[KongchangAI]
ConceptTraining Data Cutoff / 知识截止日期 / 数据截止时间

Training Data Cutoff Date

The latest point in time of the corpus ingested during the pre-training phase of a large model, which determines the upper bound of the model's knowledge currency. Due to data collection and training cycles, a model's knowledge is typically six months to one year behind its release date, and events closer to the cutoff are underrepresented in the training corpus.

Core Facts

Timeline (last 90 days)

Oct 13

The root cause of a new brand's zero mentions in AI search is: the training data cutoff date is earlier than the brand's founding time, and the page weight in real-time retrieval is extremely low, so both paths are blocked.

Unverified50%
Sep 12

The training data cutoff date refers to the latest time point of the corpus ingested by the model during the pre-training phase.

Verified65%
Sep 12

The closer an event is to the cutoff date, the smaller its share in the training corpus, and the less clearly the model has mastered it.

Verified65%

All Facts (3)

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