# Add Custom Token-Level Features

**URL:** </static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Fadd-custom-token-level-features%2F16623%3E%5C
**Category:** 🤗Transformers\
**Created:** [April 8, 2022, 5:55pm UTC](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Fadd-custom-token-level-features%2F16623 "2022-04-08T17:55:17Z")\
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**Author:** ![josephgatto](https://avatars.discourse-cdn.com/v4/letter/j/b38774/32.png) [@josephgatto](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Fu%2Fjosephgatto)%5C
**Post date:** [April 8, 2022, 5:55pm UTC](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Fadd-custom-token-level-features%2F16623%2F1 "2022-04-08T17:55:17Z")

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Suppose I have an input with 10 tokens for which I know tokens [3,4,5] are very important and I want to let BERT know about this. How can I add more weight to / inject a token-level feature into the BERT pipeline?