# tinker_cookbook.tokenizer_utils.unregister_tokenizer ### [**tinker_cookbook.tokenizer_utils.unregister_tokenizer**](https://github.com/thinking-machines-lab/tinker-cookbook/blob/main/tinker_cookbook/tokenizer_utils.py#L167)(*name*) Unregister a custom tokenizer factory. **Parameters:** - [**name**](https://github.com/thinking-machines-lab/tinker-cookbook/blob/main/tinker_cookbook/tokenizer_utils.py#L167) (*str*) – The tokenizer name to unregister. **Returns:** True if the tokenizer was unregistered, False if it wasn't registered.