# Why loading saved tokenizer takes too long?

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**Category:** Beginners\
**Created:** [March 6, 2022, 1:47am UTC](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Fwhy-loading-saved-tokenizer-takes-too-long%2F15396 "2022-03-06T01:47:01Z")\
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**Author:** ![MahdiA](https://sea2.discourse-cdn.com/hellohellohello/user_avatar/discuss.huggingface.co/mahdia/32/2700_2.png) [@MahdiA](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Fu%2FMahdiA)%5C
**Post date:** [March 6, 2022, 1:47am UTC](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Fwhy-loading-saved-tokenizer-takes-too-long%2F15396%2F1 "2022-03-06T01:47:01Z")

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I am going to load my saved BERT tokenizer with about 38,000 tokens, but each time it is going to be loaded, it takes about 5 minutes to load; however the original BERT one, can be loaded in second.  
How can I know the reason of that?