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"Find questions that are so hard that even if the models improve 3x they'll still get zero."

People often ask me: will reasoning models ever move beyond easily verifiable tasks? I tell them we already have empirical proof that they can, and we released a product around it: OpenAI Deep Research.

gpt-4.1 landing in chatgpt today!! we were initially planning on keeping this model api only but you all wanted it in chatgpt :) happy coding!

Input is now $2 per 1M and Output is now $8 per 1M. The cost vs intelligence curve will continue to improve rapidly.

Excited to finally have o3-pro out! Reviewers have really liked it.

I'm fortunate to be able to devote my career to researching AI and building reasoning models like o3 for the world to use. If you want to join us in pushing forward the intelligence frontier, we're hiring at OpenAI.

It's both surprising and worrisome that broad misalignment emerges simply from training models on insecure code. Great to see OpenAI publishing research investigating how this happens and how to mitigate it!

When this happened in 2014 almost everyone in AI thought it was outrageously overpriced

We’re excited to introduce Chai-2, a major breakthrough in molecular design. Chai-2 enables zero-shot antibody discovery in a 24-well plate, exceeding previous SOTA by >100x. Thread👇