gpt-oss usage policy

OpenAI Releases gpt-oss-120b and gpt-oss-20b Open-Weight Reasoning Models

OpenAI has published model cards for gpt-oss-120b and gpt-oss-20b, two open-weight reasoning models released under the Apache 2.0 license alongside a dedicated gpt-oss usage policy. This marks a significant move by OpenAI into the open-weights space, offering both a large 120B parameter model and a smaller 20B variant. The release signals a strategic shift for OpenAI, which has historically kept its frontier models proprietary.