Cortex is an AI I wrote from scratch in Go — the inference engine, the tokenizer, the GGUF loader, the CUDA kernels. It is not a wrapper around somebody else's API. It runs on one GPU in my house, and when you talk to it here, that is the machine answering you.
It has no access to that machine. No files, no terminal, no programs, no network. It can read what you send it and write words back, and that is the entire list.
Answers are signed on my PC and checked in your browser before they're shown. Nothing you type is stored for longer than a few minutes, and Cortex remembers nothing between questions.
On stream it talks to chat alongside me — one or two lines at a time, dry, and happy to disagree. Switch the voice above to see that version.
It has no capture, no screen access, no game state. It will not tell you who's winning, because it genuinely doesn't know and I'd rather it say so.
Chat can talk to it. Chat can't reprogram it. What it will and won't say is fixed before it ever reaches the stream.
My PC has no port open to the internet. It reaches out to this site, picks up a question, and answers. Nothing here can connect to it.
The program that answers you links no file access, no shell, no tools at all — not restricted access, none. There is nothing to talk it into using.
Every question starts from a blank slate, so nobody can prime it with one message and collect on the next, or poison what it says to you.
Each answer is signed by a key that never leaves my machine and checked by your browser against the key below. This site can stop Cortex talking. It cannot put words in its mouth.
Cortex's public key — the answer above is verified against this exact value, which is written into this page rather than fetched from anywhere: