Ask all day.
No limit, no “come back later”Your personal AI assistant. It runs on your PC, works fully offline, is 100% private and has no usage limits.
What do you want to make?
Example answers to give you a feel; nothing here runs AI. In the app, Cube 2B writes its own on your PC, offline.
It runs on your PC, so use it as much as you want.
Ask all day.
No limit, no “come back later”Describe an app. It builds it.
Code for hours, nothing runs outAs many pictures as you want.
No daily countWeb pages to open and share.
For a club, a project, a DiscordReal PowerPoint files.
6 colour themes to pick fromGraphs, flowcharts, circuits and cells.
Drawn neatly, ready for your notesFlashcards and quizzes from your notes.
Also tables, checklists and timelinesReal Word documents.
Essays and notes, saved as .docxDrop in PDFs and photos.
As many as you likeJobs that run on their own.
Like sorting your inbox each morningSlide to see what an AI subscription costs you.
Most paid AI plans cost about $20 a month, and even paid plans have usage limits.
Same question, no internet. Only one of them answers.
Quiz me on the French Revolution.
Can’t connect. Check your internet and try again.
Quiz me on the French Revolution.
Sure! Question 1: in what year did it start?
Chats, files and images are made and kept on your machine. Nobody reads them, trains on them or sells them. Only web searches go out, and only if you turn Online on.
Cloud AI runs your question past a company’s content policy. GreenCube adds no filter of its own over the answers.
Its models are told to answer candidly. Swearing, dark fiction, blunt opinions, hard history and security research are all fair game.
It won’t help anyone hurt people, exploit children, steal, or break into accounts. Everything else, you can ask.
How: GreenCube gives its models standing instructions to answer candidly. It steers them rather than retraining them, so now and then one can still say no. You can turn this off in Settings.
Two things decide it: how much RAM, and whether you have a graphics card. Same app, same price either way.
RAM, not storage. Not the hard drive or SSD space.
Most laptops have no separate card, and that is completely fine.
| What it does | Seed8 GB RAM, no graphics card | Sprout16 GB RAM, or 8 GB with a 4 GB card | BloomAn 8 GB card, or a 4 GB card with 16 GB RAM | ThriveAn 8 GB card with 24 GB RAM |
|---|---|---|---|---|
| Speed | Slow, but it works | Steady | Fast | The fastest |
| AI model | Cube 2B | Cube 4B | Cube 4B | The biggest your card can hold |
| Chat, PDFs and photos | ||||
| Flashcards, quizzes and tables | ||||
| PowerPoint and Word files | ||||
| Slide decks the AI writes | Made from a document | |||
| Web pages | Off at first, you can turn them on | Yes, after telling you the wait | ||
| Images | Needs 12 GB RAM | Yes*, about 2 minutes each | Yes* | |
| Apps it codes | Up to 8 files | Up to 12 files | Up to 24 files | Up to 48 files |
Cube engines are built on Google’s Gemma.
* Images need 12 GB of RAM or more. Picture time measured on a 16 GB laptop with Intel graphics. How much it can read at once (a chat plus your files) grows with free memory. Each tier is a starting point, not a lock: Settings → What your computer can do switches each part on or off.
One installer, like a game.
The first time, it downloads the AI to your PC. A few GB, once.
Chat, code, make images. Online or offline, as much as you want.
If it has Windows 10 or 11 and 8 GB of RAM, yes. A graphics card makes it fast. Check your PC in two questions.
Once, to sign in and download the AI. After that it works with no internet. It only goes online for updates, or if you switch Online on.
No. The biggest cloud AIs are smarter. GreenCube runs on your PC, works offline and is yours. That’s the trade.
Only to check that you paid. It never sees your chats, files or images.