gpt-oss-20b
Compact open-weight reasoning model designed for local deployment and tool use.
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Why this model scores 77.4
Lower capability than the 120b tier is offset by easier local deployment; open weights keep diffusion, misuse access and containment difficulty high.
News tied to gpt-oss-20b
The model score of 77.4 rates this model's risk profile. The overall Doom Index of 67.9 measures the complete temporally weighted evidence record. These values answer different questions.
Each article's current Doom Index contribution is divided equally among the exact models named on that article. This prevents multi-model evidence from being claimed in full on several model pages. Model risk scores use a bounded temporal offset around their technical profile, but never feed back into the overall index.
OpenAI releases open-weight gpt-oss models
OpenAI released gpt-oss-120b and gpt-oss-20b under an open license, with reasoning, tool use and visible chain-of-thought for local and hosted deployment.
- Full item contribution
- +0.18
- gpt-oss-20b equal share
- +0.09
Model score history
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R2
Doom Score 77.4
Exact-version evidence chronology replayed after run doombench-hourly-news-20260812-132112 under fixed-sensitivity-v3.
12 Aug 2026 -
R1
Doom Score 77.6
New exact August 2025 compact open-weight model profile verified by OpenAI.
12 Aug 2026