At its core, Advanced RAG provides developers with a modular architecture to implement RAG workflows. The framework features pluggable components for document ingestion, chunking strategies, embedding generation, vector store persistence, and LLM invocation. This modularity allows users to mix-and-match embedding backends (OpenAI, HuggingFace, etc.) and vector databases (FAISS, Pinecone, Milvus). Advanced RAG also includes batching utilities, caching layers, and evaluation scripts for precision/recall metrics. By abstracting common RAG patterns, it reduces boilerplate code and accelerates experimentation, making it ideal for knowledge-based chatbots, enterprise search, and dynamic content summarization over large document corpora.

OSU NLP Middleware is a lightweight framework built in Python that simplifies the development of AI agent systems. It provides a core agent loop that orchestrates interactions between natural language models and external tool functions defined as plugins. The framework supports popular LLM providers (OpenAI, Hugging Face, etc.), and enables developers to register custom tools for tasks like database queries, document retrieval, web search, mathematical computation, and RESTful API calls. Middleware manages conversation history, handles rate limits, and logs all interactions. It also offers configurable caching and retry policies for improved reliability, making it easy to build intelligent assistants, chatbots, and autonomous workflows with minimal boilerplate code.