# Introducing gpt-oss-safeguard

DevFeed: [Introducing gpt-oss-safeguard](<https://devfeed.tech/articles/introducing-gpt-oss-safeguard-6497.md>)

Original publisher: [Read original article](<https://openai.com/index/introducing-gpt-oss-safeguard>)

Published: 2025-10-29T00:00:00Z

Content type: release

Language: en

Sources: [OpenAI News](<https://devfeed.tech/sources/openai-news.md>)

Topics: [gpt-oss](<https://devfeed.tech/topics/gpt-oss.md>), [OpenAI](<https://devfeed.tech/topics/openai.md>), [Chain-of-thought](<https://devfeed.tech/topics/chain-of-thought.md>), [Inference](<https://devfeed.tech/topics/inference.md>), [hugging face](<https://devfeed.tech/topics/hugging-face.md>), [model-deployment](<https://devfeed.tech/topics/model-deployment.md>)

Tags: [chain-of-thought](<https://devfeed.tech/tags/chain-of-thought.md>), [developers](<https://devfeed.tech/tags/developers.md>), [gpt-oss](<https://devfeed.tech/tags/gpt-oss.md>), [hugging-face](<https://devfeed.tech/tags/hugging-face.md>), [inference](<https://devfeed.tech/tags/inference.md>), [models](<https://devfeed.tech/tags/models.md>), [open](<https://devfeed.tech/tags/open.md>), [openai](<https://devfeed.tech/tags/openai.md>), [oss](<https://devfeed.tech/tags/oss.md>), [product](<https://devfeed.tech/tags/product.md>), [reasoning](<https://devfeed.tech/tags/reasoning.md>), [research](<https://devfeed.tech/tags/research.md>), [safety](<https://devfeed.tech/tags/safety.md>)

## AI overview

OpenAI introduces gpt-oss-safeguard, a research preview of open-weight reasoning models for safety classification. The models let developers provide and revise their own policies at inference time, classify messages and conversations, and review the model's reasoning. They are available in 120b and 20b sizes under the Apache 2.0 license and can be downloaded from Hugging Face.

## Source excerpt

OpenAI introduces gpt-oss-safeguard--open-weight reasoning models for safety classification that let developers apply and iterate on custom policies.