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LTX-2

Parameters

2.2B

Modality

Video

Auxiliary Parameters

160M

Architecture

Diffusion Transformer

License

OpenRAIL++

Release Date

10 Jan 2025

API Pricing (per 1M)

Self-hosted only

Hardware Sizing

Precision

Workload Memory: 4.27 GB

INT4 · 1024x1024

DiT Backbone Weights: 1.02 GB

VAE Decode Workspace: 0.75 GB

Runtime & Graphs: 2.50 GB

Minimum Required Hardware

1x NVIDIA L4 24GB

4.3 / 21.6 GB usable

1x RTX 3060 12GB

4.3 / 10.8 GB usable

Apple M4 24GB

4.3 / 18.0 GB usable

Determine requirements for your specific workload:

Open in VRAM Calculator

Architecture Diagram

Noisy Video Latents3D Spatio-Temporal VAE Latents3D Patch Embedding3D Spatio-Temporal PatchifyHidden: 4.1k · Text: 160M enc · Timestep (t)x 48 DiT blocksAdaLN ModulationNorm · Timestep scale/shiftSpatio-Temporal Attention32 headsHead dim: 128+AdaLN ModulationNorm · Timestep scale/shiftFeed-Forward (MLP)Activation+Final Norm (AdaLN Scale)Predicted Velocity (v)Denoised 3D Latents to VAE

About LTX-2

LTX-2 is a 2.2B parameter real-time video generation transformer by Lightricks, optimized for lower latency and improved prompt compliance in consumer hardware environments.

Technical Specifications

Attention

Attention Heads

32

Attention Head Dimension

128

Dimensions

Auxiliary Parameters

160M

Hidden Dimension Size

4,096

Number of Layers

48

About LTX-Video


Other LTX-Video Models