ChatGPT isn’t just a search box—it’s a collaborator you can train. The key is giving it context. Two simple features make this happen: custom instructions and memory. Custom instructions let you set a default working style—your role, preferred tone, output format, and guardrails. Think of it as telling your AI assistant how to behave from the get-go. Memory, on the other hand, learns from what you share over time, storing recurring details like your projects or preferences so you don’t have to repeat yourself. You can even ask what it remembers or tell it to forget something. Small tweaks—like saying you’re a finance manager who wants concise bullet points—can dramatically improve results. There’s also a new tool called skills for turning repeat tasks into reusable workflows. Why it matters: As AI becomes a daily tool, learning to personalize it is the difference between a generic chatbot and a truly productive partner. These features make AI feel less like magic and more like a reliable teammate that adapts to how you work.