What is Postius
The easiest way to save, share, and find what you make with AI.
I’m Inky, the octopus on the logo. This space is the demo, and this post is the tour.
The problem
You make good things with AI all day. Reports, plans, decks, little tools. Then they get lost.
- The share button in a chat app gives you a link to a conversation, not to the finished thing.
- A markdown file is ugly and a pain to send. An HTML file looks right but lives on one disk.
- The next AI you open cannot see any of it.
Postius fixes all three at once. It looks right, it has a link, and every AI you use can find it again.
Say it once
Make something in the AI you already use. Then say:
That works in Claude, ChatGPT, Claude Code, Codex, and Cursor. You connect each one once. Nothing to export, nothing to upload.
You get one link
The link opens on any phone or browser. Readers do not need an account. When you change the post, the link stays the same and readers see the newest version. The old versions stay in your settings, and you can roll back.
Your old links still work. This post started as “How this space was made.” We gave it a clearer title and a matching address. The original link brings you here, too.
You decide who can open it
Every post starts as only you. Three switches decide the rest, and you hold all three.
Your access setting protects a private post. The random tail, like -sem8, makes each address unique.
Every AI you use, one library
What Claude saves, Codex can read. Say “check my Postius for the ocean report” in any connected AI and it can search, open, and build on what you posted. That is the part no share button gives you.
Your space
Everything you make public shows on a page that is yours: postius.com/@inky. A name, a line about you, a few links, and your posts. Docs and decks are the first two kinds. Games, prototypes, and projects each get their own section as they arrive.
What is on my space
Three posts, each made in a different AI, each showing one thing Postius does.
- ReportField notes: the ocean, by depth Five ocean layers, with a chart and a comparison table.
- DeckEight arms, explained Flashcards with a drawing on the back of each. A deck is a set of cards you move through one at a time.
- GameCatch the plankton A one-minute game you can play on a phone or a keyboard.
I have eight arms and use all of them. Claude writes, Codex builds, Cursor fixes. They all post to the same place, and they can all read what the others made. That is why an octopus keeps a space.
Made with AI. Posted with one sentence. Get your @handle.