# OpenAI "Solved" Navier-Stokes for $1,000,000. Everyone's Angry. Here's Why.

Source: https://qvantx.com/insights/openai-solved-navier-stokes-for-1-000-000-everyones-angry-heres-why/
Author: Ani Björkström — QvantX Sweden AB, Stockholm
Published: 2026-09-13
Updated: 2026-09-20
Video: https://www.youtube.com/watch?v=sqW-hqdFJOQ (5 min)
Topic: AI Tools

License: free to quote and cite with attribution to https://qvantx.com

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_AI TOOLS_

## Did OpenAI Really Solve the Navier-Stokes Millennium Problem?

#### Key takeaways

- OpenAI says 10,000 AI agents solved the $1 million Navier-Stokes Millennium Prize Problem in 88 hours, but no independent mathematician has verified the proof.

- NYU mathematician Tristan Buckmaster alleges an OpenAI researcher told him to remove his research partner Levent Alpöge's name or "ruin your career."

- 25 Fields Medal winners, including Terence Tao, signed a declaration accusing AI companies of using famous problems as "marketing proof points."

Ani Björkström, the Stockholm-based AI consultant behind the YouTube channel "Ani Björkström | AI for Finance," breaks down the OpenAI Navier-Stokes controversy not as a mathematician, but as someone who works in finance and recognizes the pattern: a huge result announced before anyone could check it, built by a method nobody outside the company can see. The video walks through what OpenAI actually posted, what Tristan Buckmaster says happened in his calls with OpenAI, what Terence Tao and 25 Fields Medalists wrote in their declaration, and a plain scoreboard of what is confirmed versus what is still just a claim.

### What did OpenAI actually claim about Navier-Stokes?

On September 8, 2026, OpenAI posted on X that it had solved the Navier-Stokes problem using roughly 10,000 AI agents working together for 88 hours. The post was seen by 73 million people, according to the video.

The Navier-Stokes equations describe how water, air, and blood move, and are used daily in weather forecasting, aviation, and medicine — yet nobody has ever proven they always produce a stable solution. It is one of seven Millennium Prize Problems, each carrying a $1 million reward, and only one of the seven has ever been solved. Björkström notes that while headlines call it a "90-year-old problem," she could not find the source of that number: the equations themselves are roughly 200 years old, and the Millennium Prize itself is 26 years old.

### What does Tristan Buckmaster allege happened?

Tristan Buckmaster, a mathematician at New York University, says OpenAI's announcement followed months of his own unpublished work on the same problem. He had been collaborating since August with a research partner, Levent Alpöge, who works at Anthropic — OpenAI's rival — and says OpenAI began its push only after learning the two were close to a result.

According to Buckmaster's four-page statement, he alleges the OpenAI model used the same method he had developed, that he directly asked OpenAI whether its model had read his notes, and that an OpenAI researcher gave him an ultimatum: remove Alpöge's name from any credit or forfeit the prize. When he refused, Buckmaster says the researcher told him, "Why would you ruin your career?" Sébastien Bubeck replied to the allegations on X on OpenAI's behalf. Björkström stresses these are claims from one man, not established facts.

### What did the 25 Fields Medalists say?

Days after Buckmaster's statement circulated, 25 Fields Medal winners — the highest honor in mathematics — signed an open declaration titled "A Severe Misalignment of AI in Mathematics," published on Terence Tao's blog on September 11, 2026. Notably, the signatories do not claim the proof itself is wrong.

Instead, they say the result was announced before anyone could check it, that no proper write-up exists, and that other contributors did not receive credit. Terence Tao, often called the greatest living mathematician, said AI companies are using famous problems as "marketing proof points" — using his words, selling a product rather than advancing science. OpenAI has since canceled its sponsorship of a university math competition, per the video.

### Has anyone actually verified the proof?

No. As of the video's recording, nobody outside OpenAI has checked the proof, and no mathematician — including the signatories of the Fields Medalists' declaration — has said it is wrong. Björkström's point is that both things can be true at once: the result could be genuine and historic, and the process could still have been handled badly, which is exactly what 25 of the world's top mathematicians are arguing.

Her conclusion echoes Tao's phrase directly: a result nobody can independently check is "not true and it is not false. It is just useful" — a framing she says finance professionals should recognize immediately from unverified claims in their own industry.

| Event | Source | What happened |
|---|---|---|
| OpenAI announcement | OpenAI post on X, Sept 8, 2026 | Claims 10,000 AI agents solved Navier-Stokes in 88 hours; seen by 73 million people |
| Buckmaster's statement | 4-page PDF, cims.nyu.edu | Alleges OpenAI used his method and pressured him over partner credit, including the "ruin your career" quote |
| OpenAI's response | Sébastien Bubeck reply on X | OpenAI representative responds to Buckmaster's allegations |
| Fields Medalists' declaration | Terence Tao's blog, Sept 11, 2026 | 25 Fields Medal winners say the result was announced before verification and without proper credit |
| Verification status | As reported in the video | No independent mathematician has confirmed or refuted the proof |

#### FAQ

**What is the Navier-Stokes Millennium Prize Problem?**

It is one of seven Millennium Prize Problems, each worth $1 million, asking whether the Navier-Stokes equations — which describe how water, air, and blood move — always produce stable, well-behaved solutions. Only one of the seven Millennium Prize Problems has ever been solved.

**Who is Tristan Buckmaster and what does he allege?**

Tristan Buckmaster is a mathematician at New York University who had been working on the Navier-Stokes problem since August 2026 with research partner Levent Alpöge, who works at Anthropic. He alleges OpenAI's model used his method, and that an OpenAI researcher pressured him to drop Alpöge's name from credit, warning him, "Why would you ruin your career?"

**What did Terence Tao say about AI and mathematics?**

Terence Tao co-signed a declaration with 25 Fields Medal winners arguing that AI companies use famous unsolved problems as "marketing proof points" — announcing results before independent verification, without proper write-ups, and without crediting other researchers involved.


## Full video transcript

[0:00] "Why would you ruin your career?" A mathematician in New York says an Open AI researcher said [music] this to him. Why? Because he asked them to give credit to his research partner. Four days earlier, Open AI announced something huge. 10,000 AI agents had solved one of the hardest math problem in the world in 88 hours. The prize for that problem is $1 million. Since then, 25 of the best mathematicians alive have signed a letter [music] against Open AI. These are Fields Medal winners, biggest prize in mathematics. Open AI also canceled its sponsorship of a university competition, and nobody has checked the proof still. I'm not a mathematician. I work in finance, and that is exactly why this story matters to me.

[0:50] Because this is a story about a huge claim that nobody can check. Stay with me. The part that should really worry you is not the math. On the 8th of September, Open AI said it solved the Navier-Stokes problem. Not one model, a group of AI agents, around 10,000 of them. They worked for 88 hours. 73 million people saw that post. So, what is Navier-Stokes? This equation explain how water, air, and blood move. We use them every day for weather, airplane, medicine. And here is the strange part. We have never proved that they always work. It is one of the seven famous unsolved problems.

[1:36] Each one is worth $1 million. Only one has ever been solved. Quick thing. Every headline calls this a 90-year-old problem. I tried to find where that number comes from. I couldn't. The equations are 200 years old. The prize is 26. If you know where 90 comes from, tell me in the comments, please. And remember that feeling number everybody repeats that nobody can check. Now, what happens behind the announcement? Be careful here. This is one side of an argument. These are claims from one man, not proven facts. His name is Tristan Buckmaster. He teaches at New York University.

[2:22] Since August, he was working on this problem with a partner. His partner is called Lavent Alpok. And this is important. Alpok works at Anthropic, OpenAI's biggest rival. They were close. They were moving fast. Then, OpenAI announced they had solved it. Buckmaster says five things. One, he says OpenAI only started this after they learned he was close. Two, he says their model used the same method he created. Three, he says he asked them a direct question, "Did your model read my notes?" Four, he says an OpenAI researcher gave him a choice, "Remove your partner's name or give up the prize." Five, he says when he refused, that researcher said this, "Why would you ruin your career?" And if you don't want me to be nice, then I don't have to be nice.

[3:19] Stop for a second. Think about what that means. Imagine you work on something for years and then someone tells you to remove your partner's name or lose everything. Days later, 25 Fields medal winners signed an open letter. And listen carefully to what they say. They do not say the proof is wrong. Nobody says that. They say it was announced before anyone checked it. They say there is no proper write up. They say other people did not get credit. Then Terrence Tao spoke. Many people call him the greatest living mathematician. He said AI companies use famous problems as his words, marketing proof points.

[4:07] In simple English, he thinks they sell a product not to help science. If you want more of this story behind the headline from someone who actually works in finance, subscribe. And if this made you think, leave a like and a comment. Okay, back to it. Quick scoreboard, because this is being reported badly. OpenAI announced the solution. True. Someone has checked it. No. The proof is wrong. Nobody has said that. Here is uncomfortable ending. OpenAI might be completely right. This might be a real historic result, and it could still have been handled badly. 25 of the best mathematicians alive think it was.

[4:55] Both can be true, but I keep coming back to what Tao said, marketing proof point, because that is the problem with a result nobody can check. It is not true and it is not false. It is just useful.