Multi - products time series

[simbo108]

Hello,
After learning about TensorFlow time series, I was able to create a Sales forecasting model.
I have created 3 different model and concatenate it to have a 1 output.
It takes about 10 minutes to forecast one product.

The problem is that I have about 500 different products, which will take me forever to forecast all the products

My question is, Is there a way to train a model and recieve the forecast Sale of all the 500 products at once?

Thanks in advance