Question: I need a tool that can produce realistic images using various AI models, such as Stable Diffusion and DALL-E 2.

If you want a utility that taps into a variety of AI models, including Stable Diffusion and DALL-E 2, NightCafe is a good option. NightCafe is an AI art generator service with a free tier that offers unlimited base Stable Diffusion creations and other features that can be purchased with credits. The service supports other AI models, including CLIP-Guided Diffusion and VQGAN+CLIP, and has a community with daily AI Art challenges. It offers web and mobile generators so you can use it anywhere.

Another powerful option is Image App, which marries multiple AI technologies to generate art, chat and train models. It supports up to 30 models and styles for generating images, including Stable Diffusion and DALL-E. Image App also offers FaceTune for portraits, AI Photobooth for selfies, and the ability to train your own models from images you upload. With three pricing tiers, it's good for hobbyists and businesses.

If you want a lot of advanced features, Aitubo is a full-featured suite for generating and editing images and videos. It uses Stable Diffusion 3 to generate photorealistic images and includes tools for video generation, AI editing and upscaling. Aitubo is geared for creative work like game development, animation and photography, but offers both free and premium subscription options.

And getimg.ai offers a variety of tools for generating and editing images, including an AI Generator, Image to Video conversion and DreamBooth for training your own models. With support for more than 80 community-trained models and several pricing tiers, getimg.ai is good for everything from architecture to art.