Room

A preview plus a demo. The 3D room shows the settings your words resolve to, and the preset buttons only preview, so nothing reaches real hardware. The page is explicit that music and volume are visual controls and that the demo is silent.

The panel quotes a published rate for input tokens and lists output as free, which is why a fresh call shows no cost. It also shows this-call and session totals that reset on reload, so a running estimate is easy to lose. Presets are labelled as costing nothing since they never call the API at all.

The page says to connect your key for live decisions and links to a full API inspector, so you can inspect the request yourself, and inline token and cost counters are unusual for a demo. Live mode does require a key, and the app is served from a chatgpt.site subdomain with no clear author or brand behind it.

Nothing in the demo. Six choices go out in a single request, so lights, curtains, TV, music, volume, and desk lamp are decided together, and there is no documented confidence threshold or confirmation step between the decision and the room state. Fine for a preview, not a pattern to copy into a real house.

Six choices go out in one request: lights, curtains, TV, music, volume and a desk lamp. The 3D preview shows the mood those words resolve to, and presets cover movie night, friends over, focus time and Sunday morning at zero cost.

They only preview the room and cost nothing, because they never call the API. Live decisions require connecting a key, and the page shows an API usage and cost panel with this-call and session totals that reset on reload.

The page states that music and volume are visual controls and the demo is silent; volume is shown in the room state but no audio plays. It is a settings preview rather than a working smart-home controller.