>>killer+P7
I take preview to mean the model may be retired on an accelerated timescale and replaced with a "real" model so it's dangerous to put into prod unless you are paying attention.
>>lukesc+Dc
Scheduled tasks in ChatGPT are useful for keeping track of these kinds of things. You can have it check daily whether there's a change in status, price, etc. for a particular model (or set of models).