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LangChain agents, tools and functions: a practical 2026 guide to building reasoning agents, wiring up custom tools and shipping production AI apps.

Agentic RAG combines AI agents with retrieval-augmented generation for smarter multi-step answers, better accuracy and more autonomy in 2026.

Agentic workflows let LLMs reason, act, and collaborate autonomously. Learn how they work, key patterns, and how to build your first one in 2026.

Build an AI agent in Python with LangChain in 30 minutes. A step-by-step tutorial on tools, memory and the ReACT pattern for your first agent.

LangChain vs LlamaIndex vs Vercel AI SDK: compare RAG support, agents, streaming and developer experience to pick the right AI framework.