# The OpenAI Model Spec

The Model Spec specifies desired behavior for the models underlying OpenAI's products (including our APIs).

Read the latest Model Spec at [model-spec.openai.com](https://model-spec.openai.com/),
and explore previous updates and related blog posts in the [changelog](CHANGELOG.md).
Learn more about the Spec's purpose and development in
[Inside our approach to the Model Spec](https://openai.com/index/our-approach-to-the-model-spec/).

This repository contains the Markdown source for the [Model Spec](model_spec.md),
together with an archive of released Model Spec
HTML versions (starting from the second release on 2025-02-12).

# License

The Model Spec is dedicated to the public domain and marked with the [Creative Commons CC0 1.0](https://creativecommons.org/publicdomain/zero/1.0/?ref=chooser-v1) deed.