I'd be interested in knowing if anyone is seriously using the assistants API, it feels like such a lock in to OpenAIs platform when your can alternatively just use completions that are much more easily interchanged.
Not sure what you mean by this.
And there are some serious people at Anthropic, they’ll get the typo thing if they haven’t already (been a busy week and change, they easily could have shipped a fix and I overlooked it).
I'd guestimate 99% of people using LLMs are using instruct-based message interfaces that have a variation of system/user/assistant. The top models mostly only come as a completion models, and even Anthropic has switched to a message based API
In some cases the lock in is what it is for now because a particular model in reality is so far ahead, or staying ahead.
It doesn't mean other options won't become available, but it does matter to relate your need to your actions.
Getting something working consistently for example might be the first goal, and then learning to implement it with multiple models might be secondary. The chances of that increase the later other models are explored in some cases.
It should be possible to tell pretty quickly if something works in a particular model that's the leader, how others compare to it and how to track the rate of change between them.