Descriptions:
Generating AI videos is cool, but training your OWN custom character with perfectly synced voice and motion? That is the ultimate flex. 🚀🎬
In this masterclass, I’ll show you exactly how to train a custom LTX 2.3 LoRA from scratch using AI Toolkit. Unlike other models, LTX 2.3 requires both video AND audio training data, which makes the process trickier. I’ll walk you through dataset preparation (using an Anne Hathaway speech), my secret “Two-Stage” parameter tuning method to avoid overfitting, and how to deploy this on a cloud GPU like the RTX 5090 via Compshare.
🔥 What you’ll master in this tutorial:
• ✂️ Dataset Prep: How to cut and caption video+audio clips for perfect machine learning absorption.
• ⚙️ AI Toolkit Parameters: Why LTX 2.3 needs 5000-6000 steps (double that of Wan 2.2) and the exact Low VRAM / FP8 settings you need to use.
• 🧠 The Two-Stage Tuning Trick: How to use “High Noise” bias for the first 2500 steps to capture features fast, then switch to “Balance” to refine the details.
• 🐛 Fixing Overfitting: How to use smart prompting to break the AI out of the training background and test its true generalization.
• 💻 Local vs. Cloud Deployment: A full step-by-step guide to installing AI Toolkit locally (Python 3.12, PyTorch 2.9, Node.js) vs. using 1-click cloud solutions.
#compshare #runninghub #优云智算 #LTX23 #AIToolkit #LoRATraining #AIVideo #ComfyUI #MachineLearning #GenerativeAI #Deepfake #RTX5090 #ModelTraining #ComfyUITutorial #RunningHub #OpenSourceAI #VideoGeneration #AIAnimation #AI炼丹 #模型训练 #大模型微调
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resource
Lora training aitookit image：
https://www.compshare.cn/images/CMQW5gcLjuft?referral_code=Bcwq73PCCwRB2XnQC310QP&ytag=GPU_YY-bl_YQD80H0413
ai-tookit-github:
https://github.com/ostris/ai-toolkit
online workflow
1：video_ltx2_3_i2v_kijai_three_stage
https://www.runninghub.ai/post/2039717252961935361/?inviteCode=kol02-rh021
Runninghub Fan Benefit: Register to get 1,000 RHB
https://www.runninghub.ai/?utm_source=kol02-RH021
workflow and prompt engineering download：
https://github.com/amao2001/ganloss-latent-space/blob/main/workflow/2026-04-13%20video_ltx2_3_t2v_lora_testing.json
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