Ted,
I'm assuming you're not in the OAI marketing dept because leading with a simple thumbnail like "Luna < Terra < Sol < Astra" is helpful framing and dropping next-level bombs like:
> "Terra is probably better than Astra and Sol at technical communication, similar on vision and computer use (but much faster!), and a bit worse on most other things. For API developers, it's a nice midrange option if you want something cheaper than Sol but a lot smarter than Luna (especially for vision / computer use / communication). For subscribers, it's not a bombshell release - if you're hitting usage limits, maybe it helps you go a bit further, and if you want clearer communication or faster computer use, it can be a nice option to select."
Is just far too clear and useful! I'm kidding... but it's funny because it's a little bit true.
> Our intention is to make things clear and simple
Your post is the single best product marketing communication I've ever seen from OAI. Serious suggestion: maybe just say something like that on the website. Not buried in a blog post but above the fold.