Note: this post is from 2017. See this tutorial for an up-to-date version of the code used here. I see this question a lot -- how to implement RNN sequence-to-sequence learning in Keras? Here is a short introduction. Note that this post assumes that you already have some experience with recurrent networks and Keras. What is sequence-to-sequence learning? Sequence-to-sequence learning (Seq2Seq) is
![A ten-minute introduction to sequence-to-sequence learning in Keras](https://cdn-ak-scissors.b.st-hatena.com/image/square/16f362d05fdcc6d4ead8c4d69efd621ceddc01d1/height=288;version=1;width=512/https%3A%2F%2Fblog.keras.io%2Fimg%2Fseq2seq%2Faddition-rnn.png)