A few of the things that came out of poking at AI tools instead of doing something productive.
A side-by-side comparison tool — type one prompt, get answers back from Gemini, Claude, Grok, and ChatGPT at the same time. Bring your own API keys (stored only in your browser); without them it just shows demo responses.
Nate built an experiment letting ChatGPT manage a micro-cap stock portfolio and tracking the results. I forked it and ran my own version to see what an AI would actually do with real trading decisions.