Model · Language model
GPT OSS Safeguard 20B
An ungated 21B safety-reasoning model built on the gpt-oss family that classifies text against caller-provided safety policies, released under Apache-2.0.
- Developer
- OpenAI
- Distribution
- Downloadable weights
- Artifact licensing
- Open-licensed artifacts
- License scope
- Reviewed release artifacts and mandatory terms; not an assessment of training code or training data openness.
- Licenses
- Apache License 2.0
- Boundary
- This record represents the openai/gpt-oss-safeguard-20b release of October 2025. The gpt-oss-20b base, the 120B safeguard sibling, downstream fine-tunes, and the OpenAI hosted services remain separate boundaries.
Risk statements
The developer publishes no risk-threshold statement for this release. Absence is not evidence of safety.
Page the reviewer checked ↗ · 2026-10-09 · Research confidence: High
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