LTX-2
last releaseApril 23, 2026
powered byLTX-2 19B
goblin vibe check:
open-source model for when you need video and audio that actually match but you've got the hardware to run it locally
open-source audio-video foundation model from lightricks for synchronized 4k video and sound generation in a single pass.
speed
2-15
min
Unified audio-video generation in one passNative 4K output up to 20 secondsUp to 50 FPS for smoother motionFast, Pro, and Ultra performance tiers for iteration versus fidelity
key features
Unified audio-video generation in one passNative 4K output up to 20 secondsUp to 50 FPS for smoother motionFast, Pro, and Ultra performance tiers for iteration versus fidelity
spec & usage
Uses an asymmetric 19B diffusion-transformer stack split across video and audio pathways
Supports local execution on consumer NVIDIA RTX hardware with quantization paths around 8-12GB VRAM
ComfyUI and Diffusers-compatible with LoRA support for custom styles, characters, and camera moves
limitations
Higher-fidelity modes still take minutes per clip and can be heavy on local hardware
January 2026 timing is month-level rather than a fully verified day-level public launch date
scope:
visualvideoresearchlocalopen-sourcefreemultimodal
launchJanuary 2026
last releaseApril 23, 2026