LTX 2.3 Fast
Strengths: Pricing, Speed & Stability
Compare engines
Compare LTX 2.3 Fast with Seedance 2.0 when the real choice is predictable listed high-resolution generation or a broader production toolkit. Both reach 4K with audio, while Seedance adds references, video editing, extension, motion controls, and more aspect ratios.
Quick verdict
Choose LTX 2.3 Fast for price-transparent high-resolution generation, remembering that clips above 10 seconds require 1080p at 25 fps. Choose Seedance 2.0 for references, editing, extension, motion controls, or broad ratios; its token-based pricing is dynamic, so neither is a universal price winner.
Strengths: Pricing, Speed & Stability
Strengths: Flagship multi-shot video with native audio and references
MarkDream price per second by resolution; the pricing score compares the same tier when possible.
LTX 2.3 Fast
Seedance 2.0
Comparable score tier: 1080p: $0.05/s vs 720p: $0.38/s
Scores reflect quality and control on MarkDream 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 costSeedance 2.0 leads on 9/11 (best: Multi-Shot Sequencing, Temporal Consistency).
Cheaper: LTX 2.3 Fast (1080p: $0.05/s vs 720p: $0.38/s).
Video-to-Video: Seedance 2.0 (Not supported vs Supported (video edit and extend)).
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 listed tiers
LTX 2.3 Fast publishes resolution-based tiers for 1080p, 1440p, and 4K text/image generation with audio in 16:9 or 9:16.
Choose Seedance for production control
Seedance 2.0 supports references, source-video editing, clip extension, motion controls, audio, broad ratios, and output from 480p through 4K.
Compare pricing per job
Seedance uses dynamic token-based pricing, while LTX lists fixed resolution tiers; input and output choices prevent a universal price winner.
Best high-resolution workflows
Use LTX for direct high-resolution text/image renders. Use Seedance when references, source-video edits, extensions, or motion controls define the job.
Side-by-side renders from the same prompt on MarkDream. 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
Seedance 2.0
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
Seedance 2.0
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
Seedance 2.0
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 about LTX listed pricing and Seedance production controls.
No universal winner applies. LTX has transparent listed resolution tiers, while Seedance quotes dynamic token-based pricing from the selected job.
Seedance 2.0 is the relevant choice because it supports reference inputs, video editing, extension, and motion controls. LTX Fast focuses on text/image generation.
Any LTX 2.3 Fast duration above ten seconds requires 1080p at 25 fps. Other resolution and frame-rate choices are limited to ten seconds or less.