Three AI image models, the same Blender scenes

By Valdemar Kobelis, who builds Partilock. Updated 2026-11-01.

Partilock uses Nano Banana 2.1. We sent the same Blender scenes, in day and dusk, to it, Seedream 4.5 and FLUX depth. Nano Banana kept the building best. Seedream added storeys and windows. FLUX barely changed the image at all.

Side by side

Each row is one scene. Left to right are the Blender model, Nano Banana 2.1, Seedream 4.5 and FLUX depth.

Open office, day

Grey Blender model of an open office with a long window band — Model

Nano Banana render of the open office with the same window band — Nano Banana 2.1

Seedream render of the office with an added upper storey and new windows and doors — Seedream 4.5

FLUX render of the office that still looks like the grey model — FLUX depth

Seedream added an upper storey with new windows and doors and turned the window band into a blue wall. FLUX kept every edge and returned something close to the grey model.

Timber cabin, day

Blender model of a timber cabin with a glazed gable — Model

Nano Banana render of the cabin with the same gable glazing and door — Nano Banana 2.1

Seedream render of the cabin with an added roof window — Seedream 4.5

FLUX render of the cabin with the gable glazing pushed up into the roof — FLUX depth

Seedream added a roof window. FLUX pushed the gable glazing up into the roof and added a panel beside the door. Nano kept the gable, the door and the deck.

Flat-roof villa, day

Blender model of a long flat-roof villa with a wide window — Model

Nano Banana render of the villa with the same wide glazing — Nano Banana 2.1

Seedream render of the villa seen from a rotated angle with a low wall added — Seedream 4.5

FLUX render of the villa, still grey, with a slit window added on the side — FLUX depth

Seedream rotated the view to show the side wall and added a low edging wall. FLUX added a slit window and stayed grey. A different angle means the image no longer matches the drawings it sits next to.

Apartment block, dusk

Blender model of a five-storey brick apartment block with balconies — Model

Nano Banana dusk render of the apartment block with the same balconies — Nano Banana 2.1

Seedream dusk render with a chimney and extra doors added and a wider framing — Seedream 4.5

FLUX output, still a grey model in daylight, with side windows added — FLUX depth

Seedream added a chimney, side windows and a second front door, and pulled the camera back. FLUX added side windows and a canopy and didn't produce a dusk image at all.

Kitchen, day

Blender model of a kitchen with an island and wall cabinets — Model

Nano Banana render of the kitchen with the same island and window — Nano Banana 2.1

Seedream render of the kitchen with a gabled ceiling added — Seedream 4.5

FLUX render of the kitchen, still close to the grey model — FLUX depth

Seedream added a gabled ceiling. In the dusk run of the same kitchen it opened the room onto a terrace with a neighbouring building outside.

What this means if you render from Blender

Depth alone doesn't lock a building. Seedream got the same depth image and still added storeys, chimneys and windows.
A model that never changes anything may not render anything. FLUX at its safest setting left the clay look in place.
Even the best model can change the building. That's why we check every render. The drift guide shows those cases and how to spot them.

Partilock uses Nano Banana 2.1 with a check on every render. See the workflow or install it.