OpenAI launches its first open-weight models since GPT-2

OpenAI has launched two new open-weight AI reasoning models, marking its first release of this kind since GPT-2 over five years ago. Announced on Tuesday, the models are now available for download on the developer platform Hugging Face.

The new models, gpt-oss-120b and gpt-oss-20b, are designed with accessibility in mind. The larger model, gpt-oss-120b, can run on a single Nvidia GPU, while the smaller gpt-oss-20b can operate on a consumer laptop with just 16GB of memory, OpenAI said.

Unlike open-source models, which include access to the full training…