Did they actually re-release 0125 as a retrained model with newer data, or was that an oversight? The date of Dec 2023 seems to suggest that was always the training time of the snapshot, rather than OpenAI silently re-revving the 0125 model with this doc update being their announcement. But it's a preview model, so maybe anything goes.

This is puzzling. They have either:

1) Replaced a pinned version with a new model (problematic for response consistency), or,

2) Decoupled knowledge cutoff from the model (how!?)