OpenAI Blog

Update to GPT-5 System Card: GPT-5.2

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GPT-5. 2 is the latest model family in the GPT-5 series.

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OpenAI Blog
Oct 29, 2025

gpt-oss-safeguard technical report

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. In this report, we describe gpt-oss-safeguard’s capabilities and provide our baseline safety evaluations on the gpt-oss-safeguard models, using the underlying gpt-oss models as a baseline.