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AI video model comparison

LTX-2 19B vs Infinity Star

By Megaton TeamJuly 22, 2026

LTX-2 19B is the better overall choice over Infinity Star. It scores higher in nearly every quality category shown.

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LTX-2 19B
Infinity Star

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Our verdict

LTX-2 19B is the better choice

LTX-2 19B scores higher than Infinity Star in nearly every quality category shown. Its biggest lead is in 2D animation, and it also is the only model here with audio output.

Lightricks

Lightricks

LTX-2 19B

43.0Overall score
Rank
#17
Price per minute
$2.39/min
FoundationVision

FoundationVision

Infinity Star

24.0Overall score
Rank
#20
Price per minute
$0.84/min

Best for

Highest overall score

LTX-2 19B

LTX-2 19B leads the overall score by 19.0 points.

The overall score does not measure file reliability.

Best for

More readable text

LTX-2 19B

LTX-2 19B leads by 17.7 points.

Long or moving text still needs manual review.

Best for

Lower generation cost

Infinity Star

Infinity Star runs $0.84/min, against $2.39/min for LTX-2 19B.

Provider prices can change.

Best for

Built-in audio

LTX-2 19B

LTX-2 19B generates audio with the video; Infinity Star does not.

This comparison does not score audio quality.

96
videos rated
2,736
measurements
384
ratings
July 22, 2026
last updated

Reviewer scores

Scores by category

LTX-2 19B wins 12 of 14 categories head-to-head. Each bar is the reviewer score out of 100.

Biggest gap2D Animation: LTX-2 19B ahead by 45.3 points.
Closest categoryHands: LTX-2 19B ahead by 1.6 points.

Head-to-head scores

14 categories rated head-to-head

LTX-2 19BInfinity Star
Physics
41.9
14.5
Prompt Adherence
50.0
48.0
Logic Consistency
16.8
23.8
Scene Consistency
52.2
23.4
Cinematography
53.4
29.6
2D Animation
55.0
9.7
3D Animation
28.3
25.7
Anime Animation
35.0
37.3
Human
33.6
25.0
Hands
34.6
33.0
Actor Performance
54.3
34.7
Objects
47.6
26.0
Animals
54.6
39.4
Text Fidelity
19.3
1.7

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.

LTX-2 19B
48 videos rated · Jul 2026
Infinity Star
48 videos rated · Jul 2026

File reliability checks

Playback, framing, and motion stability

LTX-2 19BInfinity Star

LTX-2 19B's biggest lead: Edge stability, 71.0 versus 66.0.

Infinity Star's biggest lead: Technical cleanliness, 75.0% versus 35.0%.

Technical cleanliness
35.0%
75.0%

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

Freeze-free playback
98.0%
96.0%

Clips that play without stalls or frozen frames.

Clean framing
83.0%
98.0%

Clips without unexpected black bars or cropped edges.

Motion stability
58.0
66.0

How consistently surfaces hold their shape and texture while moving.

Edge stability
71.0
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

LTX-2 19B leads here by 17.7 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 LTX-2 19B and Infinity Star
LTX-2 19B
Infinity Star

Video test 2

Physics

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

Related category score

LTX-2 19B leads here by 27.4 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 LTX-2 19B and Infinity Star
LTX-2 19B
Infinity Star

Video test 3

Cinematography

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

Related category score

LTX-2 19B leads here by 23.8 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 LTX-2 19B and Infinity Star
LTX-2 19B
Infinity Star

Capabilities

Inputs and outputs

See full LTX-2 19B detailsSee full Infinity Star details
CapabilityLTX-2 19BInfinity Star
Text inputYesYes
Image inputYesYes
Video inputYesNo
Audio inputYesNo
Image outputNoNo
Audio outputYesNo

FAQ

Common questions

Is LTX-2 19B better than Infinity Star?

LTX-2 19B is better overall and leads most quality categories.

Is LTX-2 19B cheaper than Infinity Star?

Infinity Star costs less at $0.84 per minute, compared with $2.39 for LTX-2 19B.

Does LTX-2 19B generate audio?

Yes, LTX-2 19B includes audio output.

Does Infinity Star generate audio?

No, Infinity Star does not include audio output.

Which model makes longer clips, LTX-2 19B or Infinity Star?

Both models list a 5-second maximum clip duration.

Which model scores higher on 2D Animation, LTX-2 19B or Infinity Star?

LTX-2 19B scores higher for 2D animation.

Which model scores higher on Scene Consistency, LTX-2 19B or Infinity Star?

LTX-2 19B scores higher for scene consistency.

How are LTX-2 19B and Infinity Star 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 LTX-2 19BByteDanceLightricks73.0 / 43.0
Kling 3 Pro vs LTX-2 19BKlingLightricks62.0 / 43.0
Seedance 2.0 vs Infinity StarByteDanceFoundationVision73.0 / 24.0
Kling 2.6 vs LTX-2 19BKlingLightricks60.0 / 43.0
Veo 3 vs LTX-2 19BGoogleLightricks60.0 / 43.0
Kling 3 Pro vs Infinity StarKlingFoundationVision62.0 / 24.0
Grok Imagine 1.0 vs LTX-2 19BxaiLightricks58.0 / 43.0
Kling 2.6 vs Infinity StarKlingFoundationVision60.0 / 24.0
Veo 2 vs LTX-2 19BGoogleLightricks56.0 / 43.0
Veo 3 vs Infinity StarGoogleFoundationVision60.0 / 24.0
Veo 3.1 vs LTX-2 19BGoogleLightricks56.0 / 43.0
Grok Imagine 1.0 vs Infinity StarxaiFoundationVision58.0 / 24.0
PixVerse v5.5 vs LTX-2 19BPixVerseLightricks55.0 / 43.0
Grok 2025 vs LTX-2 19BxaiLightricks54.0 / 43.0
Veo 2 vs Infinity StarGoogleFoundationVision56.0 / 24.0
Veo 3.1 vs Infinity StarGoogleFoundationVision56.0 / 24.0
Seedance 1.5 Pro vs LTX-2 19BByteDanceLightricks53.0 / 43.0
PixVerse v5.5 vs Infinity StarPixVerseFoundationVision55.0 / 24.0
Veo 3.1 Fast vs LTX-2 19BGoogleLightricks51.0 / 43.0
Grok 2025 vs Infinity StarxaiFoundationVision54.0 / 24.0
Sora 2 Pro vs LTX-2 19BOpenAILightricks50.0 / 43.0
Seedance 1.5 Pro vs Infinity StarByteDanceFoundationVision53.0 / 24.0
Veo 3 Fast vs LTX-2 19BGoogleLightricks48.0 / 43.0
Veo 3.1 Fast vs Infinity StarGoogleFoundationVision51.0 / 24.0
Vidu Q2 vs LTX-2 19BViduLightricks45.0 / 43.0
Sora 2 Pro vs Infinity StarOpenAIFoundationVision50.0 / 24.0
LTX-2 19B vs Gen-4.5LightricksRunway43.0 / 40.0
Veo 3 Fast vs Infinity StarGoogleFoundationVision48.0 / 24.0
LTX-2 19B vs Pika v2.2 Text-to-VideoLightricksPika43.0 / 26.0
Vidu Q2 vs Infinity StarViduFoundationVision45.0 / 24.0
Gen-4.5 vs Infinity StarRunwayFoundationVision40.0 / 24.0
Pika v2.2 Text-to-Video vs Infinity StarPikaFoundationVision26.0 / 24.0

Methodology

How we tested LTX-2 19B and Infinity Star

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 96 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.
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