AI news · Tuesday, September 8, 2026

OpenAI claims math breakthrough as controversy erupts over stolen credit

OpenAI has officially claimed to have solved the Navier-Stokes Millennium Prize problem, a 90-year-old challenge in fluid dynamics that carries a $1 million bounty. The company used a cluster of 10,000 agents running on an internal model to reach a proof in 88 hours, but the announcement quickly devolved into a heated dispute over intellectual property. NYU mathematician Tristan Buckmaster, who had been working on related proofs alongside Anthropic mathematician Levent Alpöge, alleges that OpenAI accessed their Codex data and drafts to reach the finish line first. Buckmaster claims OpenAI representatives pressured him to remove Alpöge’s name from the research due to his affiliation with a competitor. OpenAI denies using specific user data for the solution, though it conceded that de-identified product usage data helped improve its models generally.

Funding for AI continues to reach dizzying heights as investors bet on tools that can code. Cognition, the developer behind the coding assistant Devin, just raised $2 billion at a $48 billion valuation, despite spending hundreds of millions annually on its own Nvidia server clusters to reduce reliance on third-party models. Meanwhile, French lab Mistral AI secured €3 billion to bolster European 'sovereign AI' infrastructure, aiming to scale its own compute capacity and reduce dependence on U.S. providers.

Meta is making a massive play for the consumer market with Muse, an AI agent capable of handling personal tasks like booking travel or making purchases. While Meta claims the tool uses a secure virtual machine to keep user data private, the company’s history with privacy scandals like Cambridge Analytica has left many users skeptical of the promise that it won't share data with ad systems.

Data center power needs are hitting a critical bottleneck, forcing tech giants to go to extreme lengths to keep the lights on. Google is backing the $1.9 billion refurbishment of a shuttered nuclear power plant in Iowa to feed its growing AI data center fleet, a trend mirrored by Microsoft’s recent deals to restart Three Mile Island. Arm CEO Rene Haas noted that while AI could eventually cure cancer, the sheer amount of electricity required for modern AI data centers is currently limiting the industry’s ability to build out the necessary hardware. Security is also being overhauled in response to AI-driven threats; Chrome has shifted to a two-week update cycle to patch vulnerabilities faster, and Microsoft is now issuing record-breaking numbers of security fixes each month as AI models rapidly identify new flaws in Windows.

The quick hits

OpenAI claims to have solved a $1 million math puzzle, but researchers accuse the company of scraping their private work to win the race.
Cognition hit a $48 billion valuation for its AI coding assistant, signaling that investors are still pouring billions into tools meant to automate software engineering.
Meta launched Muse, a personal AI agent that can handle chores like shopping and email, testing whether users will trust the company with their sensitive personal data.
Microsoft and Google are now bankrolling the restart of shuttered nuclear power plants to satisfy the massive energy demands of their new AI data centers.

OpenAI claims math breakthrough as controversy erupts over stolen credit

The quick hits

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