>Programming for different LLM APIs is a hassle

That's what they pay us for

I'd get it if it were a hassle that could be avoided, but it feels like you are trying to avoid the very work you are being paid for, like if a MCD employee tried to pay a kid with Happy Meal toys to work the burger stand.

Another red flag, although a bit more arguable, is that by 'abstracting' the api into a more generic one, you achieving vendor neutrality, yes, but you also integrate much more loosely with your vendors, possibly loose unique features (or can only access them with even more 'hassle' custom options, and strategically, your end product will veer into commodity territory, which is not a place you usually want to be.