Our open models are here. Both of them. openai.com/open-models

gpt-oss is out! we made an open model that performs at the level of o4-mini and runs on a high-end laptop (WTF!!) (and a smaller one that runs on a phone). super proud of the team; big triumph of technology.

i feel personally victimized by roongina george

LIVE5TREAM THURSDAY 10AM PT

Thanks Eric for my new sticker

Along with GPT5, we're open sourcing a new eval, BrowseComp Long Context! It improves upon existing long context qa evals in data quality and input difficulty. Work with Kuo Lin, Julie Wang, and our mascot the longham. A bit more below

there are cathedrals everywhere for those with the eyes to see