I use OpenRouter.ai frequently for LLMs and wanted a similar unified interface for image generation models. Since I couldn't find exactly what I needed, I built Image Router.
GitHub: https://github.com/DaWe35/image-router Product Hunt: https://www.producthunt.com/posts/image-router-beta Image Router: https://ir.myqa.cc/
It provides a single API and interface to access multiple image generation models (currently 27, with 3 available for free). The goal is to make switching between different image models effortless.
I do not store any generated images on the server, so you'll need to download any images you want to keep permanently. (Some image links might expire after an hour, while others are stored in your browser's local storage)
It's still in beta, so feedback is very welcome. Happy to answer any questions here.