A Research Preview of Codex

Some engineers on my team at Assembled and I have been a part of the alpha test of Codex, and I'll say it's been quite impressive.

We’ve long used local agents like Cursor and Claude Code, so we didn’t expect too much. But Codex shines in a few areas:

Parallel task execution: You can batch dozens of small edits (refactors, tests, boilerplate) and run them concurrently without context juggling. It's super nice to run a bunch of tasks at the same time (something that's really hard to do in Cursor, Cline, etc.)

It kind of feels like a junior engineer on steroids, you just need to point it at a file or function, specify the change, and it scaffolds out most of a PR. You still need to do a lot of work to get it production ready, but it's as if you have an infinite number of junior engineers at your disposal now all working on different things.

Model quality is good, but hard to say it's that much better than other models. In side-by-side tests with Cursor + Gemini 2.5-pro, naming, style and logic are relatively indistinguishable, so quality meets our bar but doesn’t yet exceed it.

If you aren't hiring junior engineers to do these kinds of things, where do you think the senior engineers you need in the future will come from?

My kid recently graduated from a very good school with a degree in computer science and what she's told me about the job market is scary. It seems that, relatively speaking, there's a lot of postings for senior engineers and very little for new grads.

My employer has hired recently and the flood of resumes after posting for a relatively low level position was nuts. There was just no hope of giving each candidate a fair chance and that really sucks.

My kid's classmates who did find work did it mostly through personal connections.

Same, mine is about to graduate with a CS masters from a great school. Couldn't get any internships, and is now incredibly negative about ever being able to find work, which doesn't help. We're pretty much looking at minimum wage jobs doing tech support for NGOs at this point (and the current wave of funding cuts from Federal government for those kind of orgs is certainly not going to help with that).

With so many graduates looking for a job why don't they bang together and do something. If not for money then just to show off their skills, something to put in the resume.

It's not going to get any easier in next next few years, I think. Till the point when fresh grad using AI can make something valuable. After that it will be period when anybody can just ask AI to do something and it will find soft in its library or write from scratch. In long terms, 10 years may be, humanity probably will not need this many developers. There will be split like in games industry: tools/libs developers and product devs/artists/designers. With the majority in second category.