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OpenAI releases two open-weight models gpt-oss-120b and gpt-oss-20b under Apache 2.0 license

Open source release Provisional 92% confidence first seen

OpenAI released two open-weight language models, gpt-oss-120b (120 billion parameters) and gpt-oss-20b (20 billion parameters), both licensed under Apache 2.0. The models are optimized for consumer hardware deployment and are designed for reasoning and tool-use tasks without licensing restrictions.

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