The Other Side of Navier-Stokes: A Priority Dispute, Intimidation Claims, and Terence Tao's Rebuke

By Carlos Montiel | Enterprise AI Specialist
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Published: 2026-09-23 | By: Carlos Montiel | Reading time: ~7 minutes

We already covered OpenAI's September 8 announcement: 10,000 agents produced a proof concerning singularities in the Navier-Stokes equations. What we didn't report at the time, because it wasn't confirmed yet, is the uncomfortable part that surfaced afterward: a Fortune investigation revealed a priority dispute with two outside researchers, intimidation allegations, and a direct public rebuke from Terence Tao — one of the most respected living mathematicians — over how AI companies are handling this kind of announcement.

The model that did the work wasn't Astra

One detail that got lost in the initial coverage: the reasoning model that produced the mathematical proof wasn't GPT-6 Astra — it was an internal OpenAI model reported as "GPT-5.6 Sol," not yet available to the public. Astra's confirmed role in this project was different and more limited: formalizing and auditing the proof in Lean (the formal proof-verification language), not the original mathematical reasoning. It's a distinction that matters — "a model solved the problem" is not the same claim as "a model verified that another model's solution was logically valid."

The priority dispute: Buckmaster and Alpöge

According to Fortune's investigation, Tristan Buckmaster (a mathematician at NYU) and Levent Alpöge (a researcher at Anthropic) had worked independently for roughly a year on the same analytical approach before OpenAI's announcement. Allegations surfaced that OpenAI may have had access to data from Buckmaster's private Codex sessions — something Sebastien Bubeck of OpenAI directly denied: "We did not use their prompts or their proofs to instruct our models or to direct our agents."

To date, there is no public, conclusive evidence that confirms or rules out that allegation beyond Bubeck's denial — we mention it because it's a legitimate part of covering this story, not because we treat it as proven.

The intimidation allegations

The most serious part of Fortune's reporting concerns allegations of direct pressure: according to the investigation, Bubeck allegedly demanded that Alpöge's name be removed from any claim related to the problem's prize, citing his affiliation with Anthropic, and reportedly went as far as asking him: "Why would you ruin your career?" These are serious allegations, fitting for a dispute between two of the world's largest AI labs, and still without a clear public resolution as of this writing.

Terence Tao's rebuke

Terence Tao, a Fields Medal winner and one of the most-cited voices in pure mathematics, publicly criticized the broader pattern of AI companies "exploiting" the Millennium Prize Problems for marketing purposes without necessarily producing new mathematical understanding. His comparison was blunt: using these announcements this way is like "using bulldozers to loot an archaeological site" — you can extract something of value quickly, but you destroy the context and process that would have given it real long-term scientific value.

What this means for a business evaluating AI vendors

Beyond the drama between labs: the useful pattern for any business is to not take a "historic breakthrough" announcement from an AI vendor at face value without asking who else worked on the problem, which specific model did which part of the work, and whether the announcement went through real independent verification (in this case, peer review from the Clay Mathematics Institute, still pending) or just the vendor's own marketing narrative. It's the same discipline we recommend for evaluating any benchmark an AI vendor presents about its own product: verify against the primary source before repeating it as fact.
Carlos Montiel
Enterprise AI Solutions Architect
Specialist in LLMs, Agents, and Orchestration
guatemalia.com/#contacto · info@guatemalia.com

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