Prompt Variables

Prompt variables act like blanks in a template, allowing you to swap in different words or phrases each time you use the prompt. For example, in a prompt like “Write a summary about {{topic}},” the variable {{topic}} can be replaced with any subject you choose. This makes it simple to create one prompt that works for many different needs. Variables are especially useful in AI tools that let you automate or personalize content, saving time and reducing repetitive work.

Understanding prompt variables helps you create more dynamic and efficient AI interactions. They let you reuse prompts for different tasks, personalize outputs, and streamline workflows—making your work with AI faster and more adaptable to changing needs.

To use prompt variables, first define the variable name—something easy to remember, like {{name}} or {{steps}}. Insert the variable into your prompt where you want the custom information to appear. When you run the prompt, the AI will replace the variable with the value you provide. For example, if your prompt is “Explain {{concept}} in simple terms,” and you set {{concept}} to “machine learning,” the AI will generate a response about machine learning. Many AI platforms highlight variables in the prompt editor, making them easy to spot and update.

Prompt template: “Write a product description for {{product_name}} targeting {{audience}}.”

If you set {{product_name}} to “wireless headphones” and {{audience}} to “college students,” the AI will generate a description tailored to that product and audience. Change the variables, and you instantly get a new, relevant result.