LangChain vs. LlamaIndex (2026): Which AI Framework Should You Choose?

The LLM ecosystem exploded in 2023–2024 and in 2026 it’s matured into a practical toolbox for building real AI apps. If you’re building retrieval-augmented systems, chatbots, or agentic apps, two framework names come up again and again: LangChain and LlamaIndex…
