PatchTST (ETTh1)

This checkpoint is IBM's upstream PatchTST reference model for ETTh1 rather than a broad multi-domain TSFM family card.

At 616K parameters it uses patch tokenization and Transformer blocks to model long-horizon time-series behavior efficiently. The catch is the training scope: per the official model card, the checkpoint is trained on the ETTh1 train split covering all seven ETTh1 channels, and that same seven-series target shape is what it expects at inference time. It is tuned around the exact ETTh1 setup instead of generic univariate forecasting, so it does not transfer to arbitrary series the way the foundation models here do.