gpt-oss-120b & gpt-oss-20b Model Card

OpenAI Blog
Aug 5, 2025 00:00
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Summary

The article announces the release of gpt-oss-120b and gpt-oss-20b, two open-weight reasoning models made available under the Apache 2.0 license. This move increases accessibility to powerful AI models for research and development, promoting transparency and innovation in the AI community.

We introduce gpt-oss-120b and gpt-oss-20b, two open-weight reasoning models available under the Apache 2.0 license and our gpt-oss usage policy.