GPT Image Prompt is a browser-based platform focused on writing, testing, and refining AI image prompts. It provides structured prompt templates, reference-aware guidance, negative constraints, and reusable workflows for different visual tasks. Users can create prompts for product shots, ads, portraits, UI mockups, diagrams, and social visuals, then iterate on variations without starting over. The site also includes AI generation tools, a prompt library, and a workspace for managing creations, making it useful for both prompt crafting and visual experimentation.