# Is TF-IDF featurizer beneficial in rasa as custom featurizer?

**URL:** <https://forum.rasa.com/t/is-tf-idf-featurizer-beneficial-in-rasa-as-custom-featurizer/44909>\
**Category:** Rasa Open Source\
**Created:** [June 22, 2021, 9:35am UTC](https://forum.rasa.com/t/is-tf-idf-featurizer-beneficial-in-rasa-as-custom-featurizer/44909 "2021-06-22T09:35:32Z")\
**Posts on this page:** 1\
**Showing post:** 1

<div class="post-metadata">

**Author:** ![lokkrish](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.rasa.com/lokkrish/32/15493_2.png) [@lokkrish](https://forum.rasa.com/u/lokkrish)\
**Post date:** [June 22, 2021, 9:35am UTC](https://forum.rasa.com/t/is-tf-idf-featurizer-beneficial-in-rasa-as-custom-featurizer/44909/1 "2021-06-22T09:35:32Z")

</div>

Hi,

I am wondering why tf-idf featurizer is not part of Rasa components. It is easily implementable and similar to countvector featurizer. But i dont understand why it is not provided. Is there any reason that this featurizer cant perform well or degrades the model?

---

_[View the full topic](https://forum.rasa.com/t/is-tf-idf-featurizer-beneficial-in-rasa-as-custom-featurizer/44909)._