---
title: "Discussion on \"Understanding the Transformer Input Layer: Tokenization Explained.\" | Hashnode"
description: "Discussion on \"Understanding the Transformer Input Layer: Tokenization Explained.\". tLearn the fundamentals of tokenization in NLP—from word-level and character-level to advanced subword methods like BPE, WordPiece, and SentencePiece. See h"
url: "https://hashnode.com/posts/understanding-the-transformer-input-layer-tokenization-explained/68535694bbc8c161ed5a202c"
---

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Discussion

# [Understanding the Transformer Input Layer: Tokenization Explained.](https://what-happens-before-attention.hashnode.dev/understanding-the-transformer-input-layer-tokenization-explained?utm_source=hashnode&utm_medium=feed)

tLearn the fundamentals of tokenization in NLP—from word-level and character-level to advanced subword methods like BPE, WordPiece, and SentencePiece. See h

Jun 19, 2025 · 26 min read · what-happens-before-attention.hashnode.dev  
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-   [#tokenization](https://hashnode.com/tag/tokenization)
-   [#transformers](https://hashnode.com/tag/transformers)
-   [#nlp](https://hashnode.com/tag/nlp)

## Written by

[Tanayendu Bari](https://hashnode.com/@lagran)

@lagran

  
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