We’ve spent a week building, where we predefined every single step. But what if you don't know the steps in advance? What if the AI needs to decide whether to search Google, check a database, or use a calculator based on the user's question? This is where we move from "Chains" to Agents. If a Chain is a fixed railroad track, an Agent is a self-driving car. It has a destination (your goal) and a se
When you have 5 unrelated questions, should you pack them into one message to the LLM, or send 5 requests simultaneously? Which is faster? Splitting into multiple independent parallel requests is almost always faster. This isn't a gut feeling — it's determined by the underlying inference mechanism of LLMs. Let's walk through the reasoning from first principles. To understand this problem, you firs