OpenAI lets you build custom GPTs—tailored versions of ChatGPT designed for specific tasks. Instead of starting from scratch every time, you can set up a GPT with your own instructions, upload relevant files, and enable tools like web search or data analysis. This means less re-explaining and more consistent outputs, perfect for workflows you repeat often, like drafting reports, answering FAQs, or analyzing data. The key is to focus on tasks that are predictable and recurring—think knowledge bots, writing assistants, or project helpers. Building one is simple: open GPTs from the sidebar, use the Create tab to describe your needs, or dive into Configure for precise control. Why it matters: Custom GPTs turn ChatGPT from a one-off tool into a reliable, personalized assistant, saving time and ensuring consistency across teams and projects—a shift that could redefine how we automate knowledge work.