[LauraMedia]

I just wonder how a highly non-deterministic API like the Prompt API can work in a system that heavily focuses on interop between new and old websites.

What's going to happen is that people build stuff with the current iteration and a few years later a model update will work entirely differently and break the existing implementations. I understand that every once in a while OpenAI also shuts off older models through API but that's a central process.

What if I have Firefox 150 users that haven't updated yet and Firefox 155 users that have different models, while Chrome 160 and Chrome 170 users also exist and have different models. Is it expected that I build entirely different implementations for every browser version out there? Don't the work groups try to prevent exactly that within HTML & CSS through feature gating?