June 2026 update

In June our first pilot studios converted into paying B2B accounts. We’ve had individual subscribers since January, but studios paying as a team is new, and it set the month’s priorities. Most of the work went into the billing a studio needs. Alongside that, we brought regional editing back at full resolution, rewrote how groups behave, gave every image layer proper color adjustments, and built an asset library for keeping and reusing your own references.

June in numbers

• Our first paying studios. Pilot studios converted to paid B2B accounts, and more firms started pilots.
• 11 new test suites for billing. Invoicing, seats, and the shared balance.
• 9 element types, one set of group rules. Every kind of element now behaves the same inside a group.

Shipped

Self-serve studio billing. A studio can now subscribe on its own, with no pilot and no sales call. From settings it can add and remove seats as the team changes, cancel, and come back later. Each member gets their own monthly credits, and the whole studio shares one balance on top for whoever needs it. Payment is by card, SEPA direct debit, or bank transfer. With real studio money involved, we made the billing careful and predictable. Nothing runs without being paid for, and a studio can cap how much each member spends.

Regional editing, rebuilt. We said in May this was coming back. Rather than patch the old version, we rebuilt it. You mask the part of an image you want to change, and it now works on the full-size image, up to 4K, so the edit is sharp and lands exactly where you masked it. A live outline shows the region you’re about to change. You can guide the edit with reference images and generate in batches. Layer masks were part of the same rebuild. A single mask now holds both hard and soft edges, you can copy and paste masks between layers, and you can pan the canvas while you work.

Groups, rewritten. Groups already existed, but they behaved differently for every kind of element, and testing with users made that plain. We rewrote them against a single set of rules. Images, drawings, notes, text, cutouts, and every kind of widget now group, move, copy, and delete the same way, nested up to five levels deep. A group can carry a color and be hidden or locked. Drag a loose element onto one and it joins. Delete a group and its contents go with it. Empty a group and it dissolves on its own.

Per-layer color. Every image layer can now carry Curves, Levels, and a stack of Photoshop-style adjustments, and they update live as you drag. Adjustments survive a reload, and when you generate, the AI works from the color-adjusted image you see, not the original.

Generation. Nano Banana Pro and Nano Banana 2 can now pull in real references from Google while they work. It’s off by default, and adds a small extra cost when you switch it on. Nano Banana 2 also gained a thinking level for harder prompts. We fixed two problems with 4K renders: they could be slow, and they could come out at a lower resolution than you asked for.

Workspaces. Every project tab is now just a canvas you drop layers onto. The old fixed “scene image” is gone. Uploads and CAD or Revit extractions all arrive as ordinary layers, and an extraction lets you choose which workspace it lands in.

Asset library. A shared library for your images and PDFs, personal and studio-wide. Save into it from the canvas, your clipboard, or straight from Are.na. Organize with nested folders, tags, ratings, and notes. Filter by color, aspect ratio, or type, search it, and drag anything back onto the canvas. A studio can publish references to a shared library with per-member permissions, so a firm keeps one set of references everyone works from. Save the same image twice and we keep only one copy, so duplicates cost nothing.

On the road

Auer Weber. We ran a workshop at the firm, and the most useful part was them showing us how they use Interstitial on their own projects. We were surprised by how many different uses they had found for it.

Tongji University, Shanghai. Architecture students in TUM’s Digital Futures Workshop at Tongji are designing and rendering with Interstitial. It’s our first classroom outside Europe, and it’s still running.

KIT and TUM. We presented to the architecture master’s students at KIT, and our teaching at TUM continues.

Learned

Studios raise the stakes on billing. We’ve charged individuals since January, but a studio is a different kind of customer: bigger invoices, several seats, a signed contract behind them. That gives billing far more surface to get right, and at this scale a billing error would cost a firm real money and trust. It cannot happen, so most of June’s billing work went into making sure it never does.

Some things are worth rebuilding, not patching. The fast way to bring regional editing back was to patch the old pipeline and keep its wrong-resolution masks and smeared edges. Rebuilding took longer, and it is the only reason the feature is worth using.

Next

• Plugins. Rhino, Archicad, and SketchUp, plus a large update to the Revit plugin, so models come straight from CAD into Interstitial.
• New models. The latest image, video, and segmentation models, added as they land.
• Sharing. Read, collaborate, or copy access, shared by a link, outside the firm or inside your own studio.
• Hardening. Bug fixes and performance work across the board.

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Interstitial is an AI-driven architectural visualization platform built in Munich. We send build updates monthly. Contact