AI is powerful.
Chat is the
bottleneck.

Select anything on your screen and have AI explain, rewrite or translate it right there, without leaving the app or re-explaining the context.

Private beta · invite only

1 month free at launch for the waitlist

Your invite + rare updates. Unsubscribe anytime. Privacy

Everything below happens here
act on any selectionuse your own reusable actionscombine selected context

One translucent screen you call up from wherever you are, and everything below runs inside it.

The interface

Select anything on your screen and have AI explain, rewrite or translate it right there, without leaving the app or re-explaining the context.

One press: the overlay opens over your apps

Circle the first thing you want to use

Circle a second one: both land in the command

Say what to do with them

Enter runs it: the answer appears in the bar

⌘S keeps the command for next time

Take the answer out as a card on the glass

Summon

One command on the mouse, from whatever app you are in.

See through

Your screen stays visible underneath. You never lose your place.

Act directly

Point at what is on screen instead of describing it in words.

Everything below happens here
act on any selectionuse your own reusable actionscombine selected context

One translucent screen you call up from wherever you are, and everything below runs inside it.

How it works

Pick up a card you kept earlier

It opens into your note

Select a sentence

Choose an action: Explain

The answer lands in place, whole

Pick a follow-up

The change lands, highlighted

1
Select

Pick up what you set aside, wherever you work.

2
Choose an action

Explain, Summarize, Rewrite, Ask, or one of your own.

3
Keep working

The answer lands in place. No tab switch, no re-explaining.

Shape it by hand

Edit the answer the way you would edit a drawing.

Once a card is open, its text is yours to shape: pull a sentence longer, turn its words around, drag a passage out and back, brush a tone on, merge two passages, and keep every pass in a layer you can hide. No prompt in between.

An open card: its text is yours to shape

Pull the edge: the sentence grows

Turn the handle: the words reorder

Drag a sentence off the page

Right-click: split the sentence in two

Drop it back where you want: it blends in

Pick a tool: Smudge

Brush a word: it is rephrased

Erase a word: the sentence heals itself

Number: singular to plural, the rest agrees

Tense: present to future, the rest agrees

Type a rough note in the margin

Repair fixes the grammar

Or just ask: an example is added

Pick the eyedropper

Copy the tone of your own writing

Brush it onto the answer

Turn the wheel: another tone

One slider: a touch more positive

Edit a pole: Playful

Drag a passage over, Subtract: no repeats

Drag another over, Unite: one sentence

Hide the edits layer: your original is back

Show it again

Reorder the layers: the original on top

1
Manipulate

Pull a sentence longer by its edge, turn its words around by a handle, drag a passage off the page and back in, split a sentence in two.

2
Tools

Smudge to rephrase, erase a word and the sentence heals, change number or tense and the rest agrees, repair what you typed fast, or just ask.

3
Tone, merge, layers

Copy the tone of your own writing and brush it on. Explore tones on a wheel. Merge two passages. Every pass sits in a layer you can hide or reorder.

Research you can trace

Every line of the answer shows where it comes from.

Circle a claim, keep the study you trust, and check what GalaxyBrain understood before it writes. Each line of the answer stays linked to its passage, and the links follow when you reshape the result.

Circle the claim you want checked

Research finds the studies behind it

Keep the most cited one

Compare the claim with the study

It shows what it understood. Drop a question

The answer arrives whole, each line linked to a source

Hover a mark: the passage lights up

Reuse the answer: rewrite it as a plan

Pull the edge to shorten. Undo if you want

Pick a tone

Drop it with a small overlap: the texts join

Drop it right on the plan: one text instead of two

Keep the whole chain as one action

1
Point at it

Circle the claim. Research brings the studies behind it, sorted by how often they are cited.

2
Check what it understood

Before a word is written, you see the sources and questions it will use. Drop what you don’t want.

3
Trace every claim

Each line carries a source mark. Hover it and the passage lights up where it came from.

4
Shape the result

Rewrite it as a plan, pull its edge to shorten it, set the tone, merge two cards, undo. The marks stay. Keep the whole chain as an action.

Check before it writes

Fix what it understood before a word is written.

GalaxyBrain shows the steps it will take as a graph you can edit: fold, delete, rename, add a step, or just say it. Confirm, and it writes from the graph you checked. Fix a step after, and it writes again.

Open what it understood: the steps, as a graph

It arrives folded. Open the steps you want to check

Hover a step: its words light up in the request

Delete a step: the request follows

Rename a step. No prompt needed

Add a step yourself. No prompt needed

Or say it: two steps are added, in green

Confirm: it writes from the graph you checked

A fix after: edit the step, it writes again

1
Open the graph

The card you checked opens into the steps GalaxyBrain will take, folded to what matters.

2
Edit it by hand, or say it

Delete a step, rename one, add one where you want it, or type what to change. The request follows.

3
Confirm, then fix after

It writes from the graph you confirmed. A small fix later: edit the step, and it writes again.

Today vs GalaxyBrain

Your thinking isn't linear. Why should your AI workflow be?

Today
Select→Copy→Chat→Paste→Prompt→Answer→Copy→Return
With GalaxyBrain
Select→Act
If you've caught yourself thinking any of these, you're who we're building for.
Why am I the one carrying context between my tools?
Why is my work cut up along app borders instead of along how I think?
I already worked out how I want this done. Why do I have to explain it again?
Private beta · invite only

Get your invite to the private beta.

1 month free at launch for the waitlist

Your invite + rare updates. Unsubscribe anytime. Privacy

What happens next
  1. 1
    You're on the list

    One email, nothing else to fill in.

  2. 2
    A few optional questions

    About how you use AI today. They shape the beta.

  3. 3
    Your invite, by email

    When the beta opens to you, with 1 month free at launch.

Your actions, reusablein the overlay

Write the prompt once. Keep it as a command.

Your best prompts live in a note you copy-paste from. Here you never save one: the moment a prompt runs, it becomes a command: the same instruction, with an empty slot where the thing you pointed at used to be.

Click a saved command: it stays armed

Circle a paragraph: it runs on it

Circle another: no retyping

Esc when you are done

Click compare: two empty slots

Circle the first thing: slot A fills

Circle the second: slot B fills, it runs

The answer lands in the bar

Take it out as a card on the glass

Circle first, then click the command

It runs once and does not stay armed

Take the answer out as a card

One slot
It stays armed

Tap the command, then keep tapping things down the page. Each one gets it. Esc when you are done.

Two slots
They fill in order
rewrite ? in the voice of ?rewrite this intro in the voice of ?

The command shows what you have filled so far. The last tap runs it. You never press send.

Already selected
Then just tap it

Point first, tap the command second. It runs once and does not stay armed, so there's no mode to escape from.

You already worked out how you want AI to do this. The point is not to make you explain it again.

Questions

Before you join.

What is GalaxyBrain, and where does it run?

A desktop app you run on your computer, next to the apps you already use. It's in private beta, and invites go out by email.

What does it read, and what leaves my computer?

Your screen is read locally, on your computer. Only what you select is sent to the AI, and only when you run an action on it.

Do I need an API key or my own AI model?

No. The AI model is provided by GalaxyBrain, so there's nothing to set up.

What happens after I sign up?

You're on the list. A few optional questions follow, about how you use AI today. When the beta opens to you, your invite arrives by email.

Early access

Help shape GalaxyBrain.

We're looking for the first people who feel this problem every day.

1 month free at launch for the waitlist

Your invite + rare updates. Unsubscribe anytime. Privacy

You're on the list