[inputcoffee]

Actually, with Tensorflow as a Keras backend, I would expect them to be the same. I am not sure where the performance difference between TF and TF as a backend come from.

I do think that pure TF would be easier to scale up over multiple servers etc. but that's only because I don't know how it would work in Keras. Maybe its easy.

[eanzenberg]

Its pretty straightforward to convert a keras model to a tf graph, as long as you used a tf backend in keras.