LIGHTRICKS / AUDIO-VIDEO DIT / 2026

LTX-2 19B

TOTAL18.88Bparameters

ACTIVE18.88Bper denoise step

DEPTH48repeated blocks

HIDDENdual streammain trunk

CONTEXTvideo latentlatent canvas

CHECKPOINT43.3GB BF161 shards · LTX Community

INTERACTIVE SYSTEM BLUEPRINT

MODEL MRI

512² · 33 FRAMES · 8 STEPS · 526.28T arithmetic FLOPs · click any module for evidence

VERIFIED ADAPTER

INPUT512²VIDEO CANVAS

TRANSFORMER STACK48 DUAL-STREAM BLOCKS14B video branch ⇄ 5B audio branch

Asymmetric Dual Residual

OUTPUT33FFRAMES

wraps every repeated block

A/V DIT ATTENTION · BIDIRECTIONAL A/V CROSS画面运动可影响声音，声音节奏也能反向约束视频 latent。

Dual FFN非对称容量把更多参数放在视觉分支，同时保留独立音频生成器。

BLOCKS48dual stream

VIDEO14Bbranch

AUDIO5Bbranch

VAE32× / 8×video

STEPS8distilled

PARAMS18.88Bheader