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gpt-oss-safeguard-20b

OpenAIhuggingface.co/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...

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Updated 1 h ago · first seen 11 Sept 2026

model_01M294WW9KM7CQ555DQNXZEDRK

Parameters
21.5B
T2 · 2 h ago
Context
131.1K tokens
T2 · 2 h ago
Released
18 Sept 2025
T2 · 1 h ago
License
apache-2.0
T2 · 1 h ago

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35 claims · 34 properties

Release daterelease_date2

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18 Sept 2025currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic
29 Oct 2025supersededOpenRouter public model & pricing listingT2mediumdeterministic

Opennessopenness1

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open-weightscurrentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Licenselicense1

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apache-2.0currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Architecturearchitecture1

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GptOssForCausalLMcurrentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Parametersparameter_count1

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21.5BcurrentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Context windowcontext_length1

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131.1K tokenscurrentcurrentOpenRouter public model & pricing listingT2mediumdeterministic

Max outputmax_output_tokens1

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65.5K tokenscurrentcurrentOpenRouter public model & pricing listingT2mediumdeterministic

Modalitiesmodalities1

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textcurrentcurrentOpenRouter public model & pricing listingT2mediumdeterministic

Input modalitiesmodalities_input1

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textcurrentcurrentOpenRouter public model & pricing listingT2mediumdeterministic

Output modalitiesmodalities_output1

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textcurrentcurrentOpenRouter public model & pricing listingT2mediumdeterministic

Tokenizertokenizer1

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GPTcurrentcurrentOpenRouter public model & pricing listingT2mediumdeterministic

Base modelbase_model1

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openai/gpt-oss-20bcurrentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

File sizefile_size_gb1

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13.8 GBcurrentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Hugging Face repohf_repo1

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openai/gpt-oss-safeguard-20bcurrentcurrentOpenRouter public model & pricing listingT2mediumdeterministic

Pipeline tagpipeline_tag1

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text-generationcurrentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

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https://huggingface.co/openai/gpt-oss-safeguard-20bcurrentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Downloadsmetric.downloads1

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63,577currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Likesmetric.likes1

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257currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Descriptiondescription1

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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...currentcurrentOpenRouter public model & pricing listingT2mediumdeterministic

Gatedgated1

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NocurrentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Groq model idgroq_model_id1

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openai/gpt-oss-safeguard-20bcurrentcurrentGroq — docs & pricingT1highdeterministic

Groq statusgroq_status1

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previewcurrentcurrentGroq — docs & pricingT1highdeterministic

Hf inference providershf_inference_providers1

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featherless-ai, groqcurrentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Last modifiedlast_modified1

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2026-01-14T18:38:05+00:00currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Library namelibrary_name1

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transformerscurrentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Downloads all timemetric.downloads_all_time1

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766,669currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Model typemodel_type1

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gpt_osscurrentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Openrouter idopenrouter_id1

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openai/gpt-oss-safeguard-20bcurrentcurrentOpenRouter public model & pricing listingT2mediumdeterministic

Reasoningreasoning1

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YescurrentcurrentOpenRouter public model & pricing listingT2mediumdeterministic

Structured outputstructured_output1

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YescurrentcurrentOpenRouter public model & pricing listingT2mediumdeterministic

Supported parameterssupported_parameters1

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include_reasoning, max_tokens, reasoning, response_format, seed, stop, structured_outputs, temperature, tool_choice, tools, top_pcurrentcurrentOpenRouter public model & pricing listingT2mediumdeterministic

Tagstags1

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transformers, safetensors, gpt_oss, text-generation, vllm, 8-bit, mxfp4currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Tool callingtool_calling1

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YescurrentcurrentOpenRouter public model & pricing listingT2mediumdeterministic

Weights dtypeweights_dtype1

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BF16, U8currentcurrentHugging Face Hub (public pages, model cards, papers)T2mediumdeterministic

Claims are temporal and append-only: a new observation closes the previous claim (valid_to) instead of overwriting it. Conflicting claims from different sources are kept side by side and flagged — never averaged. Methodology →