LTX 2.3 Fast
Strengths: Pricing, Speed & Stability
Compare engines
Compare LTX 2.3 Fast with OpenAI Sora 2 Pro when the choice is economical high-resolution iteration or studio-grade Sora output. LTX offers 1440p or 4K for clips up to 10 seconds and reaches 20 seconds at 1080p and 25 fps; Sora Pro adds reference-led workflows for polished shots up to 12 seconds.
Quick verdict
Choose LTX 2.3 Fast for economical 1440p or 4K iterations up to 10 seconds, or longer 1080p clips at 25 fps. Choose OpenAI Sora 2 Pro when studio-grade Sora rendering and image or reference workflows matter more than clip length or price.
Strengths: Pricing, Speed & Stability
Strengths: Studio-grade Sora renders
MaxVideoAI price per second by resolution; the pricing score compares the same tier when possible.
LTX 2.3 Fast
OpenAI Sora 2 Pro
Comparable score tier: 1080p: $0.05/s vs 720p: $0.39/s
Scores reflect quality and control on MaxVideoAI across 11 criteria.
How we benchmarkPrompt Adherence
iprompt alignment / instruction followingVisual Quality
iimage quality / aesthetic quality / realism / artifacts / flickerMotion Realism
imotion smoothness / physics plausibilityTemporal Consistency
itemporal coherence / identity consistencyHuman Fidelity
ifaces / hands / body realismText & UI Legibility
itext rendering / readabilityAudio & Lip Sync
ilip sync quality / dialogue syncMulti-Shot Sequencing
ishot-to-shot continuity / multi-shotControllability
icamera control / constraint followingSpeed & Stability
ilatency / success ratePricing
iprice per second / credits / estimated costOpenAI Sora 2 Pro leads on 8/11 (best: Human Fidelity, Visual Quality).
Cheaper: LTX 2.3 Fast (1080p: $0.05/s vs 720p: $0.39/s).
First/Last frame: LTX 2.3 Fast (Supported (start + end image in I2V) vs Not exposed in current MaxVideoAI route).
Compare key AI video model specs side-by-side (pricing, inputs, resolution, duration, aspect ratios, audio, and core controls). This is a high-level snapshot — see the full engine profile for the complete feature set and prompt examples.
Choose LTX for longer iterations
LTX supports native audio and reaches 20 seconds at 1080p and 25 fps; its 1440p and 4K options are available for clips up to 10 seconds.
Choose Sora Pro for references
Sora Pro accepts text, images, and references for teams seeking the studio-grade Sora look in clips up to 12 seconds.
Resolution and cost trade-off
LTX starts at $0.04 per second in 1080p and can render 4K; Sora Pro starts at $0.30 per second in 720p and tops out at 1080p.
Best production fit
Use LTX for repeated ad concepts, 1440p or 4K shots up to 10 seconds, and longer 1080p/25 fps clips; use Sora Pro for high-value reference-led hero footage.
Side-by-side renders from the same prompt on MaxVideoAI. Prompts are identical; outputs may vary by model.
Showing up to 3 prompt pairs for clarity.
What it tests: Motion Realism + Temporal Consistency + Visual Quality
Wide 16:9 cinematic action shot, a runner sprints through a rainy city street at night, water splashes realistically with each step, reflections on wet asphalt, handheld tracking camera following from the side. Dynamic motion with believable inertia and physics, no rubbery limbs, no wobbling background, stable scene geometry, minimal temporal flicker, sharp details despite fast movement, realistic motion blur.
LTX 2.3 Fast
OpenAI Sora 2 Pro
What it tests: Human Fidelity + Audio/Lip Sync + Prompt Adherence
Vertical 9:16 TikTok-style UGC selfie video, handheld smartphone feel, natural indoor daylight near a window. A friendly creator speaks directly to camera with natural blinking, subtle head nods, and a warm smile. Add small human imperfections: a tiny hesitation, a soft breath, a quick smile mid-sentence, and a micro-pause before the last line. Realistic skin texture, stable identity, no face warping, minimal flicker, clean audio with natural room tone. No subtitles. No on-screen text. No logos. No watermarks. The creator says (exactly, with the same pacing and hesitations): “Okay, so… um… quick thing. If you’re feeling stuck, just do the tiniest first step… like, set a two-minute timer and start. (smiles) That’s it. You’ll be surprised how fast it gets easier.”
LTX 2.3 Fast
OpenAI Sora 2 Pro
What it tests: Hands/Fingers + Text & UI Legibility + Prompt Adherence
Wide 16:9 full-body unboxing video in a clean studio/kitchen setting. A person is fully visible (head-to-toe or at least head-to-knees) standing behind a minimalist tabletop. They unbox a small generic gadget from a plain matte cardboard box: peel the seal, open the lid, remove the inner tray, take out the device and accessories, and lay everything neatly on the table. The person occasionally lifts the item toward the camera for a closer look, then places it back down. Realism requirements: natural body proportions, stable identity, realistic skin and clothing fabric, no face warping, no unnatural limb bending. Hands must be highly realistic: correct finger count, natural grip, believable pressure/contact with the box and device, consistent shadows, no extra fingers, no “floating” objects. Keep object geometry stable, no wobbling background, minimal temporal flicker. Camera: single continuous shot, tripod-stable, slight cinematic push-in (very slow), eye-level or slightly above table height. Natural soft daylight, clean shadows, realistic materials and textures. No logos, no brand names, no watermarks. No subtitles. Optional on-screen title at the top (perfectly readable and stable, no jitter): "UNBOXING — FIRST LOOK"
LTX 2.3 Fast
OpenAI Sora 2 Pro
This side-by-side AI video comparison uses identical prompts to highlight differences in motion, realism, human fidelity, and text legibility. For full specs, controls, and more prompt examples, open each engine profile.
Answers for choosing economical 4K iteration or a reference-led Sora workflow.
LTX 2.3 Fast supports clips up to 20 seconds at 1080p and 25 fps. OpenAI Sora 2 Pro supports up to 12 seconds, while LTX 1440p and 4K output is limited to 10 seconds.
Yes. Both models support native audio. LTX separates 1440p/4K output up to 10 seconds from longer 1080p/25 fps runs, while Sora Pro emphasizes reference-led studio output.
Choose LTX for direct 4K output up to 10 seconds. For clips beyond 12 seconds, use its 1080p/25 fps path; choose Sora Pro when image or reference workflows and the Sora rendering style define the shot.