Question: Is there a tool that can generate test images quickly based on text prompts?

If you need a tool to generate test images rapidly based on text prompts, QuarkIQL is a great choice. It employs large image diffusion models to generate images based on user prompts, so it's a good way for programmers to test computer vision APIs. QuarkIQL also has a query history so you can try different prompts without having to start over.

Another great option is ZMO, an AI image generation system that generates high-quality images from text prompts. It has a range of tools, including an AI anime generator and an AI photo editor, so it's good for both pros and amateurs. ZMO is fast to respond and generates high-quality images, and it offers both free and premium versions.

For a quick and simple solution, ImgGen is a free online AI image generator that generates high-resolution images up to 4096 x 4096 in size. It comes with a range of photo editing tools and doesn't require you to sign up or add a watermark, so it's great for generating high-quality images for creative projects or professional use when you need something fast.

If you prefer to run something yourself, DeepMake is an open-source generative AI-powered content creation system that runs on your own PC. It includes text-to-image generation, face and object masking, and image upscaling, so you can have full control over the creative process without relying on cloud services or paying for usage.