LIVE5TREAM THURSDAY 10AM PT

Want to see our open models in action? Watch how gpt-oss builds a video game—using tools step-by-step within chain-of-thought reasoning 👾🍓

We released two open-weight reasoning models—gpt-oss-120b and gpt-oss-20b—under an Apache 2.0 license. Developed with open-source community feedback, these models deliver meaningful advancements in both reasoning capabilities & safety.

Today we release gpt-oss-120b and gpt-oss-20b—two open-weight LLMs that deliver strong performance and agentic tool use. Before release, we ran a first of its kind safety analysis where we fine-tuned the models to intentionally maximize their bio and cyber capabilities 🧵

Our open models are here. Both of them.

This week, ChatGPT is on track to reach 700M weekly active users — up from 500M at the end of March and 4× since last year. Every day, people and teams are learning, creating, and solving harder problems. Big week ahead. Grateful to the team for making ChatGPT more useful and delivering on our mission so everyone can benefit from AI.

i usually think articles like this miss the mark, but this one really captured the spirit of mark and jakub's partnership

Does ChatGPT really cause brain rot? Our Head of Education Leah Belsky and two college students join @andrewmayne to discuss this and more on episode 4 of the OpenAI Podcast.

As ChatGPT becomes a go-to tool for students, we’re committed to ensuring it fosters deeper understanding and learning. Introducing study mode in ChatGPT — a learning experience that helps you work through problems step-by-step instead of just getting an answer.

ChatGPT agent is now fully rolled out to all Plus, Pro, and Team users. Sorry about the delay!