Creating a General model now offers Concept first: describe the thing, or upload a photo or a hand sketch, and get a concept image before anything is built. Ask for changes until it looks right, then take it with you into the build.

In a conversation, ask to see a sketch first and the assistant draws one instead of building straight away. Say what to change, or press “Build from this concept”.

For shapes that have no real dimensions — figurines, animals, plush toys — the assistant can now try generating the form instead of piling up boxes and cylinders. A generated shape exports as STL only — not STEP.

New conversations now guide you through changing the model.

A new model with nothing built yet no longer shows a blank thumbnail in your model list.

Email sign-in sends a 6-digit code instead of a link. You type the code in the browser you are already using, so the link can no longer open somewhere else and leave you signed out after you clicked it.

When a model fails to build, the message now tells you what to write instead. We grouped nine weeks of build errors and rewrote the ones people hit most.

Parts that sit flat and hold against each other are no longer reported as a gap.

Export and download moved somewhere you can find without hunting for it.

The model tree splits parameters from parts. A row of parts made by a loop collapses into one “×8” line, and deleting that line removes the whole row at once instead of one at a time.

A part that cannot be removed directly now offers a “hand it to the assistant” button, so getting stuck is no longer a dead end.

If a conversation is cut off mid-answer, that answer is no longer lost — it is saved as it is written.

Building runs on gpt-6-astra by default now. It is a different generation, and on the same part it makes different calls — you may notice it going at things another way.

Whichever model starts a run finishes it — nothing swaps it out halfway through, so one part is not built by two different heads.

When the assistant stalls, it retries on its own — but idle time now has a ceiling, so a stuck run cannot quietly burn your credits.

You can dimension a sketch directly. Pick two things, the measurement lands on the drawing, and editing that number changes the model.

Drawing snaps to a grid, and the grid changes density to match how big the part is.

Shaped slots are a first-class feature now — go back and edit one instead of redrawing it.

Features and sketches are editable from a shared link too, not just in your own workspace.

You can interrupt with a note while the assistant is still building. It picks the note up as soon as the current step finishes, instead of making you wait out the whole run.

Where your description leaves a fork, the assistant puts the options on the table before it starts, instead of guessing and building half a part the wrong way.

A conversation no longer turns itself over because you left it sitting. Starting a fresh one is a button you press.

A share link shows everyone the same thing: the full editor, where anyone can orbit, measure and read the parameters — and nobody can write back to your original.

Moving parts can be played right in the page, so you can watch whether a hinge or a slider clears everything on the way round.

Export happens in the browser now instead of waiting on the server.

The waiting screen was rebuilt to show tips worth reading while it works, and the phone layout got cleaned up along with it.

Extrude takes a draft angle, so a wall can lean the way a molded part needs it to.

The home page opens without an account. Describe the part you want first; sign in when you want to keep it.

House exteriors can take a finish — lap siding or brick courses.

The browser tab shows the model's name, so a wall of open tabs is still navigable.

You pick a track when you start. Mechanical parts and houses follow different methods and different checks, and the assistant works differently once you have chosen.

The house track comes with its own building blocks — walls, door and window openings, roofs — so you are not stacking boxes by hand.

How hard the assistant thinks now comes with the track instead of being a dial you have to set.

When two parts pass through each other, you hear about it right there — not after someone tries to assemble the thing.

Changing one dimension no longer recomputes the whole model, so the wait got noticeably shorter.

The page shows what a conversation is costing you in credits, while it is happening.

Even when a build fails you can still measure and inspect what is there, instead of staring at an empty canvas.

The model tree arrives: for the first time you can see which parts a model is made of, and remove one from there.

The outline is retired the same day. The model tree takes over its slot in the toolbar: a list you can point at and delete from, rather than one you only read.

Sketches got fills and display styles, and shapes like slots can be drawn directly.

The assistant's replies no longer leak the internal chatter that was never meant for you; what is left is the part you can act on.

forgent3d skills went live: install it in a local agent like Claude Code and it builds the model, checks its own work, and hands you a 3D link.

The adjustable list shows real constants only — it is no longer padded with expressions nobody can read.

Assembly actions moved into the toolbar instead of being scattered across the screen.

The outline arrives: how the model was built, step by step, in plain words. Click a line and the matching geometry lights up on the canvas.

Revolve joins the feature set, and extrude works out on its own whether it is adding material or cutting it away.

A light theme, and a grid on the canvas so you can tell how big things are.

A shell that fails says so, instead of quietly doing nothing.

Change a dimension in the parameter panel and the whole model rebuilds around it — you are moving a real parameter, not stretching a picture.

Adjustable parameters are recognized on their own; you do not have to mark them up first.

An interrupted step no longer sits there saying “running” forever.

Holes, shells, fillets, chamfers and patterns can be dragged out on the canvas instead of being described in words every time.

A ghost preview follows the drag, so you see the result before you commit to it.

Undo and redo.

You can import STEP, BREP and STL — bring in a part you already have and design the new one to fit it.

You can scribble straight on the canvas to show the assistant which spot you mean.

A selected part can be added to the conversation, so the assistant knows what you are pointing at.

Assembly arrives: pick two faces or two edges to mate parts, then drag to see how the joint actually moves.

An exploded view takes an assembly apart so you can see what is inside.

Parts take their own color and material, and the choice sticks.

Credit top-ups went live, and the page shows what you have spent and what is left.

The model's source can be downloaded as a zip.

This platform split off from the open-source Forgent3D and went its own way. Everything below is what changed after the split — by then it could already take a part you described in words, show it in the browser, and export it as a file.