# Hugging Face — Chat Templates: An End to the Silent Performance Killer

- Company: Hugging Face (huggingface.co)
- Announced: 2023-10-03
- Category: capability-change
- Coverage: not counted
- Announcement: yes
- Group: announcements
- Source: https://huggingface.co/blog/chat-templates
- Record: https://forck.live/items/1986-chat-templates-an-end-to-the-silent-performance-killer
- Subject: Platform

Hugging Face introduces chat templates as a standard attribute in tokenizers to preserve the correct chat format used during model training, preventing silent performance degradation from incorrect formatting.

## Evidence

Verbatim from https://huggingface.co/blog/chat-templates:

> Hugging Face tokenizers now have a chat_template attribute that can be used to save the chat format the model was trained with.

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Record: https://forck.live/items/1986-chat-templates-an-end-to-the-silent-performance-killer
Catalogue: https://forck.live/llms.txt
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