YOSHINANI MODEL / PATCH NOTES

AI model updates

From early V0 development to the latest updates: a history of improvements to shape, colour and part connections.

YOSHINANI Model is Brick’s creation system, combining AI shape generation with conversion to real parts.

2026.10.05

V9.11.1

Large free-form creations no longer stop partway

Free-form creations in larger sizes such as extra large could be cut off and fail when the shape design took longer. We now wait for the design to finish, so larger sizes can be created.
As before, technical failures are not charged.

2026.09.28

V9.11

Inverted slopes tidy up the undersides of overhangs

Downward steps under chins, bellies and other overhangs now automatically use 2x2 inverted slopes, so the undersides angle in neatly and look less stepped from below.
Each inverted slope clips into the part above with its studs and sits against the wall behind it, so the model can still be built as-is. Credit usage is unchanged.

2026.09.28

V9.10

Smoother tops for free-form creations with slopes and curves

Stepped top surfaces on animals, vehicles and other free-form creations now automatically use 1x1 slopes, curved slopes and 45° slopes, so heads, backs and bonnets look more rounded than with basic bricks alone.
Every added part sits on real studs, so the model can still be built as-is. Credit usage is unchanged.

2026.09.28

V9.9

Free-form creations now start from a designed shape

Free-form and photo creations (anything other than houses and buildings) are now designed as a shape that emphasises recognisable features, then converted to bricks. Faces, markings and parts are easier to recognise, and creations finish sooner.
Each creation now uses up to 30 credits, charging only what is used. Technical failures are not charged.
Thin features such as wings and sails are thickened so they can be built. Saved creations and house, building and interior creation are unchanged.

2026.09.22

V9.7

Compose house shapes, roof profiles and openings freely

Exterior house designs can now combine independently sized volumes, roof profiles and openings. The supported range includes round openings, mail slots and house-shaped objects.
Designs consult part knowledge and check interior space, clear openings, connections and collisions. Curves and slopes may be represented with stepped brick geometry.
Explicit requirements take priority. Saved creations, free-form generation and existing furnished-building generation are preserved. Automatic placement of every part and physical functionality or strength are not guaranteed.

2026.09.22

V9.6.2

Find inspiration inside the creation chat

Use Find an idea beside the chat input to explore three suggestions. A theme is optional, and ideas follow your selected mode: free-form creations, houses and buildings, or interiors.
A selected idea fills the unsent input so you can edit it before starting. Suggestions cost up to 4 credits per request; opening the popup and using a prompt are free.
Suggestions are also saved in your ideas list. Starting a creation from a saved idea retains its original creation mode.

2026.09.22

V9.6.1

Corrected floor tiles, door frames and colors during exploration

Fixed certain flat floor tiles appearing as small studded bricks during exploration. Small round parts and tall door frames also use shapes and dimensions closer to their intended appearance. Some brown furniture colors no longer appear purple.
Walking now accounts for the tile width and the opening in tall door frames. Saved creations are preserved, with no regeneration or additional credits required.

2026.09.21

V9.6

More choices for house dimensions, rooms and furniture

Furnished buildings now combine unspecified dimensions, room divisions, entrances and stair positions, creating differences in how space is used as well as appearance.
Layouts are searched for furniture fit and routes between entrances, rooms and stairs. Exterior-only houses also explore unspecified proportions and window arrangements.
Explicit requirements such as floor count and colors take priority, and saved creations are preserved. Designs remain within supported shapes; a unique result on every generation is not guaranteed.

2026.09.20

V9.5.2

Clearer actions after generation

Use Explore for the current work. Floor interiors, building steps and export are grouped under View & export, with controls separate from the canvas.
Chat history now distinguishes Explore this result from Restore this version, making it clearer which action only views a past result and which replaces your current work.
On mobile, Edit with AI is labelled and placed away from the camera controls. Large creations are framed again when loading finishes. Exploration still uses no credits.

2026.09.19

V9.5.1

Walk through your creation right after generation

Added Explore in Viewer to completed chat results and the editor. Your creation opens in a new tab, ready to explore in first person.
Explore individual past results from the conversation. Touch controls and Back to editor make it easy to move between exploring and creating.
Viewing and exploring use no credits. Creations are transferred within your browser.

2026.09.19

V9.5

Updated generation for shapes, buildings and backgrounds

Updated generation for text- and photo-based shapes, building and interior plans, and video backgrounds. Conversion to real parts and saved projects are preserved.
Credit calculations now reflect current usage rates. The limits shown before generation remain unchanged, and settlement follows actual usage.
Background images generated before the update can still be recovered and settled from their original usage records after a connection loss.

2026.09.18

V9.4.3

Longer instructions, and failures that say what to change

The creation chat now accepts up to 2,000 characters everywhere. A remaining-character count appears as you approach the limit, and going over is shown before you send.
Long text used to be reused as the work name and could stop a generation from starting. The work name is now shortened automatically while your full text is still used.
Failure notices are now split by cause, such as windows and doors that do not fit, a size that is exceeded, or the castle requirement for corner turrets, so you can tell what to change.

2026.09.18

V9.4.2

Clearer reasons when a building cannot be made

When a request includes something the building maker cannot produce, the creation screen now names that specific request instead of a general notice.
For a gable roof whose ridge runs front to back, the chimney is now placed on the ridge. Asking for a left or right chimney used to fail the whole generation.
Credits are still returned when a generation fails, and buildings that already worked are unchanged.

2026.09.18

V9.4.1

Create an interior from text in the editor

Added Interior β to the creation screen for furnished studies, reading rooms and partial lofts. Describe your colors in the prompt too.
Ask for furniture-level changes such as making only the desk red, review the proposal, then apply it. Changes to saved content stop the operation instead of being overwritten.
New generation reserves up to 30 credits and AI editing up to 24, settled by usage. Photo reconstruction and physical build strength remain unverified.

2026.09.18

V9.4

A foundation for saving and editing interiors

Added the foundation for arranging furniture, partitions and partial lofts from text. The creation-screen entry point will follow.
Interior design information is saved with the project so furniture-level changes can be reviewed before applying them.
Connected generation to concurrent-edit protection and credit refunds on failure. Physical build strength has not been verified.

2026.09.18

V9.3.1

A smoother path from creating to saving and posting

Added a loading state after choosing a creation method and clearer ways back to your project after signing in again or buying credits.
Photo input now has a focused dialog with better mobile and keyboard controls.
The editor now confirms your latest edits are saved before opening the post form. If saving fails, your edits stay in place so you can retry.

2026.09.14

V9.3

Choose the structure, stairs and room arrangement

Buildings with interiors now support left or right straight stairs, central switchback stairs and an L-shaped courtyard layout. Supported structures can place living or public rooms at the front or rear on each floor.
Furniture positions and orientations adapt to rooms, with checks for access to use faces, landings and stair clearance.
New generations consider different structural preferences when choices are unspecified. Existing creations and non-building generation methods are preserved.

2026.09.14

V9.2

More combinations of windows, layouts and furniture

Buildings with interiors can now combine different window arrangements, room divisions and furniture layouts.
Added benches, large dining tables, display stands and storage shelves.
Added checks for access to furniture, stair clearance, required facilities and missing window frames.

2026.09.14

V9.1.1

More reliable editing and saving after generation

Generated creations now carry their saved state through to the editor.
Fixed save conflicts that could occur when editing immediately after generation.

2026.09.14

V9.1

Create buildings with interiors and explore each floor

House & Building now supports multi-storey buildings with interiors for cafés, bookshops, homes and offices.
Explore interiors with floor cutaways and separated-floor views.
Improved muted building colours and fixed overlapping controls on phones.

2026.09.13

A dedicated way to create houses and buildings

Added building generation that plans windows, entrances and roofs using real parts.
Adjusted free-form generation to better preserve grey and dark colours.
Refined some part shapes and their orientation in exported building files.

2026.08.30

Faster processing and better connections for larger creations

Sped up conversion to parts and assembly-order checks for larger creations.
Improved connections in hollow structures to reduce fragmentation.
Adjusted cleanup to remove tiny isolated pieces that cannot connect to the main structure.

2026.08.27

V7.0.1

Stronger connections in hollow creations

Thickened the sides of hollow structures to reduce fragmentation in larger creations with detailed colour patterns.
Reworked internal connections while preserving the outer shape and surface colours.

2026.08.20

Updated 3D shape generation

Updated the generation foundation for turning text and photos into 3D shapes.
Fixed repeated retries that could prevent a failed generation from finishing.

2026.07.22

Support only where it is needed

Removed automatic lifting of the whole creation and large bases added solely to connect parts.
Reconnected side-touching sections within the shape, adding short supports only beneath genuinely floating sections.
Cleaned up tiny generation artifacts while preserving openings such as arches and reducing visible supports.

2026.07.22

Hollow interiors with fewer parts

Removed deep, invisible interior material while retaining the outer shell and necessary reinforcement.
Combined stacks of thin plates into standard bricks where shape and colour could be preserved.
Limited connecting bases to necessary paths. A fixed comparison shape used about 34% fewer parts than V4.

2026.07.22

Generate 3D shapes directly from text

Removed the intermediate concept-image step and switched to generating a 3D shape directly from the prompt.
Simplified the process to reduce image-generation waits and inconsistencies between different views.
Retained size normalisation, conversion to real parts and export of building files.

2026.07.22

V3.0.1

Correct part orientation and placement in exports

Aligned rectangular parts with the coordinate conventions of the building-file format.
Fixed cases where exported parts were rotated by 90 degrees or shifted by half a stud despite appearing valid in internal checks.
Affected saved creations also received orientation corrections during this update.

2026.07.22

Introduced generation guided by four views

Introduced a process that created four views of the same subject and used them to build a 3D shape.
The intermediate step aimed to communicate depth and a brick-built appearance more clearly.
Retained V2.1’s connected part conversion. V4 later replaced this image-based process.

2026.07.22

V2.1

Connect separated sections instead of discarding the result

Expanded the search for connecting placements to reduce rejected creations caused by disconnected parts.
When normal placement left separate sections, bases and supports connected them into one building file.
This could add substantial structure and parts; V5 and V6 later reduced these additions.

2026.07.22

Rebuilt conversion around shape and surface colour

Rebuilt conversion to parts, prioritising openings, outlines and surface colours.
Moved from removing pieces or adding bridges after generation to arranging shape and seams during placement.
Revised quality baselines using fixed shapes to check missing, extra and overlapping parts.

2026.07.21

V1.5.3

Reinforced side-touching shapes such as branches

Added small connecting plates to bridge sections that only touched sideways.
Limited removal of detached fragments to cases that could be safely cleaned up.
Verified generation, saving and reloading with fixed plant, animal and food-stall examples.

2026.07.21

V1.5.2

Select parts supported by the full inspection process

Restricted automatic placement to catalogued parts supported by shape, connection, support, stability and assembly-order checks.
Prevented parts that could be placed but could not be fully inspected from entering generated creations.

2026.07.21

V1.5.1

Prevent unregistered parts from entering creations

Limited automatic selection to parts with registered shape and connection definitions.
Fixed inspection and connection failures caused by unregistered parts.

2026.07.21

V1.5

Clarified the roles of generation, editing and review

Reorganised conversational editing, visual review, repair and building generation.
Changed part selection to consistent rules over a defined candidate list, reducing variation and out-of-list choices.
Fixed false rejections and missed refunds found during staged checks before promoting the release, protecting against charges without a usable result.

2026.07.21

V1.6

Rejected experiment

Tested and rejected separate shape and colour generation

Tested generating a shape separately from colouring it using multiple views.
Outline changes, missing surfaces and broken connections remained, and some previously successful results regressed.
The proposal did not meet the acceptance criteria and was never released as a production version. Development continued from V1.5 to V2.

2026.07.20

V1.4

Richer surfaces with slopes, curves and windows

Added finishing that recognises exposed surfaces and chooses subject-appropriate slopes, curves and window parts.
Improved the basic-brick-heavy appearance and included uneven surfaces in the finishing process.

2026.07.18

V1.3

Better handling of large and hanging structures

Recognised support provided by connected bricks instead of rejecting every section without a support directly below it.
Preserved generated positions to prevent repairs from dropping parts and distorting the shape.
Allowed more inspection time for larger creations.

2026.07.18

V1.2

Safer recovery and credit returns after failed generation

Improved safe cleanup of small disconnected fragments and passed complete information into repairs.
Strengthened protection against processing the same generation more than once.
Revised credit returns to prevent costs remaining after an unsuccessful creation.

2026.07.18

V1.1

Fixed conversion boundaries, orientation and internal connections

Corrected how shape boundaries and part orientation were handled during grid conversion.
Allowed connections across hidden internal colour boundaries while preserving visible colours, reducing holes and fragmentation.
Improved cases where visually valid creations were incorrectly classified as floating.

2026.07.18

Introduced formal versioning for the creation system

Began managing shape generation, grid conversion, part selection and assembly inspection as one creation system.
Fixed release identifiers and evaluation baselines so creation history could identify the system used.
Established the first reference release for comparing changes to the earlier development work.

2026.07.17

V0.11

Before versioning

Built a foundation for collision, connection and assembly checks

Defined real-part shapes and connections, adding checks for overlaps, disconnected sections, floating parts and support.
Connected visible inspection results to generated proposals, assembly sequencing and exports.
V1 later brought this inspection and conversion foundation under formal versioning.

2026.07.16

V0.10

Before versioning

Choose colours and continue generation in the background

Added colour selection before generation and improved part selection and follow-up edits.
Unified progress reporting and moved long-running generation beyond the lifetime of the screen.

2026.07.13

V0.9

Before versioning

Finish generated shapes with real parts

Added catalog searches to select real parts suited to a generated shape.
Moved beyond simple brick placement toward parts chosen for their shape and purpose.

2026.07.12

V0.8

Before versioning

Review changes before applying them

Added a flow for reviewing AI changes before applying them to a creation.
Connected assembly instructions, parts-list exports and publishing to support the path from creation to sharing.

2026.07.08

V0.7

Before versioning

Review creations with AI and act on suggestions

Added AI visual reviews covering strengths and possible improvements.
Connected review suggestions to conversational partial edits.

2026.07.07

V0.6

Before versioning

Edit part of a creation through conversation

Added conversational requests to add, remove and change parts in an existing creation.
Introduced a way to refine an existing result instead of starting over each time.

2026.07.03

V0.5

Before versioning

Turn text and photos into 3D shapes, then into bricks

Switched to creating a 3D shape first, then converting it into parts.
Revised shape sampling, including interiors, to reduce holes and missing sections.
Corrected part orientation and building-file exports for compatibility with external building software.

2026.07.02

V0.4

Before versioning

Connected photo input and layer-based generation

Connected photo-based creation to real generation.
Introduced a process that took layer-by-layer shapes and converted them into bricks using fixed rules instead of asking AI to place every part.

2026.06.23

V0.3

Before versioning

Explored creating spaces with multiple buildings

Developed a mode for generating and arranging buildings in one space, with saving, resuming and walkthroughs.
This explored combining buildings beyond a single creation. The mode from this period is no longer offered.

2026.06.22

V0.2

Before versioning

Plan size and shape before placing parts

Improved generation by planning from the prompt first, then checking grounding, symmetry and overlaps.
Added size confirmation in conversation and brought creation chat and its history together.

2026.06.12

V0.1

Before versioning

Integrated the early editor and its generation methods

When the existing editor was integrated, AI proposed brick positions, dimensions and colours directly.
A separate building method constructed shapes from conditions such as width, floor count and windows.
Formal model versions had not yet been introduced; later work separated generation from conversion and inspection.

2026.05.03

Before versioning

Early assistance with concepts and building ideas

Added creation assistance that returned a concept image, part hints, design notes and suggested building techniques.
This helped explore building ideas and was different from today’s generation of 3D creations with real parts.

Listed newest first. Entries describe changes at the time and may differ from features available today. V3.0.1 corrected orientations in saved creations. Current updates do not automatically regenerate earlier creations. Building shapes and interiors have supported limits; physical assembly and structural strength are not guaranteed.

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