● No install — runs in your browser

Your graphing calculator,
online.

Plug a TI-84 Plus CE into your computer and it becomes a chat client, an AI assistant and a maths solver that shows its working. Nothing to install, no server to run.

GPT

Ask anything and get an answer back on the calculator screen, kept short enough to actually read.

Math

Type an equation the way you'd write it — every key gives what's printed on it — and get worked steps, not just an answer.

💬

Chat

Message between the calculator and the browser. Rooms and multiplayer games are coming next.

How it works

The page talks to your calculator directly over USB, and to your chosen AI provider over HTTPS. There is no backend in between, which is why there is nothing to install and nothing to trust us with.

1

Load the apps

Send GPT, MATH and CHAT to your calculator with TI Connect CE. One time only.

2

Add a free API key

Groq, OpenRouter and Google all have free tiers, and setup walks you through it. Your key stays in your browser — or skip it and use CHAT.

3

Press connect

Pick the calculator from the browser's device list and start typing on it.

What you need

All of it is free, and most of it you probably already have.

A TI-84 Plus CEAny CE or CE-T. The apps are compiled C programs launched through arTIfiCE or Cesium.
Chrome or EdgeWeb Serial is not available in Safari or Firefox. Chrome on Android works too.
A free API keyFrom Groq, OpenRouter or Google AI Studio. Takes a minute and costs nothing.
A USB cableThe one that came with the calculator. Plug it straight into the computer, not through a hub.

Calculator apps

Send these across with TI Connect CE, then launch them through arTIfiCE or Cesium — they're compiled programs, so they won't run from the [prgm] menu on OS 5.5 and later.