ChatGPT 5.5 Codex is the greatest AI coding tool ever. Here's how to use it

Alex Finn · Oct 27, 2026 · 29m

ChatGPT 5.5 Codex is the great AI coding tool ever. Here's how to use it

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The prompt:

I want to build out a full stock investing app. This is an app where I can enter a company or ticker, then see their charts, get the latest news, do research, and save companies to my portfolio…