LTX
LTX builds the open-weights video model line best known for true 4K generation on consumer GPUs. It spun out of Lightricks as an independent company in July 2026, taking the video and world-model work and CEO Zeev Farbman with it while Lightricks retained its consumer apps. LTX-2.5 shipped in August 2026 with multishot continuity, a Gemma 4 text-encoder backbone, and HDR ACES support, alongside open weights and Day-0 ComfyUI integration. See the AI Video Stack for full details.