LTXVideo

Fixed minimal placeholder video latent for audio-only (text-to-audio) generation - a single 64x64 frame. LTX-2 needs a video latent at input index 0, but with LTXV Audio Only Model it is never attended to, so the dimensions are fixed (and hidden) to avoid confusion. Join it with the audio latent via LTXVConcatAVLatent.

Run the LTX-2 audio/video model in audio-only mode for text-to-audio. Skips the video stream and disables the audio<->video cross-attention, so the generated audio does not depend on the video latent. The sampler still needs a minimal dummy video latent (EmptyLTXVLatentVideo at 64x64 length 1, joined with LTXVConcatAVLatent); it is never attended to. Remove or bypass this node to restore normal joint audio+video generation.

Defines the blocks to apply the STG to.

Loads an LTXV Audio VAE checkpoint with dependency support. Connect 'dependencies' to a previous loader's output to ensure sequential loading and reduce peak VRAM usage.

Loads a diffusion model checkpoint with dependency support. Connect 'dependencies' to a previous loader's output to ensure sequential loading and reduce peak VRAM usage.