# Distilbart Truncation
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**Author:**  [@Hildweig](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Fu%2FHildweig)%5C
**Post date:** [October 22, 2020, 9:48am UTC](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Fdistilbart-truncation%2F1689%2F1 "2020-10-22T09:48:31Z")
Hello, can anyone please explain to me how is the truncation done for long sequences in Distilbart ?
Thank you very much ! This is a very important matter.
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**Author:**  [@valhalla](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Fu%2Fvalhalla)%5C
**Post date:** [October 22, 2020, 2:54pm UTC](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Fdistilbart-truncation%2F1689%2F2 "2020-10-22T14:54:02Z")
max seq len for BART is 1024 tokens, the tokenizer truncates all the tokens beyond that limit
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**Author:**  [@Hildweig](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Fu%2FHildweig)%5C
**Post date:** [October 22, 2020, 3:12pm UTC](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Fdistilbart-truncation%2F1689%2F3 "2020-10-22T15:12:56Z")
So, the tokens beyond that limit are directly deleted? (Like, there is no special truncation strategy, just a simple deletion)
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**Author:**  [@valhalla](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Fu%2Fvalhalla)%5C
**Post date:** [October 22, 2020, 3:59pm UTC](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Fdistilbart-truncation%2F1689%2F4 "2020-10-22T15:59:58Z")
yes, that’s the default behaviour, but you could also disable truncation and use your own truncation logic.