Creative writing with GPT-5

Medical research with GPT-5

How Amgen uses GPT-5

From hard refusals to safe-completions: toward output-centric safety training

GPT-5 System Card

First look at GPT-5

How Cursor uses GPT-5

Introducing GPT-5

Providing ChatGPT to the Entire U.S. Federal Workforce

Introducing gpt-oss

Estimating worst case frontier risks of open weight LLMs

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