404canvas
404canvas
Project 01 / 03Browser extensionv1.1 · 2026Available to members
New · PolyMind v1.1 · 15 models via OpenRouter

Every model.
Every page.

A floating AI overlay for Chrome, Edge, and Brave. Press Alt+QQ on any page to ask Gemini, Claude, GPT, Llama, and more — all from one keyboard shortcut.

example.com/article
Gemini 2.5 Pro
Ask AI...
AltOption+Qto toggle anywhere

Features

Six things it does better.

A keyboard-driven assistant that follows you across the web. Designed for power users — fast, contextual, private.

Works on any page

Press Alt+QQ anywhere — articles, dashboards, docs, your inbox. The overlay drops in, you ask, it answers.

15 models via OpenRouter

Gemini, Claude Sonnet 4.5, GPT-4.1, Llama 4, DeepSeek V3 — switch on the fly from a single dropdown.

Screenshot & vision

One click captures the current tab and sends it to the model. Ask about charts, diagrams, code on screen.

Answer styles

Choose how the AI responds: conversational, direct with reasoning, or solution-only. Switch per-question from settings.

Conversation history

Your last 50 prompts and responses are kept locally and expandable per entry. No server, no cloud.

Local & private

Settings and history live in browser extension storage. Your prompts only leave your browser when you submit.

How it works

Three steps to AI everywhere.

polymind-v1.1.zip
01

Install

Download the extension and load it via your browser's extensions page (Developer Mode). Works in Chrome, Edge, and Brave.

OpenRouter API key
sk-or-v1-••••••••
Stored locally only
02

Add your API key

Open the extension settings and paste an OpenRouter key. It stays on your device — we never see it.

AltOption+Q
03

Press Alt+Q⌥Q

On any page, summon the overlay. Type a question, pick a model, get an answer. Done.

Models

One overlay. Every major model.

Powered by OpenRouter. Bring your own key. 15 models across 5 providers — switch with a single click, no separate tabs or apps.

O
OpenAI
GPT-4.1 · GPT-4.1 Mini · GPT-4o · o4 Mini
A
Anthropic
Sonnet 4.5 · Haiku 4.5 · Opus 4.5
G
Google
Gemini 3.1 Pro · 3 Flash · 2.5 Pro · 2.5 Flash
M
Meta
Llama 4 Maverick · Llama 4 Scout
D
DeepSeek
DeepSeek V3 · DeepSeek R1
O
OpenAI
GPT-4.1 · GPT-4.1 Mini · GPT-4o · o4 Mini
A
Anthropic
Sonnet 4.5 · Haiku 4.5 · Opus 4.5
G
Google
Gemini 3.1 Pro · 3 Flash · 2.5 Pro · 2.5 Flash
M
Meta
Llama 4 Maverick · Llama 4 Scout
D
DeepSeek
DeepSeek V3 · DeepSeek R1
O
OpenAI
GPT-4.1 · GPT-4.1 Mini · GPT-4o · o4 Mini
A
Anthropic
Sonnet 4.5 · Haiku 4.5 · Opus 4.5
G
Google
Gemini 3.1 Pro · 3 Flash · 2.5 Pro · 2.5 Flash
M
Meta
Llama 4 Maverick · Llama 4 Scout
D
DeepSeek
DeepSeek V3 · DeepSeek R1
O
OpenAI
GPT-4.1 · GPT-4.1 Mini · GPT-4o · o4 Mini
A
Anthropic
Sonnet 4.5 · Haiku 4.5 · Opus 4.5
G
Google
Gemini 3.1 Pro · 3 Flash · 2.5 Pro · 2.5 Flash
M
Meta
Llama 4 Maverick · Llama 4 Scout
D
DeepSeek
DeepSeek V3 · DeepSeek R1
v1.1Chrome Manifest V3

Ready in 60 seconds.

Create a free account, download the extension, and load it into Chrome. Bring your own OpenRouter key and start asking models on any page.

Your API key never leaves your browserAccess is granted manually after sign-up
← Back
All projects

Return to the 404canvas index.

Up next
Untitled · 02

Behind a curtain until it's ready to stand on its own.