If you're looking for a different mnml.ai alternative, NewArc.ai is worth a look. It can turn sketches into photorealistic images and 3D renders, and it's geared for creative work like architecture and interior design. NewArc.ai offers unlimited design ideas, style control and 3D rendering, and its interface is designed to be easy to use even if you don't have technical skills. Pricing includes a free tier, basic ($9/month), pro ($29/month) and business tiers, with student and educator discounts.
Another good alternative is Archsynth, which is geared for turning hand-drawn sketches into more polished digital imagery as fast as possible. It's got features like tileable textures, AI inpainting and text-to-image generation, all through an interface that's designed to be easy to use. Archsynth has three tiers, with the Pro tier costing $29 per month, so it's a good option if you need to get good image quality and commercial use.
If you're looking for something more specifically geared for interior design, Interior AI is a good option. It's designed for virtual staging and interior redesign, and it can handle more than 50 design styles. It's got features like Virtual Staging AI and Sketch Conversion. Interior AI offers a 2-month free trial, so you can try it out without committing to a subscription.
Last, Visoid is another good option for architectural visualization. It's designed to make it easy to create high-quality 3D imagery, letting you experiment with different materials, lighting and seasonal changes. Visoid integrates with common 3D modeling tools like Sketchup and Revit, and it's got a Pro tier costing $29 per month that's good for individuals and teams.