Sergio Mattei, who works on the Codex app at OpenAI, on the details of Space, a thread of nine posts filed here as one in its own order; Tibo pointed readers to it as the one thing to read about Space. The film is the thread's fifth post, visualizations embedded in a page.

Sergio Mattei 30 Sep 2026

We can finally show what we've been cooking. 🧑‍🍳

Here's some details about it that I really like:

First, the home view is really beautiful--the team cooked with the design. Rich previews the documents you've been working on:

Ask complex questions and generate text inline without breaking flow.

A photo printer generates images for you. Add creative artwork to your Pages.

Turn images and tables into beautiful, widescreen displays.

Embed rich, multiplayer visualizations and apps within your pages.

This one's mind blowing btw--

Prompt blocks. Embed one-click chat prompts for readers.

And to celebrate the launch of Space, we're dropping one more icon choice for your Dock.

Introducing the Spaceblossom.

Appearing shortly in a Settings section near you.

Now, of course, there's so many more amazing things that I haven't mentioned:

⋅Collaborative editing
⋅Bring in your dots to keep pages up to date!
⋅@ChatGPT in the comments
...and much much more

we hope you like it!
https://x.com/ajambrosino/status/2104991411930357862

Sergio Mattei's post on X, curated on eChai