AIX Promptplay

I wanted to see how different language models answer the same prompt, side by side, without juggling three consoles and a stack of API keys. So I built the thing I wanted: one input, several models, the answers next to each other.

It is a hobby project and it looks like one on purpose: fast to open, fast to change, no ceremony.

Everything runs in the browser. No backend holds your keys, no server sees your prompts, and there is no account. That was not a performance decision but a trust one: a tool for experimenting with half-formed ideas should not quietly keep them.

It has become how I actually work out prompts, which is the only real measure of a tool built for yourself.