Harth vs RenderMage

Harth is a browser-based workspace for architecture practices to design, research, collaborate on, and present projects, with AI agents working on building data. It imports Revit, Archicad, SketchUp, and IFC models while preserving elements and coordinates. About 40 discipline-specific agent skills address areas such as structure, envelope, interiors, and analysis. For site context, it offers 3D satellite terrain, nearby-building imports, boundary tracing, geolocation, and sun studies. Users can render a model view, apply masking and lighting presets, and upscale images for print. Teams can work together using live cursors, presence, threaded comments pinned over 3D, and project voice. Harth also converts 360-camera footage into an explorable, measurable 3D scan, with processing stated at one to two days. Exports include PDF, image, and 3D files, 360-degree views, and recorded walkthroughs. All plans include the full workspace and differ by AI usage; monthly credits can be topped up with packs. Free includes 700 credits per month; Plus is $59 per month for 5,000 credits, and Pro is $149 per month for 15,000.

RenderMage is a browser-based AI architectural visualization studio for architects, interior designers, and students. It generates architectural renders up to 2K from viewport captures, floor plans, hand sketches, or reference photos. Users can describe changes in natural language, edit selected areas with inpainting, and choose photorealistic, watercolor, sketch, or Anime styles, as well as custom prompts and reference images. The browser workflow converts uploaded floor plan images into editable 3D wall layouts. Interior3D lets users place furniture, test materials, adjust atmospheres, and create interior concept visuals. RenderMage also offers architectural videos in 720p and 1080p, with a free upscaler to 4K. RM_Sync connectors are listed for SketchUp, Blender, and Archicad; other 3D tools can be used by uploading viewport screenshots. The free Studio plan includes 5 AI Credits. Paid options include a 5.00 USD one-time Booster Pack and monthly plans starting at $10 a month. The comparison table says VR or panorama support is not available.