From the source
OpenAI released two open-weight reasoning models, gpt-oss-safeguard-120b and gpt-oss-safeguard-20b, post-trained from the gpt-oss models to label content under a provided policy.
From the source
gpt-oss-safeguard-120b and gpt-oss-safeguard-20b are two open-weight reasoning models post-trained from the gpt-oss models and trained to reason from a provided policy in order to label content under that policy.
openai.com