Why do you think Bing Chat is going in a slightly different direction and not using this format exactly? Their prompt - https://old.reddit.com/r/bing/comments/11bd91j/release_of_th... Wouldn't it be better to unify around ChatML, for the sake of all future training data being consistent? I thought it was strange that they used but not the rest of the ChatML syntax. (There is always the possibility that they are using…
Platform lock-in. Interoperability would not only be more costly in terms of the work to design and agree on a common standard, but it'd also makes it easier to switch to a competitor.
> but it'd also makes it easier to switch to a competitor.
Thing is, the end user never sees this implementation detail, so it only matters on their side.