LTX 2.3 3070 Simple Master

Summary

Best current LTX 2.3 low-complexity starter for local video work.

This master uses the simple single-pass workflow instead of the more ambitious first-last-frame or character-sheet variants because your 3070 needs a realistic first foothold, not the fanciest graph on paper.

Status

best-current
not-yet-tested-on-chris-box

Workflow asset

workflow.json

Built from

models/ltx/ltx23-i2v-t2v-simple-single-pass/

Why this is the current master

Most plausible LTX starting point on tighter VRAM
Simpler graph means less time chasing broken helper nodes
Supports both image-to-video and text-to-video style experimentation from one baseline

What I intentionally kept

single-pass graph shape
split-model assumption from the source pack
lighter starting complexity than the bigger RuneXX graphs

What I intentionally did not add yet

first-last-frame complexity
character-sheet consistency branches
extra memory-efficiency gadgets unless needed

Required custom nodes

ComfyUI-KJNodes
rgthree-comfy
easy use / easy showAnything
optional ComfyUI-GGUF support remains present in the source graph

Monday test checklist

Confirm whether it loads at all on the 3070.
Check whether preview/decode settings feel like the real bottleneck.
If it works, then try the heavier first-last-frame workflow second.

Next optimization candidates

strip unused optional loader paths if they create confusion
create a separate first-last-frame master only if the simple master proves viable