Technology for a data filter device operable to filter training data is described. The data filter device can receive training data from a data provider. The training data can be provided with corresponding metadata that indicates a model stored in a data store that is associated with the training data. The data filter device can identify a filter that is associated with the model stored in the data store. The data filter device can apply the filter to the training data received from the data provider to obtain filtered training data. The data filter device can provide the filtered training data to the model stored in the data store, wherein the filtered training data is used to train the model.