---
title: Chat CAD
emoji: 🚗
colorFrom: blue
colorTo: indigo
sdk: docker
app_port: 7860
pinned: false
license: cc-by-nc-4.0
---

# Chat CAD — design a car in 3D, then test it like an engineer

Describe or sketch a car → get a real 3D model you can edit part-by-part (hood,
doors, roof, bumpers, glass) → an AI photoreal concept render → and run neural
engineering surrogates on it: aerodynamic drag, surface pressure (Cp), wall shear
stress (WSS), and a 3D crash deformation.

**Hardware:** runs on **CPU basic (free)** for the 3D car, part editing, drag/Cp/WSS
and the 3D crash. Set hardware to a **GPU (T4)** to enable the SDXL photoreal render
(it needs a GPU). Paste your own Anthropic or Google AI key in the UI for the
natural-language agent; nothing is stored server-side.

Surrogates trained on DrivAerNet / DrivAerNet++ (Elrefaie, Dai & Ahmed, CC BY-NC
4.0) — non-commercial research/demo. Built by Samarjith Biswas, PhD —
samarjithbiswas.com.