Compare
Infinity Star vs LTX 2 19B
LTX-2 19B edges out Infinity Star overall (Infinity Star 25.0 vs LTX-2 19B 43.0.) LTX-2 is an open-source option with low hardware requirements, making it accessible for experimentation. The tradeoff is configuration complexity and inconsistent output quality. The model appears trained heavily on old-school film stock, so vintage aesthetics can occur more often than with other models. Animation performance is weak outside of old-timey styles, and text rendering is poor. The main tradeoffs are in Difficult to configure, Wide quality variance, 3D animation, Animation (except vintage cartoons), Text rendering, where Infinity Star tends to score better.
Infinity StarFoundationVision | LTX-2 19BLightricks |
|---|---|
Good for
| Good for
|
Bad for
| Bad for
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Modalities
| Capability | Infinity Star | LTX-2 19B |
|---|---|---|
| Text input | ||
| Image input | ||
| Video input | ||
| Audio input | — | — |
| Image output | ||
| Audio output | — | — |
Providers
Physics
How well the model simulates real-world physics: gravity, momentum, collisions, and natural movement.
LTX-2 19B leads on physics (+27.4), with a measurable advantage over Infinity Star. The clearest separation is on Physics (+27.4). 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, LTX-2 19B is the safer pick here.
| Metric | Infinity Star | LTX-2 19B |
|---|---|---|
Prompt Comparisons
Physics
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.
Infinity Star
vs
LTX-2 19B
Physics
Prompt
Female javelin throwing athlete runs with a javelin and tosses it into the air.
Infinity Star
vs
LTX-2 19B
Physics
Prompt
Olympic swimmer jumps into a pool and swims a full lap and emerges from the water on the other side of the pool
Infinity Star
vs
LTX-2 19B
Prompt and Logic
Measures how accurately the model follows prompts and maintains logical consistency throughout the video.
LTX-2 19B leads on prompt and logic (+7.9), with a measurable advantage over Infinity Star. The clearest separation is on Scene Consistency (+28.8). 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, LTX-2 19B is the safer pick here.
| Metric | Infinity Star | LTX-2 19B |
|---|---|---|
Prompt Comparisons
Prompt Adherence
Prompt
Inside an opulent royal greenhouse filled with orchids, a blue ceramic watering can sits in the foreground on the left, and a terracotta pot with a single red tulip sits in the foreground on the right. A shallow reflecting pond runs through the middle and must show clear reflections. At second 2, a hummingbird enters from the top center and hovers directly above the tulip for exactly three seconds, then exits upward at second 5. The watering can and pot must remain fixed.
Infinity Star
vs
LTX-2 19B
Prompt Adherence
Prompt
Inside a gilded palace ballroom with tall mirrors and a marble floor, a gold crown sits on a red velvet cushion on a small round table in the foreground. A silver candlestick stands exactly to the right of the cushion. In the background, a crystal chandelier hangs centered above the room. At second 2 the chandelier sways gently left-to-right for exactly three seconds; at second 6 a gloved hand enters from the left and extinguishes only the rightmost candle on the candlestick. The crown and cushion must never move.”
Infinity Star
vs
LTX-2 19B
Prompt Adherence
Prompt
Single continuous shot in a sci-fi hangar with glossy floors and strong backlight haze. Keep a parked spaceship on the left, a glowing door panel on the right wall, and a metal crate centered in the foreground. A female lead runs from the background toward the crate and pivots around it without touching it. A small drone swoops in from the right and scans her with a sweeping light beam as it passes overhead. She slides behind the crate for cover, then pops out and slaps the glowing door panel once. The door panel flashes brighter and she holds in a ready stance facing it. The crate must never move and the spaceship must remain stationary. No cuts.
Infinity Star
vs
LTX-2 19B
Aesthetics
Visual quality including cinematography, artistic taste, and overall production value.
LTX-2 19B leads on aesthetics (+12.0), with a measurable advantage over Infinity Star. The clearest separation is on Cinematography (+23.8). 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, LTX-2 19B is the safer pick here.
| Metric | Infinity Star | LTX-2 19B |
|---|---|---|
Prompt Comparisons
Cinematography
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.
Infinity Star
vs
LTX-2 19B
Taste
Prompt
A cinematic hummingbird hovering over vivid flowers at sunrise, 8s
Infinity Star
vs
LTX-2 19B
Taste
Prompt
A futuristic city skyline at sunset, cinematic drone shot
Infinity Star
vs
LTX-2 19B
Animation
Performance on animated content styles including 2D, 3D, and anime-style animation.
LTX-2 19B leads on animation (+15.2), with a measurable advantage over Infinity Star. The clearest separation is on 2D Animation (+45.3). 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, LTX-2 19B is the safer pick here.
| Metric | Infinity Star | LTX-2 19B |
|---|---|---|
Prompt Comparisons
2D Animation
Prompt
Golden age cartoon chaos 2D cel-shaded animation style: a coyote runs off a cliff, hangs in mid-air, holds up a tiny sign that says "HELP," then plummets. Classic timing, smear frames, dust cloud impact.
Infinity Star
vs
LTX-2 19B
2D Animation
Prompt
Hand-painted rotoscope: a ballerina performs fouettés, traced from live reference but stylized with ink outlines and watercolor fills. The motion is realistic but the look is distinctly illustrated.
Infinity Star
vs
LTX-2 19B
3D Animation
Prompt
Action-adventure CG: a fierce Viking warrior rides a dragon through a narrow sea stack canyon at high speed. Braided beard and fur cloak whipping in the wind, dragon wings tucking and flaring. Dynamic camera, motion blur, cinematic framing.
Infinity Star
vs
LTX-2 19B
Humans
Accuracy of human rendering including body proportions, hand details, and realistic actor performances.
LTX-2 19B leads on humans (+10.0), with a measurable advantage over Infinity Star. The clearest separation is on Actor Performance (+19.7). 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, LTX-2 19B is the safer pick here.
| Metric | Infinity Star | LTX-2 19B |
|---|---|---|
Prompt Comparisons
Human
Prompt
A punk rock drummer absolutely destroys a kit, sticks blurring, head thrashing. Freeze for a moment on her mid-scream face, then resume chaos.
Infinity Star
vs
LTX-2 19B
Human
Prompt
Cinematic slow-motion of a boxer throwing a punch at a heavy bag. Muscles contract in shoulders and arms, sweat flies, face shows exertion.
Infinity Star
vs
LTX-2 19B
Human
Prompt
A woman practices yoga at sunrise on a cliff overlooking the ocean, flowing from warrior pose into a deep lunge. Wind catches her hair.
Infinity Star
vs
LTX-2 19B
Objects and Animals
Quality of rendering inanimate objects and animals with accurate shapes, textures, and movements.
LTX-2 19B leads on objects and animals (+18.4), with a measurable advantage over Infinity Star. The clearest separation is on Objects (+21.6). 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, LTX-2 19B is the safer pick here.
| Metric | Infinity Star | LTX-2 19B |
|---|---|---|
Prompt Comparisons
Animals
Prompt
A wet dog shakes itself dry in glorious slow motion. Water droplets spiral off. Fur contorts into absurd shapes. Joy radiates from its face.
Infinity Star
vs
LTX-2 19B
Animals
Prompt
Pod of orcas hunting in coordinated precision. Underwater ballet—sleek bodies, powerful flukes before they rise to the surface and leap into the air before splashing back down.
Infinity Star
vs
LTX-2 19B
Objects
Prompt
Product hero shot: a luxury watch rotates on a pedestal, catching light on every surface. Crystal, brushed steel, leather strap. The branding is legible. Zero geometry drift through the full rotation.
Infinity Star
vs
LTX-2 19B
Text
Ability to render readable, accurate text and typography within generated videos.
LTX-2 19B leads on text (+17.7), with a measurable advantage over Infinity Star. The clearest separation is on Text Fidelity (+17.7). 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, LTX-2 19B is the safer pick here.
| Metric | Infinity Star | LTX-2 19B |
|---|---|---|
Prompt Comparisons
Text Fidelity
Prompt
Street-level Tokyo: kanji, hiragana, katakana everywhere. Shop signs, vending machines, posters we follow a woman walking down the street.
Infinity Star
vs
LTX-2 19B
Text Fidelity
Prompt
Times Square at night: massive LED billboards display rotating ads. COCA-COLA, SAMSUNG, BROADWAY SHOWS.
Infinity Star
vs
LTX-2 19B
Prompt Adherence
Prompt
Action scene, cinematic and dynamic: A female lead in a dark tactical jacket sprints through a rain-soaked museum hall at night. The hall has three distinct landmarks: (1) a huge dinosaur skeleton on the left, (2) a glass display case with a glowing blue gem centered in the background, and (3) a marble staircase on the right.
Infinity Star
vs
LTX-2 19B
Cost and Speed
Practical factors including pricing per video and generation latency.
LTX-2 19B leads on cost and speed (+4.1), with a measurable advantage over Infinity Star. The clearest separation is on Price / min (+12.0). 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, LTX-2 19B is the safer pick here.
| Metric | Infinity Star | LTX-2 19B |
|---|---|---|
Prompt Comparisons
Scene Consistency
Prompt
Single continuous shot in a dark planetarium exhibit. A mechanical orrery rotates smoothly: small planets circle a glowing central sun in repeating loops. The camera makes a slow arc around the orrery while the planets continue their motion.”
Infinity Star
vs
LTX-2 19B
Scene Consistency
Prompt
Single continuous macro shot inside a watchmaker’s workshop. Extreme close-up of tweezers placing a tiny brass gear into a mechanical watch movement. The engraved markings on the gear remain crisp and identical frame-to-frame. The tweezers and gear never warp or change shape, and the camera motion is a smooth, slow push-in with no jitter. The gear teeth must not shimmer or crawl as it settles into place.
Infinity Star
vs
LTX-2 19B
Scene Consistency
Prompt
Single continuous shot at a bright outdoor skatepark. A female skater in a red beanie and black hoodie rolls toward camera on a skateboard with a bold checkerboard deck graphic. The camera tracks alongside her smoothly. She performs one clean kickflip and lands it, continuing forward. The beanie, hoodie, and checkerboard graphic remain stable without flicker, and the board does not morph mid-air.”
Infinity Star
vs
LTX-2 19B