Megaton
#1
ByteDanceSeedance 2.5
#2
ByteDanceSeedance 2.0
#3
Black Forest LabsFLUX 3
#4
GoogleGemini Omni 1.1 Flash
#5
Kling AI (Kuaishou)Kling 3 Pro

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V-Benchmark v2.0 comparison

FLUX 3 vs Gen-4.5

By Megaton TeamAugust 28, 2026

FLUX 3 leads this v-benchmark v2 comparison on the published overall score.

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FLUX 3 evaluation example
FLUX 3
Gen-4.5 evaluation example
Gen-4.5
Our verdict

FLUX 3 leads

FLUX 3 leads this v-benchmark v2 comparison on the published overall score.

Black Forest Labs

Black Forest Labs

FLUX 3

76.5Overall score
Rank
#3
Price per minute
$9.18/min
Runway

Runway

Gen-4.5

60.5Overall score
Rank
#12
Price per minute
$7.20/min

Best for

Highest overall score

FLUX 3

FLUX 3 leads the overall score by 16.0 points.

The overall score does not measure file reliability.

Best for

More readable text

FLUX 3

FLUX 3 leads by 35.2 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 $9.18/min for FLUX 3.

Provider prices can change.

Best for

Built-in audio

FLUX 3

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

This comparison does not score audio quality.

0
videos rated
0
measurements
0
ratings
August 28, 2026
last updated

Reviewer scores

Scores by category

FLUX 3 wins all 13 categories head-to-head. Each bar is the reviewer score out of 100.

Biggest gapText Fidelity: FLUX 3 ahead by 35.2 points.
Closest categoryCinematography: FLUX 3 ahead by 1.4 points.

Head-to-head scores

13 categories rated head-to-head

FLUX 3Gen-4.5
Physics
70.6
38.8
Prompt Adherence
87.1
76.0
Logic Consistency
80.9
72.7
Scene Consistency
94.8
78.1
Cinematography
71.4
70.0
Taste
65.0
49.7
2D Animation
60.4
47.5
3D Animation
66.0
44.0
Human
73.7
67.4
Actor Performance
68.0
63.0
Objects
83.8
74.4
Animals
75.7
61.4
Text Fidelity
82.4
47.2

Capabilities

Inputs and outputs

See full FLUX 3 detailsSee full Gen-4.5 details
CapabilityFLUX 3Gen-4.5
Text inputYesYes
Image inputNoYes
Video inputNoYes
Audio inputNoNo
Image outputNoNo
Audio outputYesNo

FAQ

Common questions

Is FLUX 3 better than Gen-4.5?

Overall, yes. FLUX 3 scores 76.5 to Gen-4.5's 60.5 and wins 13 of 13 rated categories. Gen-4.5 can still be the better fit for specific work — the category scores above show where.

Is FLUX 3 cheaper than Gen-4.5?

No — Gen-4.5 is the cheaper option at $7.20/min, versus $9.18/min for FLUX 3.

Which makes longer clips, FLUX 3 or Gen-4.5?

Gen-4.5 — up to 10 seconds per clip, versus 5 seconds for FLUX 3.

Does FLUX 3 generate audio?

Yes — FLUX 3 generates audio together with the video, in the same file.

Does Gen-4.5 generate audio?

No — Gen-4.5 outputs silent video; you'd add sound separately.

Is FLUX 3 or Gen-4.5 better for text fidelity?

FLUX 3 leads text fidelity, by 35.2 points.

Is FLUX 3 or Gen-4.5 better for physics?

FLUX 3 leads physics, by 31.8 points.

Is FLUX 3 or Gen-4.5 better for 3d animation?

FLUX 3 leads 3d animation, by 22.0 points.

Is FLUX 3 or Gen-4.5 better for scene consistency?

FLUX 3 leads scene consistency, by 16.6 points.

Is FLUX 3 or Gen-4.5 better for taste?

FLUX 3 leads taste, by 15.3 points.

Is FLUX 3 or Gen-4.5 better for animals?

FLUX 3 leads animals, by 14.3 points.

Is FLUX 3 or Gen-4.5 better for 2d animation?

FLUX 3 leads 2d animation, by 12.9 points.

Is FLUX 3 or Gen-4.5 better for prompt adherence?

FLUX 3 leads prompt adherence, by 11.0 points.

Is FLUX 3 or Gen-4.5 better for objects?

FLUX 3 leads objects, by 9.4 points.

Is FLUX 3 or Gen-4.5 better for logic consistency?

FLUX 3 leads logic consistency, by 8.2 points.

How are FLUX 3 and Gen-4.5 tested?

Both models run the same prompts. Professional reviewers score each video 0–100 on how well it follows the prompt and handles motion, people, objects, animation, and text, while automated checks flag freezes, bad framing, and unstable motion. This matchup draws on 0 rated videos and 0 reviewer ratings.

Continue researching

FLUX 3

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 2.5 vs FLUX 3ByteDanceBlack Forest Labs87.0 / 77.0
Seedance 2.0 vs FLUX 3ByteDanceBlack Forest Labs78.0 / 77.0
FLUX 3 vs Gemini Omni 1.1 FlashBlack Forest LabsGoogle77.0 / 76.0
FLUX 3 vs Kling 3 ProBlack Forest LabsKling AI (Kuaishou)77.0 / 76.0
FLUX 3 vs MiniMax Hailuo 03Black Forest LabsMiniMax77.0 / 75.0
FLUX 3 vs MiniMax H3 MaxBlack Forest Labsfal.ai77.0 / 75.0
FLUX 3 vs Gemini Omni FlashBlack Forest LabsGoogle77.0 / 70.0
FLUX 3 vs Kling 3 StandardBlack Forest LabsKling AI (Kuaishou)77.0 / 69.0
FLUX 3 vs Seedance 2.0 MiniBlack Forest LabsByteDance77.0 / 69.0
Seedance 2.5 vs Gen-4.5ByteDanceRunway87.0 / 61.0
FLUX 3 vs Veo 3.1Black Forest LabsGoogle77.0 / 63.0
Seedance 2.0 vs Gen-4.5ByteDanceRunway78.0 / 61.0
FLUX 3 vs LTX 2.3 22BBlack Forest LabsLightricks77.0 / 52.0
Gemini Omni 1.1 Flash vs Gen-4.5GoogleRunway76.0 / 61.0
Kling 3 Pro vs Gen-4.5Kling AI (Kuaishou)Runway76.0 / 61.0
MiniMax Hailuo 03 vs Gen-4.5MiniMaxRunway75.0 / 61.0
MiniMax H3 Max vs Gen-4.5fal.aiRunway75.0 / 61.0
Gemini Omni Flash vs Gen-4.5GoogleRunway70.0 / 61.0
Kling 3 Standard vs Gen-4.5Kling AI (Kuaishou)Runway69.0 / 61.0
Seedance 2.0 Mini vs Gen-4.5ByteDanceRunway69.0 / 61.0
Veo 3.1 vs Gen-4.5GoogleRunway63.0 / 61.0
Gen-4.5 vs LTX 2.3 22BRunwayLightricks61.0 / 52.0
Seedance 2.5 vs Seedance 2.0ByteDanceByteDance87.0 / 78.0
Seedance 2.5 vs Gemini Omni 1.1 FlashByteDanceGoogle87.0 / 76.0
Seedance 2.0 vs Gemini Omni 1.1 FlashByteDanceGoogle78.0 / 76.0
Seedance 2.5 vs Kling 3 ProByteDanceKling AI (Kuaishou)87.0 / 76.0
Seedance 2.0 vs Kling 3 ProByteDanceKling AI (Kuaishou)78.0 / 76.0
Seedance 2.5 vs MiniMax Hailuo 03ByteDanceMiniMax87.0 / 75.0
Seedance 2.0 vs MiniMax Hailuo 03ByteDanceMiniMax78.0 / 75.0
Seedance 2.5 vs MiniMax H3 MaxByteDancefal.ai87.0 / 75.0
Gemini Omni 1.1 Flash vs Kling 3 ProGoogleKling AI (Kuaishou)76.0 / 76.0
Seedance 2.0 vs MiniMax H3 MaxByteDancefal.ai78.0 / 75.0

Methodology

How we tested FLUX 3 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.

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 August 28, 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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