evolved to agentic frameworks like Lang-chain

LangChain transforms static LLM prompts into autonomous agentic workflows that reason, use tools, and execute complex tasks.

Agentic frameworks represent the shift from basic RAG pipelines to autonomous loops where models like GPT-4 or Claude 3.5 Sonnet act as reasoning engines. LangChain provides the essential orchestration layer (LangGraph) to manage state, memory, and tool-calling across multi-step processes. By integrating over 700 integrations and specialized modules for document loading and vector stores, it allows developers to build systems that don't just answer questions but actively solve problems by browsing the web, writing code, or updating databases.

https://www.langchain.com