Deccan AI
Plans

Zillow 15100480: 876 46th Ave, San Francisco: Qwen3.8-27Bqwen/qwen3.8-27b · SVG and JSON interfaces

Input videovideo.mp4 · 83 s · 640×360 (model input; rendered at 1280×720)

task 15100480 · listing · 3D tour
Zillow 3D Home tour of a public listing (zpid 15100480). 13 equirectangular panoramas from the tour's main floor were rendered into a first-person walk: Foyer → Hallway → Living room → Dining room → Kitchen → Balcony. Forward motion between panoramas is simulated with a zoom and cross-fade.
Models received the full clip as one base64 video part via OpenRouter.

Ground truthfrom Zillow · not shown to the models

Zillow floor plan
Zillow's floor plan of this listing, cropped to the rooms the flyby visited: foyer, hallway, living room, dining room, kitchen, balcony. Bedrooms and bathrooms beyond the dashed line were never visited. Zillow calls this level Floor 2; Floor 1 is the garage below. whole floor · layout JSON · source

Plans by Qwen3.8-27BJSON rendered by us: 68.5 · SVG drawn by the model: 70.5. Use the toggle in the top bar to switch.

Qwen3.8-27B JSONqwen/qwen3.8-27b · JSON rendered by us

sofa coffee_table swivel_chair swivel_chair fireplace floor_lamp dining_table console_table range fridge dishwasher breakfast_table Entry foyer 3.0 × 3.0 m Living room 6.0 × 5.0 m Dining room 4.0 × 4.0 m Kitchen 4.0 × 4.0 m Hallway 3.0 × 6.0 m Bathroom 1.2 × 2.0 m 2 m rendered from the model's JSON · walls dark, doors white gaps with swing, archways dashed, windows blue
68.5
Judge score
A topologically sound, feature-rich reconstruction of the visited rooms, but mirrored, with the kitchen shifted sideways instead of behind the dining room and a squat footprint instead of the real narrow, deep plan.
Rooms w20
8
Topology w30
8
Placement w20
6
Proportions w15
4
Features w15
7
Orientation: Mirrored (opposite handedness): after rotating the model's plan 180° so depth runs the same way, the Foyer/Hallway flank falls on the right where the truth has it on the left.
Living Room 5.9 × 4.3 m Kitchen 4.5 × 5.3 m Dining Room 4.5 × 3.5 m Bathroom 1.6 × 3.4 m Primary Closet 2.9 × 1.0 m Stairs (Down) Closet 1.6 × 0.8 m Balcony 1.2 × 1.0 m Bathroom 0.7 × 1.6 m Closet Entry Closet Fireplace cropped: bedrooms, bathrooms and closets beyond this line were not visited 5 m Floor 2 (visited part) · Zillow floor plan, rendered from floor_map_layout.json
Ground truth for comparison, visited rooms in yellow.
Judge's reasoning
Strengths
  • All visited interior rooms present and correctly named (Foyer, Living, Dining, Kitchen, Hallway) plus the real hallway bathroom, with no invented rooms
  • Connectivity is almost complete and the full camera path Foyer→Hallway→Living→Dining→Kitchen→Balcony is walkable on the plan
  • Hallway correctly modelled as a long strip running alongside the main rooms off the foyer
  • Balcony door correctly on the kitchen's outer (non-hallway) wall; front door into the foyer
  • Rich, accurate feature/object list: fireplace, arched windows, dining table, range, fridge, dishwasher, breakfast table
Errors
  • Plan is mirrored relative to the truth (hallway on the wrong flank)
  • Kitchen placed lateral to the Dining Room instead of behind it, breaking the Living→Dining→Kitchen front-to-back spine and losing the hallway–kitchen adjacency
  • Global footprint wrong shape: ~11 m wide × 9 m deep instead of ~7.6 m wide × 14 m deep
  • Hallway drawn 3 m wide (truth ~0.9 m) and foyer squared off at 3 × 3 m
  • Fireplace put on the living room wall shared with the foyer rather than on the far side wall; arched window on the wrong wall
  • Balcony omitted as a room even though the camera stepped onto it
## Reasoning **Orientation / chirality.** In the truth, with "deeper into the flat" pointing up the page, the Living Room sits at the street end, the Foyer is beside it on the *left*, the Hallway runs up the *left* edge, the Dining Room is directly behind (deeper than) the Living Room, and the Kitchen is behind the Dining Room; the Balcony and the fireplace are both on the *right* (non-hallway) side. In the model's plan, depth runs downward (Living room at top, Dining below it), so normalising by rotating 180° puts the Hallway/Foyer on the **right** of the depth axis — i.e. the model's plan is **mirrored** (with a ~90–180° rotation of the drawing) relative to the truth. And even after mirroring, the Kitchen ends up *beside* the Dining Room instead of behind it. **Room inventory.** Entry foyer, Living room, Dining room, Kitchen, Hallway, Bathroom — all real and all visited or legitimately glimpsed (the hallway bathroom does exist in the truth, 1.6 × 3.4 m off the hallway). No invented rooms. The **Balcony**, which the camera actually stepped onto, is not drawn as a room, only as a "kitchen → exterior" door (it is described in prose). Entry is folded into the foyer, which is acceptable. **Topology.** Very good. Front door → Foyer ✓; Foyer → Living room via archway ✓ (truth: Foyer archway into Living Room); Foyer → Hallway ✓; Living → Dining archway ✓; Dining → Kitchen ✓; Kitchen → exterior balcony door ✓; Hallway → Dining door ✓ (truth has hallway/dining shared wall); Hallway → Bathroom ✓. The whole camera path Foyer → Hallway → Living → Dining → Kitchen → Balcony is traversable on the model's plan. Only missing relationship: the Hallway also runs alongside the **Kitchen** in truth, which is impossible in the model because the kitchen was pushed sideways. **Placement.** Correct: foyer beside living room, hallway as a long strip alongside the main rooms on one flank, dining behind the living room, balcony off the kitchen's outer (non-hallway) wall, front door on the street flank. Wrong: the kitchen is lateral to the dining room rather than the next room back, so the linear front-to-back spine Living→Dining→Kitchen is broken; the plan is mirrored; and the fireplace is put on the living room wall shared with the foyer rather than on the far side wall (truth: right-hand end wall, opposite the foyer). The arched window is placed on the wall away from the foyer rather than on the street-facing long wall. **Proportions.** Individual rooms are decent (Living 6.0 × 5.0 vs 5.9 × 4.3; Dining 4.0 × 4.0 vs 4.5 × 3.5; Kitchen 4.0 × 4.0 vs 4.5 × 5.3). But the global footprint is badly off: the model says ~11 m wide × 9 m deep, a squat rectangle, whereas the visited part is 7.6 m wide × 14.1 m deep with the hallway continuing further. The hallway is drawn 3 m wide (truth ~0.9 m), and the foyer is 3 × 3 instead of ~2.7 × 1.7. **Features.** Fireplace present (wrong wall), arched living-room windows noted, dining table + console + chandelier, kitchen range, fridge, dishwasher, counters, breakfast table, balcony door on the kitchen's right wall (correct side), front screen/panel door into the foyer. Good feature recall, with the fireplace wall being the main geometric error. ## Scores
Model's own description
## Description The floor is a roughly rectangular, single‑storey apartment (about 11 m wide by 9 m deep) organised around a central **entry foyer** at the top‑left. The front door is a white paneled door with diamond glass inserts and a decorative blue‑topped metal screen/grille door; it opens onto the foyer. From the foyer three ways lead: an **archway to the living room** on the right, an **open passage down a long hallway** on the left, and a **doorway into the dining room** in the centre. The **living room** (right side, ~6 m × 5 m) is the largest room. Its right wall is dominated by two large arched windows looking out to the exterior; it contains a long light‑coloured sofa against the right wall, two or three swivel lounge chairs by the windows, a low dark coffee table in the centre, a floor lamp, potted plants, and a tiled **fireplace** with a wood mantel on the wall shared with the dining room. A large framed artwork hangs above the sofa. The **dining room** (centre, ~4 m × 4 m) holds a round dining table with upholstered chairs under a modern chandelier, a dark console table with art and a plant along one wall, and windows on the far wall. It connects to the living room (open archway), to the hallway (door), and to the **kitchen** (door). The **kitchen** (right‑centre, ~4 m × 4 m) has warm wood cabinetry, granite counters, a stainless steel range with hood on the back wall, a tall fridge on the left, a dishwasher, a sink, several windows, and a small round breakfast table with chairs. A door on its right wall leads out to a covered exterior **balcony/walkway** with railings and grey siding. The **hallway** (left column, ~3 m × 6 m) runs from the foyer to the back; it has a wood‑framed glass door opening to a small **bathroom** (mirror and tile visible through the glass) and several closed doors leading to bedrooms that were *not* entered in this walkthrough (so they are not drawn as rooms). Camera path: started at the front screen door, panned across the foyer into the living room, looked back down the hallway, returned through the dining room, entered the kitchen, and finally stepped out onto the exterior balcony. Uncertainties: exact bedroom count/positions (doors seen but rooms not entered), precise bathroom footprint, and exact window placements are inferred.
The model returned 6 rooms, 11 openings and 12 objects as JSON; render_plan.py drew them. plan.json
59 s · 4430 out tok · 2363 reasoning · $0.013 · finish: stop

Qwen3.8-27B SVGqwen/qwen3.8-27b · SVG drawn by the model

Kitchen Hall / Bath Dining Living Room Foyer sofa fire table range N fireplace window door
70.5
Judge score
The room set, connection sequence and most features are captured well, but the deep row-house geometry is flattened into a wide plan and the fireplace is on the wrong wall.
Rooms w20
9
Topology w30
8
Placement w20
6
Proportions w15
4
Features w15
7
Orientation: Not mirrored (handedness from the foyer — living room east, hall west, street to the south — matches the truth), but the deep Living→Dining→Kitchen chain has been rotated ~90° to lie sideways, converting the narrow 7.6x14 m deep plan into a wide 12x8 m one.
Living Room 5.9 × 4.3 m Kitchen 4.5 × 5.3 m Dining Room 4.5 × 3.5 m Bathroom 1.6 × 3.4 m Primary Closet 2.9 × 1.0 m Stairs (Down) Closet 1.6 × 0.8 m Balcony 1.2 × 1.0 m Bathroom 0.7 × 1.6 m Closet Entry Closet Fireplace cropped: bedrooms, bathrooms and closets beyond this line were not visited 5 m Floor 2 (visited part) · Zillow floor plan, rendered from floor_map_layout.json
Ground truth for comparison, visited rooms in yellow.
Judge's reasoning
Strengths
  • All visited rooms named correctly (Kitchen, Dining, Living Room, Foyer, Hall/Bath) with no invented rooms
  • Every adjacency along the camera path reproduced: Foyer-Hall, Foyer-Living, Living-Dining, Dining-Kitchen, Kitchen-Balcony, plus the Foyer-Dining opening that Zillow also shows
  • Correct handedness: hallway on the west flank of the foyer, living room east of the foyer, street wall with front door and arched window at the front
  • Good object detail: arched living-room window on the street wall, dining table + chandelier, range with hood, fridge, counters, balcony door off the kitchen
Errors
  • Overall footprint aspect inverted: wide 12x8 m instead of narrow 7.6x14 m deep, so Dining sits beside rather than behind the Living Room and Kitchen beside rather than behind the Dining Room
  • Hallway does not run alongside the Kitchen and Dining Room (missing Hallway-Kitchen and Hallway-Dining relations) and is drawn as a stub west of the foyer
  • Fireplace placed on the wall shared with the Foyer/Dining instead of the living room's far side wall
  • Balcony not drawn as a room and its door put on the kitchen's far (north) wall rather than the side wall
  • Kitchen squashed (5x3 m vs 4.5x5.3 m) and the notched front of the living room / separate Entry landing omitted
## Reasoning **Orientation / global transform.** The model keeps the street side at the bottom of its drawing (front door + arched window on the south wall, balcony door on the north wall), so it is not mirrored in the local sense: from the Foyer the Living Room lies east, the Hall west, the front wall south — exactly the GT handedness (GT: Foyer with Living Room to its east, hallway to its west, Entry to the south). However the deep back half of the plan has effectively been *rotated 90°*: in the truth the chain Living → Dining → Kitchen runs **away from the street** (down the 14 m depth), whereas the model lays it out **sideways** (Living Room east, Dining centre, Kitchen north-west), turning a 7.6 × 14 m deep plan into a 12 × 8 m wide one. So: not mirrored, but the interior chain is rotated/compressed relative to the façade. **Room inventory.** Kitchen, Dining, Living Room, Foyer, Hall/Bath are all present and correctly named — the full set of visited rooms except the Balcony, which is not drawn as a room but is represented by a "balcony_door" on the kitchen's outer wall and described as exterior. No invented rooms (the "breakfast table" and powder room are plausible inferences, not fabricated rooms). Very good. **Topology.** Every adjacency along the camera path is present: Foyer↔Hall (door arc drawn), Foyer↔Living Room (opening at the wall segment by the fireplace), Foyer↔Dining (north opening), Dining↔Living Room (door arc at the shared wall), Dining↔Kitchen (open), Kitchen↔Balcony (exterior door). That reproduces GT's Living↔Dining, Dining↔Kitchen, Kitchen↔Balcony, Living/Foyer↔Hallway, and even the Foyer–Dining opening Zillow shows. Missing: the long hallway also runs alongside the Kitchen and Dining Room in the truth (Hallway↔Kitchen, Hallway↔Dining); in the model the hall dead-ends beside the dining room and never borders the kitchen. Also the hall is drawn much shorter than the real corridor to the bedrooms (allowed, but it changes the alongside relationship). **Placement.** Correct: Living Room and Foyer on the street side, hallway on the west flank of the foyer, Dining between Living Room and Kitchen, Kitchen deepest with the balcony on its outer wall. Wrong: Dining is *beside* (west of) the Living Room rather than *behind* it, and the Kitchen is beside the Dining rather than behind it, so the hallway no longer runs alongside the main rooms and the plan's long axis is perpendicular to reality. The balcony is put on the kitchen's far wall rather than its side wall (minor). **Proportions.** Footprint 12 × 8 m vs the true 7.6 × 14.1 m — the aspect ratio is essentially inverted. Individual rooms are not bad: Dining 5 × 3.5 vs 4.5 × 3.5 (good), Living 5 × 5.5 vs 5.9 × 4.3 (roughly right area), Kitchen 5 × 3 vs 4.5 × 5.3 (squashed). The distinctive deep, narrow row-house shape and the notched living-room front are lost. **Features.** Arched window on the living room's street wall ✓, front door into the foyer ✓, dining table with chandelier ✓, kitchen range with hood, refrigerator, counters/peninsula ✓, balcony door off the kitchen ✓. The fireplace is present but placed on the *near* wall between Living Room and Foyer/Dining, whereas in truth it is on the living room's far side wall (opposite the foyer) — a clear misplacement of the single most distinctive living-room feature. ## Scores
Model's own description
## Description This is a single upper floor of a townhouse / row house. The overall footprint is roughly rectangular, about 12 m (east–west) by 8 m (north–south). The front (south) wall holds the main entrance: a white paneled door with a diamond glass insert, set behind a decorative sunburst metal screen door, with a small tiled entry landing. The back (north) wall is the exterior of a narrow open balcony / service walkway (grey clapboard, railing, skylight above) reached through a door off the kitchen. Rooms and connections: - **Entry / Foyer** (south‑center): tiled floor, opens north into the main living space and has a doorway to the west leading to a short **hallway** that runs north with several doors (a bathroom / powder room on the left, a bedroom or study at the far end). - **Living Room** (east of the foyer): large room with a big arched (round‑top) window on the south wall, a tiled fireplace with wood mantel on the west wall, a sofa, two lounge chairs, a coffee table, a floor lamp and a large abstract canvas on the east wall. It connects west to the foyer and northwest to the dining room. - **Dining Room** (west of the living room, north of the foyer): oval dining table with chairs, a chandelier, a console table with art on the north wall, and a window on the east wall. It connects east to the living room, south to the foyer, and north to the kitchen. - **Kitchen** (north‑west): L/U‑shaped wood cabinetry, stainless range with hood, refrigerator, dishwasher, granite counters, a small round breakfast table by the windows, and a door on the north wall opening to the exterior balcony. - **Hallway / Bath** (west): a corridor off the foyer with a bathroom (powder room) and a door at the end. Camera path (for context only): starts at the front door, looks into the living room and dining room, pans across the fireplace and arched window, moves through the dining room into the kitchen, then out to the back balcony, and finally back toward the hallway. Uncertainties: exact room dimensions and the precise function of the hallway doors (bathroom vs. bedroom) are inferred; the balcony is treated as exterior. Wall thicknesses and the exact position of the foyer/hall junction are approximate. ## Objects ```json [ {"name":"floor","x":0,"y":0,"w":12,"h":8,"rotation_deg":0,"confidence":"high","notes":"Overall footprint of the floor"}, {"name":"Entry / Foyer","x":4.5,"y":5.5,"w":3,"h":2.5,"rotation_deg":0,"confidence":"medium","notes":"Tiled landing at front door"}, {"name":"Living Room","x":7,"y":2,"w":5,"h":5.5,"rotation_deg":0,"confidence":"high","notes":"East room with arched window and fireplace"}, {"name":"Dining Room","x":2,"y":2,"w":5,"h":3.5,"rotation_deg":0,"confidence":"high","notes":"Oval table, chandelier"}, {"name":"Kitchen","x":0,"y":0,"w":5,"h":3,"rotation_deg":0,"confidence":"high","notes":"North-west, wood cabinets, range"}, {"name":"Hallway / Bath","x":0,"y":3,"w":2,"h":5,"rotation_deg":0,"confidence":"medium","notes":"Corridor off foyer with bath"}, {"name":"front_door","x":5.6,"y":7.7,"w":1.0,"h":0.2,"rotation_deg":0,"confidence":"high","notes":"Main entrance door + screen"}, {"name":"balcony_door","x":2.4,"y":0.0,"w":1.0,"h":0.2,"rotation_deg":0,"confidence":"medium","notes":"Door to exterior balcony"}, {"name":"arched_window","x":8.5,"y":7.7,"w":2.5,"h":0.2,"rotation_deg":0,"confidence":"high","notes":"Round-top window, living room south wall"}, {"name":"dining_window","x":6.9,"y":3.5,"w":0.2,"h":1.5,"rotation_deg":0,"confidence":"medium","notes":"Window east wall of dining"}, {"name":"kitchen_window","x":4.0,"y":0.0,"w":1.5,"h":0.2,"rotation_deg":0,"confidence":"medium","notes":"Window over sink, north wall"}, {"name":"fireplace","x":7.0,"y":3.5,"w":0.4,"h":2.0,"rotation_deg":0,"confidence":"high","notes":"Tiled fireplace, west wall of living room"}, {"name":"sofa","x":10.5,"y":4.5,"w":1.2,"h":2.5,"rotation_deg":0,"confidence":"high","notes":"Sofa against east wall"}, {"name":"coffee_table","x":9.0,"y":4.5,"w":1.5,"h":1.0,"rotation_deg":0,"confidence":"high","notes":"Low table in living room"}, {"name":"lounge_chairs","x":8.5,"y":6.5,"w":2.0,"h":0.8,"rotation_deg":0,"confidence":"medium","notes":"Two chairs by arched window"}, {"name":"dining_table","x":3.5,"y":3.5,"w":1.8,"h":1.8,"rotation_deg":0,"confidence":"high","notes":"Oval dining table"}, {"name":"console_table","x":3.0,"y":2.0,"w":2.0,"h":0.4,"rotation_deg":0,"confidence":"medium","notes":"Console with art, north wall of dining"}, {"name":"range","x":2.0,"y":0.4,"w":0.9,"h":0.7,"rotation_deg":0,"confidence":"high","notes":"Stainless range + hood"}, {"name":"refrigerator","x":0.4,"y":0.4,"w":0.8,"h":1.0,"rotation_deg":0,"confidence":"high","notes":"Fridge, west wall"}, {"name":"kitchen_island_counter","x":3.5,"y":1.5,"w":1.5,"h":0.8,"rotation_deg":0,"confidence":"medium","notes":"Counter / peninsula"}, {"name":"breakfast_table","x":4.3,"y":2.2,"w":1.0,"h":1.0,"rotation_deg":0,"confidence":"medium","notes":"Round table by kitchen windows"} ] ```
69 s · 3585 out tok · 65 reasoning · $0.010 · finish: stop