If you're looking for a different Architect AI alternative, NewArc.ai is another good option. It can convert sketches into photorealistic images and 3D renders, and it's geared for creative pros in architecture, interior design and automotive. The service can generate a range of design variations based on your initial input and has relatively simple interfaces so you don't need to know how to code. Pricing is on a sliding scale, with a free option and plans that cost $9 per month and up to $39 per month.
Another good option is mnml.ai, which is geared specifically for architects and interior designers. It has a range of AI tools, including Sketch to Image AI, Exterior AI, Interior AI, Landscape AI and Concept Generator. The tools can generate photorealistic renders and variations, and they integrate with common 3D modeling software like Sketchup and Revit. mnml.ai has tiered pricing options, including a free version, so it's good for hobbyists and pros.
If you want a more extensive suite of tools, check out 3D AI Studio. It can convert text or images into 3D assets, including models, animations and textures. It's got tools like Text to 3D, Image to 3D, AI Texturing and Automatic LODs. The interface is relatively simple, and the system is designed for speed, so it's good for game developers and animators.
Last, Interior AI is geared for interior design and virtual staging. You can upload photos of a room and select from more than 50 design styles to generate photorealistic renderings. The service has Virtual Staging AI, 3D Flythroughs and Sketch Conversion, so it's good for real estate listings and interior design projects. It's got a 2-month free trial, and you can try different design modes, so Interior AI is a good option if you want quick, professional interior design results.