Model
gpt-oss-20b
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Tracks
- Open weights & ecosystem 2
- Safety & alignment 1
OpenAI publishes gpt-oss model card and worst-case open-weight risk estimate
Researchers deliberately fine-tuned gpt-oss to maximise biological and cyber capability and found it still fell short of OpenAI's own o3 model on both.
Safety & alignment · Open weights & ecosystem
OpenAI publishes open-weight models for the first time since GPT-2
gpt-oss-120b runs on a single 80GB GPU and matches OpenAI's own o4-mini on core reasoning benchmarks; the smaller 20b model runs on 16GB of memory.
Open weights & ecosystem