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LTX Desktop 1.3.1

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@ltx-desktop-bot ltx-desktop-bot released this 19 Oct 15:52
v1.3.1
8ffed88
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Learn about vigilant mode.

What's Changed

New IC-LoRAs

  • AlphaGen: cut a subject out of a video with no green screen and no prompt. You get a transparent cutout (WebM) and a matte (MP4). Both files line up with your clip.
  • Motion Track Control: draw up to three paths on a start frame to move objects or the camera. Set the pace and see a live preview.
  • Video Guide: direct a generation with a guide video. Choose Pose, Depth, or Canny edges. A start frame is optional.
  • Ingredients: combine up to 10 reference images into one video. It is in a new Marketing section.
  • IC-LoRA tools keep every frame of your clip. The Source audio mode copies the original audio.

1440p and 4K

  • Text to Video, Image to Video, Audio to Video, and the prompt and start-frame LoRAs offer 1440p and 4K.
  • 1440p clips go up to 20 seconds. 4K clips go up to 10 seconds. 4K does not offer 21:9.
  • Long clips run in overlapping time windows. The pickers tell you when this happens.
  • A 20-second 1080p clip now runs on 32 GB graphics cards.

Assistant

  • The new Assistant plans and queues jobs from plain words. It works on Desktop and on your phone.
  • It can make videos, apply styles and effects, run Retake and Extend, find assets, and extract a frame.
  • Use Ask assistant on an asset tile to attach it to a chat.
  • Choose Gemini (API key) or a local model (download from the Models tab).

Prompt enhancement

  • Enhance now looks at your source video for IC-LoRAs, Extend, and Retake.
  • Extend and Retake write a prompt from the video when the prompt is empty and auto-enhance is on.
  • Enhance works with an empty prompt when a video or start frame is present.
  • Enhance with Gemini can run during a generation.

Queue and Support

  • Every Queue row opens its generation on the feature page.
  • The diagnostic logs viewer has a refreshed design that matches the rest of the app.

Requirements

  • Windows: graphics cards with 9 GB or more of VRAM and fp8 support can run local generation with smaller settings.
  • macOS: the app needs macOS 14 or later. Local generation needs macOS 26 or later.

Privacy

  • Anonymous analytics now includes the OS version (and the distribution on Linux).

Bug Fixes

  • Windows: a short memory refusal during decode no longer stops the job.
  • Mac: long 1080p text-to-video clips no longer fail.
  • Linux: large models no longer fail with "Cannot allocate memory" on default memory settings.
  • Retake and Extend on LTX 2.3 no longer fail when LTX 2.5 is the active model.
  • Mac: with a right-to-left system language, the window buttons no longer cover Contact Sales.

Full Changelog: v1.3.0...v1.3.1

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