GPT-5.3-Codex launches today — 5 things you should know



Hey Reader,

This week is exciting.

GPT-5.3-Codex launched today, so I put together a short video covering the five key updates (and a demo of what it can do).

I didn't want to go back to GPT-5.2, after I got early access to GPT-5.3-Codex last week.

The 5.3 model is faster and smarter. I can do more in less time.

Watch here: GPT-5.3-Codex Launches Today — 5 Things You Need to Know

video preview

The new Codex App + Plan mode + GPT-5.3-Codex helped make this video possible.

Try it out and let me know what you find.

Talk soon,
Paul Solt
Paul@SuperEasyApps.com

AI Code Brief - Paul Solt

Join 5,901+ iOS/macOS developers using Codex and agents to build and ship apps. Expect practical tutorials, repeatable workflows, and hard-earned lessons from 7 shipped apps and time at Apple, Microsoft, and GoPro.

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