LangChain

Software firm Codemancers has published a tutorial walking through how to implement retrieval-augmented generation, combining LangChain for orchestration, the pgvector extension for storing embeddings in PostgreSQL, and OpenAI models for generation. The piece explains how developers can ground large language model answers in their own data without leaving their existing database stack.

DXC Technology announced a deal with LangChain, an AI framework company, prompting questions about whether the stock's valuation is rising faster than its fundamentals justify. Analysts and investors are weighing how much tangible revenue the AI partnership can deliver for the struggling IT services firm, with commentary from Simply Wall Street highlighting the gap between AI-driven optimism and the company's financial reality.