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Veo 3.1 Fast vs Gen-4.5
Veo 3.1 Fast edges out Gen-4.5 overall (Veo 3.1 Fast 51.0 vs Gen-4.5 40.0.) Veo 3.1 Fast looks stronger on Humans, Text, Objects and Animals, Physics. The main tradeoffs are in Animation, Cost and Speed, where Gen-4.5 tends to score better.
Veo 3.1 FastGoogle | Gen-4.5Runway |
|---|---|
Good for
| Good for
|
Bad for
| Bad for
|
Modalities
| Capability | Veo 3.1 Fast | Gen-4.5 |
|---|---|---|
| Text input | ||
| Image input | ||
| Video input | ||
| Audio input | ||
| Image output | ||
| Audio output |
Providers

Provider
Google
google-veo
Google is the platform that serves Veo 3.1 Fast requests, pricing, and availability.

Provider
Runway
runway-ml
Runway is the platform that serves Gen-4.5 requests, pricing, and availability.
Physics
How well the model simulates real-world physics: gravity, momentum, collisions, and natural movement.
Veo 3.1 Fast leads on physics (+8.3), with a measurable advantage over Gen-4.5. The clearest separation is on Physics (+8.3). Across the other sub-metrics in this group, the gap is smaller but generally consistent with the overall direction. If physics is a priority for your prompts, Veo 3.1 Fast is the safer pick here.
| Metric | Veo 3.1 Fast | Gen-4.5 |
|---|---|---|
| Physics | 45.7 | 37.4 |
Prompt Comparisons
Physics
Prompt
Stylized art-direction motion piece, locked frontal medium shot on a classical marble bust set against a saturated cinnabar-red backdrop, a crown of glowing orange silk ribbons and tiny sparks swirling above its hair. The stone remains undamaged beneath the kinetic light. Hard side key light carving each curl in shadow, gentle smoke-like haze rising past the frame, theatrical illumination.
Veo 3.1 Fast
vs
Gen-4.5
Physics
Prompt
Surrealist cinematic locked wide, foreground a single small white rabbit sitting perfectly still in a hayfield, ears twitching as a tall white farmhouse behind it is engulfed in large flames. Tiny paper flecks drift, the rabbit ignores them, grass swaying in the warm draft. Saturated 35mm film grade, painterly composition, impossible calm.
Veo 3.1 Fast
vs
Gen-4.5
Physics
Prompt
Camera above water, 3/4 portrait of a young woman floating in a body of water, her entire body submerged except for her face, a glassy surface with cushioned headphones on, eyes serenely closed, her face haloed by cornflowers and chrysanthemums floating on the surface slowly orbiting in the current. Bubbles trace lazy arcs upward, dappled light fracturing across her freckled skin. Deep cobalt and violet palette, no struggle, only the unhurried weightlessness of complete calm.
Veo 3.1 Fast
vs
Gen-4.5
Prompt and Logic
Measures how accurately the model follows prompts and maintains logical consistency throughout the video.
Veo 3.1 Fast leads on prompt and logic (+5.2), with a measurable advantage over Gen-4.5. The clearest separation is on Scene Consistency (+12.6). Across the other sub-metrics in this group, the gap is smaller but generally consistent with the overall direction. If prompt and logic is a priority for your prompts, Veo 3.1 Fast is the safer pick here.
| Metric | Veo 3.1 Fast | Gen-4.5 |
|---|---|---|
| Prompt Adherence | 44.0 | 47.0 |
| Logic Consistency | 41.5 | 35.6 |
| Scene Consistency | 50.7 | 38.1 |
Prompt Comparisons
Prompt Adherence
Prompt
Anime walking-shot in the style of a quiet contemporary anime film, low POV camera tracking forward over a dirt road, framing a person's worn sneakers and beige cargo pants stepping in steady rhythm. Ahead, a small valley town spills downhill under a blazing orange sunset streaked with telephone lines and clouds. Painterly clouds with rim-lit edges, hand-drawn dust puffs at each step, the kind of contemplative end-of-day walk that doesn't need narration.
Veo 3.1 Fast
vs
Gen-4.5
Prompt Adherence
Prompt
Cinematic establishing shot, very wide low-angle on a multi-story bipedal war machine standing motionless mid-stride in a sea of swaying golden wheat, its panels weathered and seared, sensor lights pulsing in slow amber blinks. The sun bleeds across the horizon behind it, throwing a 200-meter silhouette across the stalks. Lens flares streak the frame, distant farmhouse smoke curling, the held breath of pastoral apocalypse, Villeneuve color grade.
Veo 3.1 Fast
vs
Gen-4.5
Prompt Adherence
Prompt
Classic cinematic homage, soaring wide shot of a colossal gorilla clinging to the silver tip of a deco skyscraper, one massive fist raised at three biplanes banking around it in tight figure-eights. Below, a sprawling 1930s metropolis bakes in afternoon haze, propeller drone audible. Hybrid black-and-white-meets-color grade, fine 35mm grain, the iconic theatrical scale of an old-school spectacle staged with modern fidelity. ---
Veo 3.1 Fast
vs
Gen-4.5
Aesthetics
Visual quality including cinematography, artistic taste, and overall production value.
Veo 3.1 Fast leads on aesthetics (+4.8), with a measurable advantage over Gen-4.5. The clearest separation is on Cinematography (+9.4). Across the other sub-metrics in this group, the gap is smaller but generally consistent with the overall direction. If aesthetics is a priority for your prompts, Veo 3.1 Fast is the safer pick here.
| Metric | Veo 3.1 Fast | Gen-4.5 |
|---|---|---|
| Cinematography | 53.4 | 44.0 |
| Taste | — | — |
| Quality | 0.5 | 0.3 |
Prompt Comparisons
Cinematography
Prompt
Extreme wide-angle 16mm-style fisheye, locked-off on the bow of a tall ship as an adult sailor crouches near the camera, the bowsprit and rigging curving around him in distorted arcs, gray Atlantic swell heaving behind. Wind whips his curls, ropes thump against masts. Heavy practical grain, vignetted edges, desaturated blues and bone whites, archival expedition film texture.
Veo 3.1 Fast
vs
Gen-4.5
Cinematography
Prompt
Cinematic medium-wide tracking shot through a sunlit primeval forest, a robed rider sidesaddle on a pale long-maned steed picking its way slowly between mossy oaks, dust motes hanging in cathedral shafts of light. The animal exhales, mane lifting in a soft updraft, her gaze fixed gently forward. Lush emerald-and-amber grade, anamorphic compression, the unhurried pace of a fable, no soundtrack but birdsong and hooffalls on leaf litter. ---
Veo 3.1 Fast
vs
Gen-4.5
Cinematography
Prompt
70s Kodachrome-grain motion picture footage, telephoto compression tracking shot of an adult runner in saffron shorts moving through chest-high wheat alongside a long-haired white farm dog, both bounding in syncopated leaps. Cobalt cloudless sky, golden stalks lit from behind, a hint of overexposure flaring the highlights. Slight gate weave, soft anamorphic flares, the unhurried freedom of a quiet Sunday afternoon.
Veo 3.1 Fast
vs
Gen-4.5
Animation
Performance on animated content styles including 2D, 3D, and anime-style animation.
Gen-4.5 leads on animation (+11.7), with a measurable advantage over Veo 3.1 Fast. The clearest separation is on 3D Animation (+23.5). Across the other sub-metrics in this group, the gap is smaller but generally consistent with the overall direction. If animation is a priority for your prompts, Gen-4.5 is the safer pick here.
| Metric | Veo 3.1 Fast | Gen-4.5 |
|---|---|---|
| 2D Animation | 27.7 | 41.0 |
| 3D Animation | 15.0 | 38.5 |
| Anime Animation | 54.3 | 52.5 |
Prompt Comparisons
3D Animation
Prompt
Stylized 3D animated sequence, slow tracking shot following a hefty woolly bovine sauntering down a narrow aisle of an antique porcelain boutique, glass shelves crammed with delicate vases on either side. Each heavy footstep makes the floorboards tremble, lamps swaying, a single vase teetering and almost falling. Warm amber gallery lighting, plush carpet underfoot, the held-breath tension of inevitable collision, animated with deliberate weight and timing.
Veo 3.1 Fast
vs
Gen-4.5
3D Animation
Prompt
Original CG kitchen-comedy shot, medium frontal framing on a flustered purple many-armed alien chef in a starched white toque managing eight saucepans at once, extra arms darting between burners, ladles, and seasoning shakers. Steam rises in choreographed plumes, garnish flies in arcs, enormous yellow eyes darting between tasks. Stainless-steel kitchen behind, rim-lit by overhead heat lamps, lively comedic timing of a dinner rush at peak chaos.
Veo 3.1 Fast
vs
Gen-4.5
Anime Animation
Prompt
Soft slice-of-life anime moment, low-angle medium close-up of two college-aged friends resting in tall grass, one with auburn hair leaning into frame as the breeze moves a loose strand across the other friend’s cheek. He blinks up and smiles quietly. Warm afternoon sun filters through a green canopy, lens flare wisps, painted bokeh of distant hills, the suspended hush of a tender unspoken moment.
Veo 3.1 Fast
vs
Gen-4.5
Humans
Accuracy of human rendering including body proportions, hand details, and realistic actor performances.
Veo 3.1 Fast leads on humans (+23.8), with a measurable advantage over Gen-4.5. The clearest separation is on Hands (+29.3). Across the other sub-metrics in this group, the gap is smaller but generally consistent with the overall direction. If humans is a priority for your prompts, Veo 3.1 Fast is the safer pick here.
| Metric | Veo 3.1 Fast | Gen-4.5 |
|---|---|---|
| Human | 55.3 | — |
| Hands | 77.3 | 48.0 |
| Actor Performance | 56.3 | 38.0 |
Prompt Comparisons
Human
Prompt
Cinematic wide shot, low angle on a young woman in flowing black archival dress and round sunglasses perched atop a sprinting ostrich across a flat ochre desert, one arm raised triumphantly as she rears back with a wild laugh. Wind whips her veil and the bird’s feathers in unison, sand churned into a long contrail behind. Saturated tones, anamorphic flares, deliberate absurd grandeur.
Veo 3.1 Fast
vs
Gen-4.5
Human
Prompt
Lo-fi anime study, side tracking shot of a young woman in a teal track jacket jogging steadily down a hazy hillside boulevard at golden hour, headphones on, ponytail bouncing in rhythm. The city stretches behind her in painterly silhouettes, smog turning the light strawberry-orange. Hand-painted gradients, limited animation on twos, calm exhale visible in cooler air, the meditative loop of an evening run.
Veo 3.1 Fast
vs
Gen-4.5
Human
Prompt
Stylized fashion campaign motion piece, locked symmetrical wide on a young man in pastel sportswear lounging on a single chair at center-court, one sneaker propped on a cooler box of citrus, phone held to his ear. He nods slowly to whatever he's hearing, the corner of his mouth lifting. Pastel-pink and turquoise color blocking, bougainvillea bursting at the edges, midday sun flattening shadows, Wes Anderson symmetry, no movement except his breath and a single ice cube clinking.
Veo 3.1 Fast
vs
Gen-4.5
Objects and Animals
Quality of rendering inanimate objects and animals with accurate shapes, textures, and movements.
Veo 3.1 Fast leads on objects and animals (+15.1), with a measurable advantage over Gen-4.5. The clearest separation is on Objects (+15.3). Across the other sub-metrics in this group, the gap is smaller but generally consistent with the overall direction. If objects and animals is a priority for your prompts, Veo 3.1 Fast is the safer pick here.
| Metric | Veo 3.1 Fast | Gen-4.5 |
|---|---|---|
| Objects | 57.6 | 42.4 |
| Animals | 55.1 | 40.2 |
Prompt Comparisons
Objects
Prompt
Luxury commercial product shot, slow 360-degree turntable on a square olive-glass bottle with a brushed amber cap, a single silk ribbon and small ivory label fluttering as the platform rotates. Long soft shadow stretches across the warm beige seamless. Polished beauty lighting, micro-reflections traveling along the glass edges, dust motes catching in a single hair-light, hushed minimalist counter-display elegance, 8K macro precision.
Veo 3.1 Fast
vs
Gen-4.5
Objects
Prompt
Graphic-design product shot, locked symmetrical frame of a tall clear glass bottle with vibrant magenta-and-yellow label split exactly between a deep teal and a hot-pink color block backdrop, a single palm leaf casting an animated soft shadow as it sways off-camera. Hard direct sun shifts subtly, gradient highlights tracing the curvature. Memphis-meets-minimalism styling, saturated to the edge of acid, the bottle held like a sculpture under tropical noon. ---
Veo 3.1 Fast
vs
Gen-4.5
Objects
Prompt
Editorial fashion commercial shot, slow vertical crane move rising from base level up to eye-level on a deep oxblood-red leather handbag perched on a circular white plinth, gold padlock and tassel swaying delicately as a curtain of cream silk drapery behind it ripples in a gentle off-screen breeze. Warm tungsten film grade, narrow shaft of light caressing the leather grain, museum-like reverence, the quiet drama of a single object held under a single beam.
Veo 3.1 Fast
vs
Gen-4.5
Text
Ability to render readable, accurate text and typography within generated videos.
Veo 3.1 Fast leads on text (+17.2), with a measurable advantage over Gen-4.5. The clearest separation is on Text Fidelity (+17.2). Across the other sub-metrics in this group, the gap is smaller but generally consistent with the overall direction. If text is a priority for your prompts, Veo 3.1 Fast is the safer pick here.
| Metric | Veo 3.1 Fast | Gen-4.5 |
|---|---|---|
| Text Fidelity | 47.7 | 30.5 |
Prompt Comparisons
Text Fidelity
Prompt
High-end skincare commercial macro, slow push-in on a cream-colored cosmetic tube laid diagonally on a glass surface flooded with fresh white foam and pooling water, its black label reading "Lumae Calming Cleanser" standing crisp and unblurred as suds churn around it. Bubbles rise, water beads slide along the tube, gentle daylight rakes across the glossy plastic. Each character of the typeface remains intact and proportionate throughout, glassy clinical-meets-natural styling.
Veo 3.1 Fast
vs
Gen-4.5
Prompt Adherence
Prompt
Stylized 2D cinematic close-up, a young woman in profile applying deep red lipstick with deliberate care, her reflection visible in a vanity mirror as she purses, smooths, and presses her lips together. Behind her, painterly cumulus drift across an unrealistically saturated cyan sky. Bold linework, comic-book inking with cel-shading, color-block backdrop, the small private ritual of putting on a face for the world.
Veo 3.1 Fast
vs
Gen-4.5
Prompt Adherence
Prompt
First-person handlebar POV cinematic shot, hands gripping rubber grips as a single-speed bicycle rolls through a rain-glazed neon downtown at a steady pace, signage smearing into horizontal streaks of magenta and lime. Tires hiss across wet pavement, brake-lever shadows flicker, breath visible in the cold. Practical motion blur, anamorphic streak flares, lo-fi cinema-verite grit.
Veo 3.1 Fast
vs
Gen-4.5
Cost and Speed
Practical factors including pricing per video and generation latency.
Gen-4.5 leads on cost and speed (+213.7), with a measurable advantage over Veo 3.1 Fast. The clearest separation is on Latency (+638.0). Across the other sub-metrics in this group, the gap is smaller but generally consistent with the overall direction. If cost and speed is a priority for your prompts, Gen-4.5 is the safer pick here.
| Metric | Veo 3.1 Fast | Gen-4.5 |
|---|---|---|
| Price / sec | $0.100 | $0.050 |
| Price / min | $6.00 | $3.00 |
| Latency | 638ms | 0ms |
Prompt Comparisons
Human
Prompt
High-fashion editorial motion shot, locked symmetrical frame of a model in a tailored mint flight-attendant uniform leaning against a stack of matching pastel suitcases, fingertips delicately raised, lips painted carmine, eyes tracking imperceptibly toward camera. Background a single saturated mint-green wall. Mid-century travel-poster styling, slow micro-movements, polished commercial lighting, the cool poise of an entire era distilled into one held pose. ---
Veo 3.1 Fast
vs
Gen-4.5
Human
Prompt
Sumptuous cinematic frame, locked medium shot on a lean young man slouched on a heavy ornate throne, one arm draped over the carved rest, the other resting near a chalice and a jeweled blade. Firelight from candelabras flickers across oiled skin and the dull glint of coin piles at his feet. Velvet drapes shift in a draft, his gaze flicks toward camera, faintly amused. Caravaggio chiaroscuro, deep crimsons and tarnished gold, the still arrogance of inherited power.
Veo 3.1 Fast
vs
Gen-4.5
Hands
Prompt
Photoreal CG surreal moment, extreme depth composition: in the soft-focused foreground a giantess gazes serenely while pressing her thumb to her lips, and on the pad of that thumb a tiny suited human figure stands frozen, watching the wind rake her eyelashes. Below, a hazy metropolis fades into smog. Sharp focus on her freckled skin and on him, gentle bokeh on the middle ground, the impossible scale rendered with unsettling photographic honesty.
Veo 3.1 Fast
vs
Gen-4.5

