Mathematician Will Sawin discusses his experience reviewing and refining a mathematical proof devised by OpenAI's internal model—and what that could mean for mathematics.

The answer is: lots of investors in an extraordinarily deep and liquid market. Unprecedented as the serving of supersized IPO s is, America’s extraordinary stockmarket will gulp it down. In the years to follow, though, expect some indigestion.

OpenAI, Oracle and Related Digital discuss the Stargate Michigan buildout, AI infrastructure, jobs and community plans.

Under Sanders' proposal, the federal government would acquire half of each major AI company's equity through a one-time levy. Those shares would be placed into a newly created sovereign wealth fund, giving the public voting rights and equal representation on each company's board.

Open-weight AI models with advanced capabilities and no safeguards are becoming much more accessible. While they can be useful, AI safety experts have concerns.

Artificial intelligence company Anthropic said Thursday it had raised $65 billion in a new funding round that values the Claude maker at $965 billion.

Nine banks have been offered access to GPT 5.5 Cyber, as fierce rival Anthropic has blocked previews of its tool.