Turn simple ideas into optimized prompts for FLUX, Stable Diffusion, Sora, and 736 AI models. Better prompts = better outputs. Free, instant, no signup required.
No signup required. Free to use.
Writing prompts for AI image and video generators is an art. The difference between "a cat" and a detailed prompt with lighting, composition, camera angle, and style can be the difference between a mediocre output and a stunning one. Our AI prompt generator analyzes your idea and builds an optimized prompt tailored to your target model.
Type what you want in plain language. "A product photo of sunglasses" is enough, or get specific. The more context you give, the more precise the output.
Select your target model (FLUX, Seedream, Sora, etc.) and optional style presets. Each model has different prompt syntax and strengths - we optimize for the one you pick.
Receive a detailed, model-optimized prompt with negative prompt, recommended settings, and a one-click "Try it" button to generate the image on Runflow.
Building image generation into your product? Generate optimized prompts programmatically via our API. Same prompt engine, production-ready.
See our API documentationGenerate consistent product photography prompts at scale. White backgrounds, lifestyle shots, seasonal campaigns - get the prompt right once, generate thousands.
Try our Product Scoring toolExplore creative directions faster. Input a concept, get prompts for multiple styles and models. Compare outputs side by side.
Generate social media visuals, thumbnails, and video concepts. Our prompt generator optimizes for the specific model you are using - FLUX for images, Sora for video.
This tool writes the prompt. Runflow generates the image. Sentinel scores the quality. One platform - from idea to production-ready output.