ArkoAI vs Fenestra

ArkoAI turns architectural models and active views into AI-generated renders. It connects with Rhino, SketchUp, and Revit, and users of SketchUp or Revit can render directly from the view open in the modeling software. Discipline and style controls guide the generated image. The SketchUp plugin supports versions 2021–2026 on Windows and macOS; the Revit plugin supports versions 2021–2026.

ArkoAI is available on macOS, Windows, and the web. It offers a free trial but no free plan, followed by monthly or yearly subscriptions that can be updated or canceled at any time. Each tier includes a fixed monthly quota of high-priority renders. The Pro toolset includes seed settings and negative prompts for the basic model, high-quality resolution settings, and the subscriber-only Pro Model, described as retaining geometry. The pricing page lists a 608-pixel maximum image height for the free basic model and an average image height of 768 pixels for the Pro Model. Users own their renders, and final outputs are stored on the user's device. ArkoAI says it does not retain inputs or outputs on its servers after a session or task, though data may be sent to third-party providers for real-time processing.

Fenestra is a browser-based studio that turns architectural sketches, CAD drawings, photos, and 3D models into renders and animations. It accepts prompts and uploads including JPG, PNG, WEBP, PDF, GLB, FBX, and 3DM, with workflows for Revit, Rhino, and SketchUp. Users can create, edit, enhance, and animate designs through natural-language prompts and cinematic presets. Realtime image generation runs at 15+ FPS while the camera, prompts, or styles change. Its Video tool turns a still render, sketch, or photo into a flythrough using pan, dolly, or orbit moves. The homepage advertises 71 AI models for image, editing, and video work. Fenestra runs entirely in a browser without a plugin, render-engine setup, or dedicated GPU. A free plan is available; Individual costs $8 a month when billed yearly, with 200 credits monthly. Pro, Studio, and Team add credits and collaboration features, while Enterprise uses unlisted pricing. Pro, Studio, and Team are private by default, and Fenestra says it does not train on customer data.