AI09/19/2026@TechDeskOpenAI Releases Open-Weight gpt-oss-120b and gpt-oss-20bOpenAIStarts 08/05/2025CONFIRMED88% CONFIDENCEOpenAI's[1][2] own model release notes date this entry August 5, 2025OpenAI releases two open-weight reasoning models, gpt-oss-120b and gpt-oss-20b, for teams that want to run and customize models themselves.1.0000