FORMAS.AI unveils CARTESIAN: a native agentic 3D modeller for the physical world, where editable geometry meets spatial design reasoning
The preview brings advanced AI models and editable geometry with the actual physical properties into one workspace for architecture and product design. Early access begins 31 October 2026.
2 October 2026 — FORMAS.AI today unveiled a preview of CARTESIAN by FORMAS, an AI-assisted platform for early-stage architecture, interiors, furniture and product design. CARTESIAN connects 3D creation with design problem-solving at the stage when spatial requirements, materials, environmental conditions and design intent can be considered together. Designers can begin with photographs, sketches, written briefs or existing models, then use conversation to develop with precision their individual components as ideas take shape.
Restaurant axonometric: architecture, furniture and objects organised as editable components. Image: FORMAS.AI.
AI can produce a compelling image of a building or object, but developing that idea into a model brings further questions: how parts fit together, which constraints matter and what should change as the design develops. CARTESIAN gives designers an editable project in which to investigate those questions, carrying requirements and references into each revision.
From AI visualization to native model views in CARTESIAN. Image: FORMAS.AI.
“The technology behind it can be incredibly complex. The experience should not be,” said Yiping Goh, co-founder and CEO of FORMAS.AI.
CARTESIAN is designed to make 3D creation more accessible while giving experienced designers greater scope to explore ideas, exercise judgment and develop proposals with clients and collaborators.
At its core is CARTESIAN’s own CAD kernel layer and geometric toolkit, built for AI agents. Agents can discover supported tools, construct solids and freeform surfaces, and inspect and revise geometry through programmatic operations. Models can be organised into named components, layers and assemblies, with relationships that help describe how parts belong together. This supports progressive development from overall form to individual elements and connections.
Studies from urban infrastructure to furniture, organised as editable components. Image: FORMAS.AI.
“These relationships give geometry meaning and help preserve design intent as the model changes,” said Carlos Bañón, co-founder of FORMAS.AI.
CARTESIAN’s orchestration system coordinates multiple AI models such as OpenAI’s GPT-6 Astra and Claude Opus 5.5, and other specialist agents across reference interpretation, brief development, geometric authoring and review. Independent improvements can be developed in parallel, then combined through geometry checks within the shared model. Rhino and Blender integrations complement this system with additional CAD and mesh workflows. Project requirements and source references carry context between modelling activities.
Environmental studies feed into this agentic loop. Agents can request targeted inspections, measurements or studies, then use the returned information to inform subsequent modelling decisions. Sunlight, shadows, and realtime wind analysis help designers investigate how form, orientation and spatial organisation respond to their surroundings. Mechanical modules for motion and articulated assemblies are being integrated to broaden these possibilities.
CARTESIAN by FORMAS supports concept development for furniture, products and layered structural assemblies, including studies of joints and connections. Designers can explore material thicknesses, dimensions, spacing and assembly relationships as design constraints, preparing ideas for real-life prototyping and further development in digital manufacturing workflows. These studies help investigate feasibility.
Live connections with Rhinoceros and SketchUp are natively integrated, supporting model updates and controlled transfers between applications. File exchange includes DXF import and export for AutoCAD workflows and IFC import and export for BIM workflows, alongside STEP export for supported solid models and STL export for mesh-based prototyping. Availability and fidelity depend on the model and installed integrations.
CARTESIAN’s desktop rollout is planned in phases for macOS and Windows, with expanded access planned from 31 October 2026. The preview waitlist is open at formas.ai/cartesian/waitlist, with priority for FORMAS Founding Circle and Studio members and strategic partners. Studios interested in early-access collaborations can contact cartesian@formas.ai.
FORMAS.AI develops an AI-native design workspace for architects, interior designers and product designers. The company raised an oversubscribed US$3.98 million pre-seed round led by Vertex Ventures Southeast Asia & India, won first prize at SuperAI Genesis 2026 and TOP10 in Trimble 0-60 Challenge.
