Try It Live

Run the pipeline on your own facade

Upload a street-level building photo (or pick a sample). Grounded-SAM crops the facade, then GPT-4o reads its structured attributes for circular-construction planning. You supply your own OpenAI key — it stays in your browser.

Used only in your browser, sent directly to OpenAI, never stored or logged. Cleared when you close the tab. Get a key · each read costs a few cents on your account.

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Drop a facade photo
or click to browse · JPG / PNG · a clear, front-on building face works best
No photo handy? Try a sample:
Stage 1

Image capture

Street-level facade photo as input

Stage 2

Grounded-SAM

Detect & segment the facade → crop

Stage 3

GPT-4o read

GPT-4V successor → structured fields

No facade analyzed yet.
Add your key and an image on the left, then run the analysis to see material, condition, typology, and reuse signals.