YingLong 6M

YingLong 6M is the smallest checkpoint in the YingLong family, built for efficient zero-shot probabilistic forecasting. The official card and released code position it as a lightweight YingLong checkpoint, and at 6M parameters it is the most latency-friendly YingLong option in the catalog — the entry point to the family for anyone who wants foundation-model forecasting at the lowest possible serving footprint.

Architecturally it is a non-causal transformer forecaster: rather than the autoregressive decoder used by language-model-style forecasters, it relies on bidirectional attention over the input history and a multi-quantile output head, so a single forward pass emits calibrated quantiles instead of a sampled point trajectory. Like the rest of the released YingLong checkpoints, the official model card states it was pre-trained on 78B time points, which is what gives the family its broad zero-shot reach.