I think we are now in the era of generative AI. I believe that LLM is an essential preparation for the generative AI era. Last week, from Friday the 19th to Saturday the 20th, I took time off to attend and observe the 2025 EduTech Fair. It seemed like almost all the companies that participated had tools and content that integrated AI and generative AI. Looking at this trend, I think generative AI will be the mainstream going forward. 6 Technologies That Complement LLM Limitations 1. Prompt Engineering 2. Fine Tuning 3. RAG 4. Function Calling and Tool Calling 5. LangChain 6. LangGraph