That's an odd choice. I would have thought camera modules are commodity parts (have been for a long time) and there's not much margin there.

Probably they are buying the staff, not the technology.

I'm just discovering Glass Imaging (a bit difficult as their website seems overloaded), but it seems they are in software solutions, not a hardware manufacturer or designer.

Glass Imaging focuses on AI enhancement of photos (in a way that's informed by/correcting for camera hardware defects)

The article tells you right there in the 2nd paragraph what the AI connection is, and why OpenAI are presumably buying them.

This means that software is done.

Hardware is the next thing which is far more valuable IP and with its staff.