GPT2 Tokenizer 
I want to know the pad token value for the gpt2 tokenizer. I have checked the [vocab](https://s3.amazonaws.com/models.huggingface.co/bert/gpt2-vocab.json) but couldn't find any.


Thanks,
Suchith
Hi! GPT-2 doesn't use padding tokens in its tokenizer. In order to manage padding, you should use the `attention_mask` detailed in the [documentation](https://huggingface.co/transformers/model_doc/gpt2.html#transformers.GPT2Model).<|||||>Closing as of now, feel free to reopen if @LysandreJik did not answer your question completely.