# What is fine-tuning in AI?

> Additional training that adapts a general model to a narrower purpose or style.

Source: https://www.lumin.faith/christian-ai-glossary/fine-tuning
By Andrew Kittridge · November 10, 2026

## Why it matters for Christians

A “Christian” model may be a general model fine-tuned on Christian text. Ask whose text.

## What to do

Ask a Christian AI company which model it is built on, what it was fine-tuned on, and whether it publishes its instructions. A good answer names the sources.

## Read more

- [Does ChatGPT believe in God?](https://www.lumin.faith/does-chatgpt-believe-in-god)

## Related words

- [Model](https://www.lumin.faith/christian-ai-glossary/model.md): The trained system at the core of an AI product. Many apps are built on the same few models from a handful of companies.
- [Training data](https://www.lumin.faith/christian-ai-glossary/training-data.md): The text, images, or other material a model learned from.
- [System prompt](https://www.lumin.faith/christian-ai-glossary/system-prompt.md): Hidden instructions an app gives the model before your conversation starts. It sets tone, limits, and often theology.

Every word: [Christian AI glossary](https://www.lumin.faith/christian-ai-glossary.md)