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Posted inAI & LLMs AI Agents in PHP Series Chatbots & Support Bots MySQL & Databases PHP Tutorials What Is an AI Agent

From Answering to Acting: What Makes an AI Agent

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By Tejas P Mehta October 21, 2026

A customer opens the Nimbus chat window and types: "Hi, I bought the Pro annual…

Posted inAI & LLMs Grounded Generation PHP Tutorials Prompt Engineering RAG Tutorial Series Retrieval-Augmented Generation

Episode 6 — Generation: Grounded Answers with Citations

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By Tejas P Mehta July 23, 2026

The last mile Five episodes of groundwork come together here. We can load documents, chunk…

Infographic comparing an LLM answering from memory versus an LLM using RAG to read from a knowledge base

Posted inAI & LLMs PHP Tutorials RAG Fundamentals RAG Tutorial Series Retrieval-Augmented Generation

Episode 1 — What Is RAG, and Why Should You Care?

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By Tejas P Mehta July 23, 2026

The problem, in one support ticket Imagine a customer opens a chat on Nimbus's website…