How to Generate 2+ Minute AI Videos: JoyAI-Echo Complete Guide|Lossless vs. Lite ComfyUI Workflow:

How to Generate 2+ Minute AI Videos: JoyAI-Echo Complete Guide|Lossless vs. Lite ComfyUI Workflow:

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Descriptions:

Tired of AI video models that only give you 5-10 seconds of glory? 🎬 Say hello to JoyAI-Echo, a revolutionary long-video generation model from JD.com’s open-source team. Based on the LTX 2.3 architecture, it can generate up to 2 minutes and 24 seconds (144s) of continuous, multi-shot video in one go!
In this tutorial, I’ll show you how to master the Paired Audio-Video Memory Mechanism, which ensures your characters, environments, and even voices stay consistent across 15 different shots. We’ll cover two ComfyUI paths: the high-VRAM Lossless Version and the consumer-friendly Lite Version.
🔥 What you’ll learn today:
• 🧠 The Memory Secret: How JoyAI-Echo uses attention chains to prevent character “drifting.”
• ⚙️ ComfyUI Setup: Step-by-step for both A800/80GB (Lossless) and Consumer GGUF (Lite) workflows.
• ✍️ JSON Prompt Mastery: Why your prompts need the ID_A structure and how to build them.
• 🧪 LLM Battle: Comparing Claude, Codex, and Antigravity for generating the perfect multi-shot script.
• 🎞️ Real-World Tests: From room confessionals to Elsa fighting monsters.

#优云智算 #compshare #JoyAIEcho #LTX23 #ComfyUI #AIVideo #LongVideoGeneration #CharacterConsistency #JDOpenSource #Gemma3 #AIFilmmaking #VideoAI #AICreation #AIWorkflow #AIAnimation #JoyAI #JDResearch
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resource
comfyUI-joyAI-echo Lossless image
https://www.compshare.cn/images/skNK3sKvoTsU?referral_code=Bcwq73PCCwRB2XnQC310QPytag=GPU_YY-bl_YQD80H0623
source code:
https://github.com/jd-opensource/JoyAI-Echo
comfyUI-Lightweight Version
https://github.com/smthemex/ComfyUI_JoyAI_Echo
comfyui-Lossless Version
https://github.com/zhuang2002/ComfyUI_JoyAI_Echo

workflow and prompt engineering download:
https://github.com/amao2001/ganloss-latent-space/tree/main/workflow/2026-06-23%20joyai-echo

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