If you're looking for a service that offers pre-made templates for generating AI art, in particular for vector illustrations and isometric perspectives, Prompt Hunt is a great option. The site offers AI prompt templates for different styles, including Vector Illustration and Isometric Perspective. It can handle large language models like Stable Diffusion, DALL·E and Midjourney, so you can use it for a variety of art styles. It also offers different pricing tiers for different budgets.
Another option worth considering is Illustroke, which converts text prompts into vector illustrations (SVG) with more than 40 styles. It's pretty easy to use, with a few clicks to generate and edit illustrations. The output is scalable, editable and high resolution, so it's good for illustrations for websites, logos and icons. Illustroke lets you use the output for commercial purposes without any further permission.
SVG.io is a free AI-powered generator that turns text prompts into unique SVG illustrations in a matter of seconds. It's good for commercial use, and there are different pricing tiers if you need more. It's good for quick, easy SVG image creation, useful for graphic design and crafting projects. It's also got a variety of styles, so you can find what you like for your project.
Last, Vectorizer.AI is an AI-powered tool that converts images into SVG vectors, and it can handle a variety of output formats. It's got good vector rendering and can scale output without losing quality. It's good for logo creation, sketches and photos, so it's good for any design situation.