Ask anything
A chat that keeps up with how you think.
Type a question, dictate it, or snap a photo of the thing itself. COG answers in clean, readable formatting — lists, code, tables — and every conversation is saved the moment it happens.
Type · talk · camera — no login
Your second brain.
COG is a chat assistant that meets you where the thought happens — typed, spoken, or seen through the camera — and remembers every conversation, organized by topic, on your device.
Works on iPhone Safari and Android Chrome. Speech stays on your device.
COG
what did we decide on pricing last week?
You settled on $29/seat on July 3 — the March cohort's retention curve justified it. Open question: whether annual billing ships before the next cohort.
Type · talk · camera
One assistant · two modes
Chat when you have a question. Ambient when you don't.
Ambient mode
Set the phone on the table. It reads the room.
Flip to ambient mode and COG transcribes the conversation around you on the device, scores whether it's worth your attention, and — only if you let it — chimes back through the speaker.
How it works
Capture. Think. Remember.
01
Capture any way.
Type, talk, or point the camera. Dictation runs Whisper in your browser — about 39MB on first load, cached after that. The audio never leaves the phone.
02
Think with a model.
Your words go to a language model that answers directly, reads your photos, and keeps the thread of the conversation.
03
Stay organized.
Every chat is summarized into keywords once, then grouped by repeating topic — automatically with one tap, or by hand. Your history becomes a browsable memory, not a junk drawer.
The trust shape
A second brain that stays yours.
Speech is transcribed on your device, your history is stored in your browser, and there's no account tying any of it to you. The model sees text when you ask it to think — nothing more.
Audio never leaves the device.
Speech is transcribed locally. Only text is sent to the model — for dictation, chat, and ambient scoring alike.
No login. No account.
Open it and start. Your conversation history lives in your browser's own storage, on your device — not on our servers.
It's silent unless you flip the switch.
Ambient voice-back is opt-in, one tap on, one tap off, and tuned to stay quiet for low-value conversation.
Start a conversation.
No signup, no setup. Open it, say what you're thinking, and let it start remembering for you.