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May 18, 2026
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MidJourney Prompt Generator is a generic category name that refers to the broad class of tools, custom GPTs, and prompt templates that help users compose effective text prompts for Midjourney, the generative AI image generation service. There is no single canonical product with this name. Multiple unrelated tools and community-built ChatGPT custom GPTs use variations of the title "Midjourney Prompt Generator," and many guides describe how to turn ChatGPT itself into a prompt generator for Midjourney through system prompts.
For background on the underlying image generation service that these tools target, including its prompt syntax, parameters, model versions, and history, see the main article: