Zillow 15100480: 876 46th Ave, San Francisco: Gemini 3.1 Progoogle/gemini-3.1-pro-preview · SVG and JSON interfaces

Strengths

• All four visited spaces (Hallway/Foyer, Living, Dining, Kitchen) present, correctly named, nothing invented
• Camera sequence reproduced exactly: front door -> hallway -> living (archway) -> dining (wide archway) -> kitchen -> exterior/balcony door
• Living-Dining-Kitchen correctly stacked front-to-back with the living room on the street side and the hallway alongside on the correct side
• Balcony door placed on the kitchen wall away from the hallway, matching the real balcony position
• Overall footprint 7 x 13 m is very close to the true 7.6 x 13.4 m visited area; dining and living sizes near-correct

Errors

• Fireplace placed on the hallway-side wall of the living room instead of the far side wall
• Living-room (arched) window put on the far side wall (where the fireplace really is) rather than on the street-facing end
• Hallway drawn as a short 2 x 4 m stub, so its openings to the Dining Room and Kitchen and its continuation to the bedrooms are missing
• Entry/Foyer not distinguished (front door enters the end of the corridor rather than a foyer beside the living room)
• Balcony omitted as a room; kitchen slightly too shallow and all three main rooms given identical width though the living room is really wider

## Reasoning **Orientation.** The model stacks Living room (top) → Dining room (middle) → Kitchen (bottom), with the Hallway at the top-left beside the living room and the front door on the hallway's top (outer) wall. Ground truth has the street-facing Living Room/Foyer/Entry at the *bottom* of the page, Dining behind it, Kitchen behind that, and the hallway running up the *left* side. So the model's plan is flipped along the depth axis (a mirror about the horizontal axis): the room order is reversed front-to-back while the hallway stays on the same lateral side. Under a pure 180° rotation the hallway would have to be on the right, so this is a **mirrored** rendition, which is permitted; the internal arrangement is what matters. **Room inventory.** Hallway, Living room, Dining room, Kitchen are all present and correctly named — the four spaces the camera actually walked (Foyer is effectively absorbed into the "Hallway", which is defensible since Zillow itself merges the Foyer into the Living Room polygon). The Balcony is not drawn as a room, only implied by a "door to exterior" in the kitchen; the Entry is likewise only a front door. No invented rooms. **Topology.** The camera sequence Foyer/Hallway → Living → Dining → Kitchen → Balcony is reproduced exactly: exterior door into Hallway, archway Hallway→Living, wide archway Living→Dining (matching the real wide opening between them), opening Dining→Kitchen, and a door Kitchen→exterior on the far (right) wall where the real balcony is. That is the whole visited chain correct. Losses: the real hallway is a long 13 m corridor that also opens onto the Dining Room and the Kitchen (and continues to bedrooms/stairs); the model's hallway is a small 2×4 m stub touching only the living room, so the Hallway↔Dining and Hallway↔Kitchen adjacencies are missing, and the front door in truth comes in through an Entry/Foyer at the street end beside the Living Room rather than off the end of a corridor. **Placement.** Correct: the three main rooms in a single front-to-back file, Living on the street side, Kitchen at the deep end, Dining sandwiched between them, hallway alongside on the correct lateral side, balcony door on the kitchen wall away from the hallway (matches the real balcony at the kitchen's right-hand wall). Wrong: the fireplace is drawn on the hallway-side wall of the living room, whereas in truth it sits on the far side wall (opposite the hallway); the living room window is put on that far wall instead. The hallway also doesn't extend alongside dining/kitchen. **Proportions.** Overall footprint 7 m wide × 13 m deep versus the true 7.6 × ~13.4 m for the visited part — very close. Living 5.0×5.0 (true ~5.9×4.3, L-shaped with foyer, so ~6 m deep — acceptable), Dining 5.0×4.0 (true 4.5×3.5 — good), Kitchen 5.0×4.0 (true 4.5×5.3 — kitchen slightly under-deep). The model makes all three rooms the same width, whereas the real Living Room is noticeably wider (it spans across the hallway line), and the hallway is far too short. **Features.** Present and plausibly placed: dining table (with console table), kitchen range and refrigerator along the deep kitchen wall, kitchen table, sofa/two armchairs/coffee table in the living room, balcony/exterior door off the kitchen, front door into the hallway/foyer, living-room window (arched per the description). Misplaced: fireplace on the wrong (hallway-side) wall, and the living-room window on the wall where the fireplace actually is rather than on the street-facing end. No sink/counters in the object list (mentioned only in prose), and no balcony polygon. ## Scores

## Description The video shows a walkthrough of a house floor, starting at the front door. The camera enters a hallway. To the right is the living room, which features a large arched window, a sofa, two armchairs, a coffee table, and a fireplace. The living room connects to a dining room through a wide archway. The dining room has a round table with chairs and a console table. From the dining room, the camera moves into a kitchen. The kitchen has wooden cabinets, a stainless steel range, a refrigerator, a sink, and a small round dining table with chairs. There is a door in the kitchen leading to an exterior balcony or walkway. The camera path goes from the entrance hallway, into the living room, through the dining room, and into the kitchen, ending at the exterior door.

Strengths

• All four main visited spaces (hallway/foyer, living room, dining room, kitchen) are named with no invented rooms
• Camera sequence front door → hallway → living room → dining room → kitchen → exterior door is traceable and consistent
• Correct Living–Dining and Dining–Kitchen openings, and a balcony/back door off the kitchen's exterior wall
• Kitchen placed at the deepest end of the plan, front door and living room on the street side
• Good object inventory: fireplace, sofa, two armchairs, coffee table, round dining table, stove, fridge, kitchen table

Errors

• Kitchen drawn beside the Dining Room, in the strip that actually holds the long hallway/stairs/bathrooms, instead of directly behind the dining room
• Hallway reduced to a short stub at the entrance rather than a corridor running the full depth alongside dining room and kitchen
• Missing the Hallway–Kitchen opening
• Fireplace placed on the living room's hallway-side wall instead of the far exterior side wall
• Arched living-room window not drawn; Balcony not drawn as a room; Foyer/Entry not identified
• Footprint drawn nearly square with two large unlabelled voids, losing the narrow 7.6 × 14 m deep shape; living room drawn square rather than elongated

## Reasoning **Orientation.** The model's plan puts the front door at the top centre; the ground truth has the Entry/street side at the bottom of the page. So the model's drawing is roughly a 180° rotation of the truth. However, the rotation is not internally consistent: in the truth, the Living Room, Dining Room and Kitchen all lie on the *same* (right/east) side of the long hallway, in sequence front→back, whereas the model puts the Living Room on one side of the hallway and the Dining Room/Kitchen on the other. So part of the plan reads as mirrored relative to the rest. **Room inventory.** The model labels Hallway, Living Room, Dining Room, Kitchen — four of the five visited spaces. The Foyer is absorbed into "Hallway" (defensible, since the hallway does start at the foyer), and the Balcony appears only as a "Back Door" on the kitchen wall rather than as a room. No invented rooms are labelled, but two large areas of the footprint (top-left and bottom-right) are left blank and unlabelled, which reads as unresolved space rather than an error per se. **Topology.** Most edges are right: Front Door → Hallway; Hallway ↔ Living Room; Hallway ↔ Dining Room ("straight ahead"); Living Room ↔ Dining Room (they share the wall at the pink room's right edge); Dining Room ↔ Kitchen; Kitchen → exterior door (balcony). The truth's Hallway ↔ Kitchen opening is missing (the kitchen's corner only just grazes the hallway). The camera's sequence Foyer → Hallway → Living → Dining → Kitchen → Balcony can be traced on the model's plan without contradiction, which is the main thing. **Placement.** Correct: front door and living room on the street side; kitchen at the deepest part of the plan; balcony door on a kitchen exterior wall away from the hallway. Wrong: in the truth the Kitchen sits *behind* the Dining Room in the same band (same x-range), with the hallway, stairs and bathrooms filling the narrow left strip; the model instead puts the Kitchen *beside* the Dining Room, occupying the strip where the hallway/bath/stairs actually are, and leaves the true living-room/rear-right area blank. The hallway is drawn as a short stub between the front door and the living room instead of a long corridor running the full depth alongside dining/kitchen. The living room also fails to span the front width as it does in the truth. **Proportions.** The footprint is drawn nearly square (12 × 10 in the object list) with ~40 % blank, whereas the visited part of the truth is a narrow, deep 7.6 × 14.1 m slab. Relative room sizes are reasonable (Living Room largest, Kitchen next, Dining Room smallest; kitchen 4×6 vs truth 4.5×5.3, dining 4×4 vs 4.5×3.5), but the living room is drawn 6×6 (square) versus the truth's clearly elongated 5.9 × 4.3, and the overall depth-to-width character is lost. **Features.** Present: fireplace (but placed on the living room's hallway-side wall; in the truth it is on the opposite, far exterior wall), two armchairs, sofa, coffee table, round dining table, stove, fridge, kitchen table, front door, back/balcony door. Missing from the drawing: the arched front window (mentioned in prose only), the balcony itself as a small outdoor square off the kitchen's side wall, kitchen counters, the Entry/Foyer marking. ## Scores

## Description The video shows a first-person walkthrough of a house floor. The camera starts at the front door, entering a hallway. To the right is a living room with a large arched window, a fireplace, a sofa, a coffee table, and two armchairs. Straight ahead from the entrance is a dining room with a round table and chairs. To the left of the dining room is a kitchen with wooden cabinets, a stove, a refrigerator, and a small round table with chairs. The kitchen has a door leading to an outdoor balcony or walkway. The camera walks through these rooms, showing their layout and connections. ## Objects ```json [ { "name": "floor", "x": 0, "y": 0, "w": 12, "h": 10, "rotation_deg": 0, "confidence": "high", "notes": "Overall floor footprint" }, { "name": "hallway", "x": 4, "y": 0, "w": 2, "h": 4, "rotation_deg": 0, "confidence": "high", "notes": "Entrance hallway" }, { "name": "living_room", "x": 6, "y": 0, "w": 6, "h": 6, "rotation_deg": 0, "confidence": "high", "notes": "Living room with fireplace and arched window" }, { "name": "dining_room", "x": 4, "y": 4, "w": 4, "h": 4, "rotation_deg": 0, "confidence": "high", "notes": "Dining room with round table" }, { "name": "kitchen", "x": 0, "y": 4, "w": 4, "h": 6, "rotation_deg": 0, "confidence": "high", "notes": "Kitchen with cabinets and small table" }, { "name": "front_door", "x": 5, "y": 0, "w": 1, "h": 0.2, "rotation_deg": 0, "confidence": "high", "notes": "Main entrance door" }, { "name": "living_room_sofa", "x": 10, "y": 2, "w": 1, "h": 3, "rotation_deg": 0, "confidence": "high", "notes": "Sofa in living room" }, { "name": "living_room_coffee_table", "x": 8, "y": 2.5, "w": 1.5, "h": 1, "rotation_deg": 0, "confidence": "high", "notes": "Coffee table in living room" }, { "name": "living_room_armchair_1", "x": 7, "y": 1.5, "w": 1, "h": 1, "rotation_deg": 0, "confidence": "high", "notes": "Armchair near window" }, { "name": "living_room_armchair_2", "x": 7, "y": 3.5, "w": 1, "h": 1, "rotation_deg": 0, "confidence": "high", "notes": "Armchair near window" }, { "name": "living_room_fireplace", "x": 6, "y": 2, "w": 0.5, "h": 2, "rotation_deg": 0, "confidence": "high", "notes": "Fireplace on the left wall of living room" }, { "name": "dining_table", "x": 5, "y": 5, "w": 2, "h": 2, "rotation_deg": 0, "confidence": "high", "notes": "Round dining table" }, { "name": "kitchen_island", "x": 2, "y": 6, "w": 1, "h": 2, "rotation_deg": 0, "confidence": "medium", "notes": "Kitchen counter/island area" }, { "name": "kitchen_table", "x": 1, "y": 8, "w": 1.5, "h": 1.5, "rotation_deg": 0, "confidence": "high", "notes": "Small round table in kitchen" }, { "name": "kitchen_stove", "x": 0, "y": 6, "w": 1, "h": 1, "rotation_deg": 0, "confidence": "high", "notes": "Stove in kitchen" }, { "name": "kitchen_fridge", "x": 0, "y": 4.5, "w": 1, "h": 1, "rotation_deg": 0, "confidence": "high", "notes": "Refrigerator in kitchen" }, { "name": "back_door", "x": 0, "y": 9, "w": 1, "h": 0.2, "rotation_deg": 90, "confidence": "high", "notes": "Door leading to balcony" } ] ```