🚀 FREE 12-WEEK AI ENGINEER ROADMAP | 2026 Want to become an AI Engineer? Save this. 👇 No expensive bootcamp needed—just a structured plan, free resources, and consistent building. 📚 12 WEEKS, 12 BUILDS 1️⃣ Python + Math Resources: freeCodeCamp · 3Blue1Brown Linear Algebra · StatQuest 🎯 Build: Python data-analysis project. 2️⃣ ML Fundamentals Resources: StatQuest ML · Google ML Crash Course 🎯 Build: Regression or classification model. 3️⃣ Neural Networks Resources: 3Blue1Brown · StatQuest 🎯 Build: Simple neural network. 4️⃣ Deep Learning + PyTorch Resources: Karpathy Zero to Hero · PyTorch Tutorials 🎯 Build: Train a network and track loss. 5️⃣ LLMs from Scratch Resources: Karpathy Zero to Hero · 3Blue1Brown Transformers 🎯 Build: Tiny GPT-style language model. 6️⃣ Tokenization + Transformers Resources: Karpathy minBPE · Hugging Face LLM Course 🎯 Build: Tokenizer + pretrained-transformer experiment. 7️⃣ Hugging Face + Open-Source LLMs Resources: Hugging Face Learn · Mod...