How to Build an Advanced AI Agent with Summarized Short-Term and Vector-Based Long-Term Memory In this tutorial, we walk you through building an advanced AI Agent that not only chats but also remembers. We start from scratch and demonstrate how to combine a lightweight LLM, FAISS vector search, and a summarization mechanism to create both short-term and long-term memory. By working together with embeddings and auto-distilled facts, we can craft an agent that adapts to our instructions, recalls important details in future conversations, and intelligently compresses context, ensuring the We begin by installing the essential libraries and importing all the required modules for our agent. We set up the environment to determine whether we are using a GPU or a CPU, allowing us to run the model efficiently. We define a function to load our language model. We set it up so that if a GPU is available, we use 4-bit quantization for efficiency; otherwise, we fall back to the CPU with optimized settings. This ensures we can generate text smoothly regardless of the hardware we are running on. We create a VectorMemory class that gives our agent long-term memory. We store past interactions as embeddings using MiniLM and index them with FAISS, allowing us to search and recall relevant information later. Each memory is saved to disk, enabling the agent to retain its memory across sessions. We bring everything together into the MemoryAgent class. We design the agent to generate responses with context, distill important facts into long-term memory, and periodically summarize conversations to manage short-term context. With this setup, we create an assistant that remembers, recalls, and adapts to our interactions with it. We instantiate our MemoryAgent and immediately exercise it with a few messages to seed long-term memories and verify recall. We confirm it remembers our preferred name and exam year, adapts replies to our concise style, and uses past preferences (agentic RAG, single-file Colab) to tailor study guidance in the present. In conclusion, we see how powerful it is when we give our AI Agent the ability to remember. We now have an agent that stores key details, recalls them when relevant, and summarizes conversations to stay efficient. This approach keeps our interactions contextual and evolving, making the agent feel more personal and intelligent with each exchange. With this foundation, we are ready to extend memory further, explore richer schemas, and experiment with more advanced memory-augmented agent designs. Complete code: Click Here
