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Alexander Wei

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@alexwei_

Reasoning @OpenAI 🍓

@UCBerkeley PhD '23 | @Harvard '20
San Francisco, CA alexwei.org Joined March 2022
225 Following 26K Followers 105 Posts

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Alexander Wei Verified account @alexwei_
1/N I’m excited to share that our latest @OpenAI experimental reasoning LLM has achieved a longstanding grand challenge in AI: gold medal-level performance on the world’s most prestigious math competition—the International Math Olympiad (IMO).
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Alexander Wei Verified account @alexwei_
at the end of the day, AGI is just one problem among many. excited to see what you build next! 🐐
Sheryl Hsu Verified account @SherylHsu02 Sep 28
Life update - I left OpenAI two months ago. I'm very thankful to have had the chance to contribute to agi and work with great teammates (miss ya'll ❤️). I'm now excited to start working on some of the problems I think will be important after agi...specifically robotics! 🤖🤖
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Alexander Wei Verified account @alexwei_
AI settled a Millennium Prize Problem today. It should feel surreal.
Lijie Chen Verified account @wjmzbmr1 Sep 8
This past week at OpenAI has been the most humbling experience of my life. We all feel the weight of what’s coming.

When I joined OpenAI earlier this year, I speculated that AI might write an Annals paper in 2027—and maybe, just maybe, solve a Millennium Prize Problem in 2028. That was considered very bullish at the time. The first happened in May; the second, this September.

What a surreal time to be alive!
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Alexander Wei Verified account @alexwei_
While a resolution to Navier-Stokes is the highlight of today, this plot is really the headline result to me.

Our ongoing training run demonstrates unprecedented performance on mathematics research, as measured by our model's estimated performance on a collection of **open** math problems.

Of course, to settle Navier-Stokes, we took this model and also scaled test-time compute allll the way up.
OpenAI Verified account @OpenAI Sep 8
This model represents a step-function improvement on many benchmarks, and its training is ongoing.

Our internal model group arrived at the Navier–Stokes solution in 88 hours, using around 10,000 coordinating AI agents.

Throughout the effort, we maintained the strict safeguards—including monitoring and isolation—that we apply to all our frontier evaluations.
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Alexander Wei Verified account @alexwei_
It is remarkable—and takes a moment to process—how quickly the next generation of models will accelerate our research, and breathe new life into old problems.

This was an incredible project done by an incredible team (and model) in just a week. Ad Astra we go ✨
Lijie Chen Verified account @wjmzbmr1 Aug 1
10 proofs from our next major model Astra on long-standing open problems in mathematics and theoretical computer science (also including new circuit lower bounds for computing the permanent!)

GPT-5.6 has already enabled so much exciting work in math and science. Can’t wait to see what comes next!
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