AI video model comparison

Grok 2025 vs Veo 3.1 Fast

By Megaton TeamJuly 22, 2026

Grok 2025 is the better overall choice over Veo 3.1 Fast. It has the higher overall score and costs less.

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Grok 2025
Veo 3.1 Fast

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Our verdict

Grok 2025 is the better choice

Grok 2025 has a higher overall score than Veo 3.1 Fast. Its biggest lead is in 3D animation, and it also costs less.

xAI

xAI

Grok 2025

54.0Overall score
Rank
#11
Price per minute
$4.20/min
Google DeepMind

Google DeepMind

Veo 3.1 Fast

51.0Overall score
Rank
#13
Price per minute
$6.00/min

Best for

Highest overall score

Grok 2025

Grok 2025 leads the overall score by 3.0 points.

The overall score does not measure file reliability.

Best for

More readable text

Veo 3.1 Fast

Veo 3.1 Fast leads by 10.7 points.

Long or moving text still needs manual review.

Best for

Lower generation cost

Grok 2025

Grok 2025 runs $4.20/min, against $6/min for Veo 3.1 Fast.

Provider prices can change.

164
videos rated
4,756
measurements
656
ratings
July 22, 2026
last updated

Reviewer scores

Scores by category

Grok 2025 wins 7 of 14 categories head-to-head. Each bar is the reviewer score out of 100.

Biggest gap3D Animation: Grok 2025 ahead by 52.7 points.
Closest categoryPhysics: Grok 2025 ahead by 0.2 points.

Head-to-head scores

14 categories rated head-to-head

Grok 2025Veo 3.1 Fast
Physics
45.9
45.7
Prompt Adherence
54.5
44.0
Logic Consistency
43.3
41.5
Scene Consistency
66.9
50.7
Cinematography
52.7
53.4
2D Animation
72.5
27.7
3D Animation
67.7
15.0
Anime Animation
39.5
54.3
Human
57.9
55.3
Hands
39.7
77.3
Actor Performance
34.7
56.3
Objects
53.1
57.6
Animals
54.5
55.1
Text Fidelity
37.0
47.7

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.

Grok 2025
43 videos rated · Jul 2026
Veo 3.1 Fast
121 videos rated · Jul 2026

File reliability checks

Playback, framing, and motion stability

Grok 2025Veo 3.1 Fast

Grok 2025's biggest lead: Freeze-free playback, 100.0% versus 93.0%.

Veo 3.1 Fast's biggest lead: Edge stability, 78.0 versus 55.0.

Technical cleanliness
60.0%
74.0%

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

Freeze-free playback
100.0%
93.0%

Clips that play without stalls or frozen frames.

Clean framing
95.0%
92.0%

Clips without unexpected black bars or cropped edges.

Motion stability
35.0
57.0

How consistently surfaces hold their shape and texture while moving.

Edge stability
55.0
78.0

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 3.1 Fast leads here by 10.7 points.

Show the full prompt

Times Square at night: massive LED billboards display rotating ads. COCA-COLA, SAMSUNG, BROADWAY SHOWS.

Text videos generated from the same prompt by Grok 2025 and Veo 3.1 Fast
Grok 2025
Veo 3.1 Fast

Video test 2

Physics

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

Related category score

Grok 2025 leads here by 0.2 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 Grok 2025 and Veo 3.1 Fast
Grok 2025
Veo 3.1 Fast

Video test 3

Cinematography

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

Related category score

Veo 3.1 Fast leads here by 0.6 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 Grok 2025 and Veo 3.1 Fast
Grok 2025
Veo 3.1 Fast

Capabilities

Inputs and outputs

CapabilityGrok 2025Veo 3.1 Fast
Text inputYesYes
Image inputYesYes
Video inputYesYes
Audio inputNoNo
Image outputYesNo
Audio outputYesYes

FAQ

Common questions

Is Grok 2025 better than Veo 3.1 Fast?

Grok 2025 is better overall and leads the broader mix of quality categories.

Is Grok 2025 cheaper than Veo 3.1 Fast?

Grok 2025 costs less at $4.20 per minute, compared with $6 for Veo 3.1 Fast.

Does Grok 2025 generate audio?

Yes, Grok 2025 includes audio output.

Does Veo 3.1 Fast generate audio?

Yes, Veo 3.1 Fast includes audio output.

Which model makes longer clips, Grok 2025 or Veo 3.1 Fast?

Grok 2025 supports longer clips at 15 seconds, compared with 8 seconds for Veo 3.1 Fast.

Which model scores higher on 3D Animation, Grok 2025 or Veo 3.1 Fast?

Grok 2025 scores higher for 3D animation.

Which model scores higher on 2D Animation, Grok 2025 or Veo 3.1 Fast?

Grok 2025 scores higher for 2D animation.

How are Grok 2025 and Veo 3.1 Fast 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 Grok 2025ByteDancexai73.0 / 54.0
Kling 3 Pro vs Grok 2025Klingxai62.0 / 54.0
Seedance 2.0 vs Veo 3.1 FastByteDanceGoogle73.0 / 51.0
Kling 2.6 vs Grok 2025Klingxai60.0 / 54.0
Kling 3 Pro vs Veo 3.1 FastKlingGoogle62.0 / 51.0
Veo 3 vs Grok 2025Googlexai60.0 / 54.0
Grok Imagine 1.0 vs Grok 2025xaixai58.0 / 54.0
Kling 2.6 vs Veo 3.1 FastKlingGoogle60.0 / 51.0
Veo 3 vs Veo 3.1 FastGoogleGoogle60.0 / 51.0
Veo 2 vs Grok 2025Googlexai56.0 / 54.0
Veo 3.1 vs Grok 2025Googlexai56.0 / 54.0
Grok Imagine 1.0 vs Veo 3.1 FastxaiGoogle58.0 / 51.0
PixVerse v5.5 vs Grok 2025PixVersexai55.0 / 54.0
Veo 2 vs Veo 3.1 FastGoogleGoogle56.0 / 51.0
Veo 3.1 vs Veo 3.1 FastGoogleGoogle56.0 / 51.0
Grok 2025 vs Seedance 1.5 ProxaiByteDance54.0 / 53.0
PixVerse v5.5 vs Veo 3.1 FastPixVerseGoogle55.0 / 51.0
Grok 2025 vs Sora 2 ProxaiOpenAI54.0 / 50.0
Seedance 1.5 Pro vs Veo 3.1 FastByteDanceGoogle53.0 / 51.0
Grok 2025 vs Veo 3 FastxaiGoogle54.0 / 48.0
Grok 2025 vs Vidu Q2xaiVidu54.0 / 45.0
Veo 3.1 Fast vs Sora 2 ProGoogleOpenAI51.0 / 50.0
Grok 2025 vs LTX-2 19BxaiLightricks54.0 / 43.0
Veo 3.1 Fast vs Veo 3 FastGoogleGoogle51.0 / 48.0
Grok 2025 vs Gen-4.5xaiRunway54.0 / 40.0
Veo 3.1 Fast vs Vidu Q2GoogleVidu51.0 / 45.0
Grok 2025 vs Pika v2.2 Text-to-VideoxaiPika54.0 / 26.0
Veo 3.1 Fast vs LTX-2 19BGoogleLightricks51.0 / 43.0
Grok 2025 vs Infinity StarxaiFoundationVision54.0 / 24.0
Veo 3.1 Fast vs Gen-4.5GoogleRunway51.0 / 40.0
Veo 3.1 Fast vs Pika v2.2 Text-to-VideoGooglePika51.0 / 26.0
Veo 3.1 Fast vs Infinity StarGoogleFoundationVision51.0 / 24.0

Methodology

How we tested Grok 2025 and Veo 3.1 Fast

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 164 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.