Harth vs Massing Labs

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.

Massing Labs is a web-based professional tool for architecture teams. It turns sketches, CAD exports, and 3D model views into renderings, plans, sections, elevations, and design variants. Listed tools include context plans, model photos, floor plans, props, axonometry, and a realtime canvas. Uploads can be JPG, PNG, WebP, HEIC/HEIF, AVIF, PDF, OBJ, GLTF, GLB, STL, or FBX, plus CAD exports, model screenshots, map screenshots, and hand-drawn plans. Exports from Revit, Archicad, SketchUp, Rhino, and Vectorworks are supported. Output resolution reaches 8000 px. Teams can manage projects, rename folders, and start renderings with automatic synchronization. Plans cost €10 per month for Student, €24 per month for Starter, and €66 per month for Studio; Enterprise pricing is custom. Commercial use is included, and uploaded files and generated results remain customer intellectual property.