# get_tokenizer

> **Function** in `langchain_core`

📖 [View in docs](https://reference.langchain.com/python/langchain-core/language_models/base/get_tokenizer)

Get a GPT-2 tokenizer instance.

This function is cached to avoid re-loading the tokenizer every time it is called.

## Signature

```python
get_tokenizer() -> Any
```

## Returns

`Any`

The GPT-2 tokenizer instance.

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[View source on GitHub](https://github.com/langchain-ai/langchain/blob/f0c5a28fa05adcda89aebcb449d897245ab21fa4/libs/core/langchain_core/language_models/base.py#L76)