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Eric Wallace @Eric_Wallace_ · 05 Aug 2025

Today we release gpt-oss-120b and gpt-oss-20b—two open-weight LLMs that deliver strong performance and agentic tool use. Before release, we ran a first of its kind safety analysis where we fine-tuned the models to intentionally maximize their bio and cyber capabilities 🧵 https://t.co/err2mBcggx
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