cinematography
48.7
44.0
2D Animation
37.7
41.0
3D Animation
51.3
38.5
Anime Animation
43.0
52.5
Hands
44.7
48.0
Actor Performance
56.7
38.0
Objects
53.9
42.4
Animals
46.0
40.2
Text Fidelity
45.0
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.

Veo 3 Fast
122 videos rated · Jul 2026
Gen-4.5
116 videos rated · Jul 2026

File reliability checks

Playback, framing, and motion stability

Veo 3 FastGen-4.5

Veo 3 Fast's biggest lead: Motion stability, 66.0 versus 43.0.

Gen-4.5's biggest lead: Technical cleanliness, 62.0% versus 49.0%.

Technical cleanliness
49.0%
62.0%

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

Freeze-free playback
88.0%
97.0%

Clips that play without stalls or frozen frames.

Clean framing
80.0%
91.0%

Clips without unexpected black bars or cropped edges.

Motion stability
66.0
43.0

How consistently surfaces hold their shape and texture while moving.

Edge stability
80.0
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

Veo 3 Fast leads here by 14.5 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 Veo 3 Fast and Gen-4.5
Veo 3 Fast
Gen-4.5

Video test 2

Physics

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

Related category score

Veo 3 Fast leads here by 4.6 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 Veo 3 Fast and Gen-4.5
Veo 3 Fast
Gen-4.5

Video test 3

Cinematography

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

Related category score

Veo 3 Fast leads here by 4.7 points.

Show the full prompt

POV from inside a car trunk looking up at three figures who've just opened it. Wide lens, dramatic lighting from below, the perspective is specific and iconic.

Cinematography videos generated from the same prompt by Veo 3 Fast and Gen-4.5
Veo 3 Fast
Gen-4.5

Capabilities

Inputs and outputs

CapabilityVeo 3 FastGen-4.5
Text inputYesYes
Image inputYesYes
Video inputNoYes
Audio inputNoNo
Image outputNoNo
Audio outputYesNo

FAQ

Common questions

Is Veo 3 Fast better than Gen-4.5?

Veo 3 Fast is better overall and leads most quality categories.

Is Veo 3 Fast cheaper than Gen-4.5?

Veo 3 Fast costs less at $6 per minute, compared with $7.20 for Gen-4.5.

Does Veo 3 Fast generate audio?

Yes, Veo 3 Fast includes audio output.

Does Gen-4.5 generate audio?

No, Gen-4.5 does not include audio output.

Which model makes longer clips, Veo 3 Fast or Gen-4.5?

Gen-4.5 supports longer clips at 10 seconds, compared with 8 seconds for Veo 3 Fast.

Which model scores higher on Actor Performance, Veo 3 Fast or Gen-4.5?

Veo 3 Fast scores higher for actor performance.

Which model scores higher on Text Fidelity, Veo 3 Fast or Gen-4.5?

Veo 3 Fast scores higher for text rendering.

How are Veo 3 Fast 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.

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 Veo 3 FastByteDanceGoogle73.0 / 48.0
Kling 3 Pro vs Veo 3 FastKlingGoogle62.0 / 48.0
Seedance 2.0 vs Gen-4.5ByteDanceRunway73.0 / 40.0
Kling 2.6 vs Veo 3 FastKlingGoogle60.0 / 48.0
Veo 3 vs Veo 3 FastGoogleGoogle60.0 / 48.0
Kling 3 Pro vs Gen-4.5KlingRunway62.0 / 40.0
Grok Imagine 1.0 vs Veo 3 FastxaiGoogle58.0 / 48.0
Kling 2.6 vs Gen-4.5KlingRunway60.0 / 40.0
Veo 2 vs Veo 3 FastGoogleGoogle56.0 / 48.0
Veo 3 vs Gen-4.5GoogleRunway60.0 / 40.0
Veo 3.1 vs Veo 3 FastGoogleGoogle56.0 / 48.0
Grok Imagine 1.0 vs Gen-4.5xaiRunway58.0 / 40.0
PixVerse v5.5 vs Veo 3 FastPixVerseGoogle55.0 / 48.0
Grok 2025 vs Veo 3 FastxaiGoogle54.0 / 48.0
Veo 2 vs Gen-4.5GoogleRunway56.0 / 40.0
Veo 3.1 vs Gen-4.5GoogleRunway56.0 / 40.0
Seedance 1.5 Pro vs Veo 3 FastByteDanceGoogle53.0 / 48.0
PixVerse v5.5 vs Gen-4.5PixVerseRunway55.0 / 40.0
Veo 3.1 Fast vs Veo 3 FastGoogleGoogle51.0 / 48.0
Grok 2025 vs Gen-4.5xaiRunway54.0 / 40.0
Sora 2 Pro vs Veo 3 FastOpenAIGoogle50.0 / 48.0
Seedance 1.5 Pro vs Gen-4.5ByteDanceRunway53.0 / 40.0
Veo 3 Fast vs Vidu Q2GoogleVidu48.0 / 45.0
Veo 3.1 Fast vs Gen-4.5GoogleRunway51.0 / 40.0
Sora 2 Pro vs Gen-4.5OpenAIRunway50.0 / 40.0
Veo 3 Fast vs LTX-2 19BGoogleLightricks48.0 / 43.0
Veo 3 Fast vs Pika v2.2 Text-to-VideoGooglePika48.0 / 26.0
Vidu Q2 vs Gen-4.5ViduRunway45.0 / 40.0
LTX-2 19B vs Gen-4.5LightricksRunway43.0 / 40.0
Veo 3 Fast vs Infinity StarGoogleFoundationVision48.0 / 24.0
Gen-4.5 vs Pika v2.2 Text-to-VideoRunwayPika40.0 / 26.0
Gen-4.5 vs Infinity StarRunwayFoundationVision40.0 / 24.0

Methodology

How we tested Veo 3 Fast 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 238 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.