OpenAI Released October 29, 2025 Synced Apr 19, 2026

OpenAI: gpt-oss-safeguard-20b

gpt-oss-safeguard-20b is a safety reasoning model from OpenAI built upon gpt-oss-20b. This open-weight, 21B-parameter Mixture-of-Experts (MoE) model offers lower latency for safety tasks like content classification, LLM filtering, and trust...

Tool useReasoning

Why it stands out

131K-token context window handles longer documents and multi-turn conversations without truncation.

Combines tool use with reasoning — a strong baseline for agentic and multi-step workflows.

$0.075/M input makes it practical for always-on agents, batch processing, or high-volume classification.

What to watch

Text-only input — image or audio workflows require a separate model in the pipeline.

No benchmark score currently tracked — evaluate using task-specific testing alongside pricing and capability data.

Release timeline

Tracked events for OpenAI: gpt-oss-safeguard-20b.

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release

OpenAI: gpt-oss-safeguard-20b entered the tracked catalog

October 29, 2025

gpt-oss-safeguard-20b is a safety reasoning model from OpenAI built upon gpt-oss-20b. This open-weight, 21B-parameter Mixture-of-Experts (MoE) model offers lower latency for safety tasks like content classification, LLM filtering, and trust & safety labeling. Learn more about this model in OpenAI's gpt-oss-safeguard [user guide](https://cookbook.openai.com/articles/gpt-oss-safeguard-guide).

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Recent changes

LaunchOct 29

OpenAI launched OpenAI: gpt-oss-safeguard-20b

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