01
Local by default
Your words should live on your machine unless you decide otherwise.
How Mumble does it
Audio is transcribed on your Mac with Whisper, and every conversation is a folder of plain files in ~/Mumble.
About tiny space
Small tools for big thinking.
tiny space makes AI-native tools that keep people in charge. They run on your own machine, work with the AI you already use, and always show their working.
Why we exist
The best thinking still happens out loud: in a call with a customer, at a whiteboard with a colleague, or talking to yourself on a Sunday night. And most of it evaporates. Notes flatten it into text. Recordings bury it. AI tools summarise it somewhere far away and hand back something you can’t check.
We think AI should be a partner in that room, not a scribe outside it. It should do the part it’s good at, turning messy language into structure, and leave the part that’s yours alone: the judgement, the taste, the decision.
AI should be a partner in the room, not a scribe outside it.
How we build
Six principles.
AI-native doesn’t mean AI everywhere. It means building around what AI does well and what people do well, and never blurring the two.
02
Private is always an option
You can always use it without anything leaving your device, even if you get less.
How Mumble does it
Transcription-only mode sends nothing anywhere. The Private plan, coming soon, runs the models on your computer too.
03
Bring your own intelligence
Use the AI you already trust. We never hold your key.
How Mumble does it
Mumble works through your own Claude Code or Codex account, on the plan you already have. It never asks for or stores an API key.
04
Show the receipt
AI output you can’t check isn’t help, it’s homework.
How Mumble does it
Every box and arrow links to the sentence and timestamp behind it. Anything the AI adds on its own is marked as a suggestion.
05
The person has the last word
AI proposes; people decide. Your edits are never overwritten.
How Mumble does it
Drag, rename or delete anything, during or after the call. Your edits always win over later AI updates.
06
Make things together
People think out loud; the AI keeps up, so nobody has to be the scribe.
How Mumble does it
Mumble draws while the room talks, so everyone stays in the conversation and nobody stops to take notes.
What we’ve made
Mumble
Speak it into shape.
A Mac app that turns a live conversation into a diagram, with every box linked to the words behind it.
Join the waitlistWho we are
An independent product lab. Mumble is our first product.