Comprehend Custom classification training taking a lot of time

Hi,

Thanks for reaching out. The actual training time will depend on different factors such as the contents of the data, the type of classifier used, etc. Training time can vary and there is currently no estimated time on how long these training jobs can take.

That said, you can create a support case with us where you can specify this specific training job with the support team to see if we are able to provide additional details upon inspection of the training job.