"Hallucination" is the term the AI field settled on for when a language model states something false with the same fluent confidence it uses for something true. It isn't lying in the human sense — the model has no concept of what it doesn't know, so it fills gaps the same …

There's a particular kind of software project that doesn't just solve a problem — it defines the vocabulary everyone uses to talk about the problem afterward. LangChain is one of those projects. Since its debut in late 2022, it has quietly become the lingua franca of LLM application development: chains, agents …