[edit:<h3 id="24.04.2026:-update-version-4.3-(see-version-description).">24.04.2026: Update version 4.3 (see version description).</h3>Minor update and bug fix.Thanks to all users for the many inputs over the last days and weeks 🙂<h3 id="attention:">Attention:</h3>If you struggle with node conflicts or you get errors while running the workflow, please have a look at my short Trouble Shooting Guide note in the wokflow first. Most importent is to update all components sucsessfully! ]<span style="background-color:rgb(26, 27, 30);color:rgb(230, 73, 128);font-family:-apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, Helvetica, Arial, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;;font-size:16px">Special thanks to:@ArcleinSK for investigation and solving the FLF issue, as well as forcing the First-Mid-Last Frame option and last but not least for charing fantastic knowlage.@boinobin730 for initialising, forcing and supporting this project in all kinds of matter, like providing links, running tests, sharing knowlage and inspiring diskussions.@Urabewe for publishing the original, perfectly running 12 GB VRAM LTX-2.3 <a target="_blank" rel="ugc" href="https://civarchive.com/models/2304098">workflows</a> mainly used here in this workflow.<h2 id="features:">Features:</h2>Simple to use all-In-One LTX-2 workflow with options for:<ul><li>Text to Video</li><li>Image to Video</li><li>First/Last Frame to Video</li><li>Fisrt/Mid/Last Frame to Video</li><li>Video to Video</li><li>Text + Audio to Video</li><li>Image + Audio to Video</li><li>First/Last Frame + Audio to Video</li><li>First/Mid/Last Frame + Audio to Video</li></ul><ul><li>easy switching between all options,</li><li>all steps highly automated: no manual frame or width/hight calculations necessary,</li><li>easy to set inputs by predefined sliders and aspeckt ratio inputs (no risk to set wrong frame counts or wrong width/hight values),</li><li>completely automated resizing and cropping (if necessary) of your input images/videos.</li><li>brilliant audio generation (speech/sound) with LTX-2.3.</li></ul><h2 id="ltx-2.3-specifications:">LTX-2.3 specifications:</h2>Workflow version v4.3 consistently follows the LTX-2.3 specifications for 16:9/9:16 aspect ratios, including automatic width/hight calculations, as well as automatic input image/video resizing/cropping.In addition you can simply choose now any other aspect ratios according to your needs while still getting the right values calculated for width/hight and automatic image/video resize/crop.<h2 id="requirements:">Requirements:</h2><ul><li>GPU with 12 GB VRAM (some users reported they got it running with 8 GB too),</li><li>32 GB VRAM,</li><li>Swap file size: 64 - 128 GB.</li></ul><h3 id="speed-and-video-length:">Speed and video length:</h3>Runs very fast: 5 second (1280 x 864) Video: &lt; 10 minutes.Generation of long high quality videos in one run possible: 10 - 20 seconds without any issues,Testrun: 30 second video (1024 x 704) tooks around 40 minutes without any OOM errors. Longer videos might be possible, but not tested yet.<h3 id="important:">Important:</h3>This workflow is intended for advanced comfyui users who know how to install and operate the system and are able to resolve basic system errors themselves, like as node conflicts, or general system issues.<h3 id="about-this-workflow:">About this workflow:</h3>This workflow is mainly based on the fantastic LTX-2.3 <a target="_blank" rel="ugc" href="https://civarchive.com/models/2443867/ltx-23-22b-gguf-workflows-12gb-vram">workflows</a> of @Urabewe.As far as I know, those were the first workflows running LTX-2 with 12 GB VRAM. All credits goes to the original creator.My job was only to combine and organise the different workflows in a simple to use all-in-one design.

LTX-2.3 All-In-One workflow for RTX 3060 with 12 GB VRAM + 32 GB RAM

Version 4.2<ul><li>Fixed wrong setting in "Aspect Ratio" subgraph</li></ul>Version 4.1<ul><li>Fixed issue with not visible "Aspect Ratio" input.</li></ul>Version 4.0<ul><li>Added First-Mid-Last Frame to Video option.</li><li>Fixed recent Fisrt/Last Frame issues.</li><li>Completely re-designed input "interface" to easy choose the best LTX-2.3 aspect ratios or other standard aspect ratios as well as any custom aspect ratios or automatic aspect ratio calculations according to your input images or videos.</li><li>Completely re-designed Widh/Hight calculation under the hood. All values are strictly devisible by 32 for any aspect ratios now.</li></ul>I did a lot of pre-tests. All options should work as intended.As allways: please let me know if you find any "bugs" - and of course, let me know if you have any ideas to improve this workflow.

Files with SHA256: d0b46897ed2ec0cef109e07dcb6853b1bf1a4d7fa8d0174fee0f33ae3808c197