OpenAI· GPT / ChatGPT / APIOpen-weight release

Introducing gpt-oss-safeguard

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

From the source

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

openai.com

Announced

29 Oct 2025 00:00 UTC

Detected

03 Aug 2026 21:11 UTC (+278d after)