OpenAI's new Codex extension for VS Code is shockingly good.

Those devs who ignore this are going to miss out on so much.

You might even end up completely switching from your current coding agent when you see the incredible significance of this.

It's been a long long time coming.

OpenAI finally gave us a home-built extension to unleash the true power of GPT-5 into all the major IDEs -- yes this goes beyond VS Code.

The best part is it comes with GPT-5 Codex -- a model built from the ground to code code code...

Codex + Codex = ?

Answer: the stuff of dreams

And do you think anyone understands how GPT-5 breathes and thinks more than OpenAI?

When you use the Codex extension you are going to have GPT-5 at its very best.

Some of you try a model and you don't get the exact results you want -- then you immediately think the model must be terrible and you will never use it again.

Like this person on Reddit when GPT-5 first came out:

But the truth is certain models are going to perform better in certain IDEs.

They don't all use the same system prompts and model settings -- even in the same IDE for different models.

So you see, GPT-5 is going to be highly optimized in a first-party extension like Codex.

It has everything you'd expect from a coding agent -- and even beyond that:

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