Microsoft CEO Satya Nadella told a court that he never received a convincing explanation from OpenAI's board about why they fired CEO Sam Altman in 2023. "Whenever I asked...why Sam was fired, [the board] never gave me a specific answer...It was amateur city as far as I'm concerned," he said. He was testifying in Elon Musk's lawsuit against OpenAI.

Japan will set up a public-private forum to counter cyber threats to its financial system posed by Anthropic's Mythos, the country's Finance Minister, Satsuki Katayama said. The forum which will include 36 entities will discuss threats, defensive measures, and plans for scenarios where threats cannot be contained. Anthropic's Mythos is capable of finding cyber security vulnerabilities in software.

GitHub rival GitLab CEO Bill Staples announced a major restructuring initiative that includes layoffs, operational changes, and a deeper push into AI-driven software development. "Software will be built by machines, directed by people," Staples wrote in a memo. Staples said the transition would be conducted "openly", including offering a voluntary separation programme for affected staff.

SoftBank Group is expected to report strong quarterly profits, supported by gains from its stake in OpenAI. However, analysts warned that rising debt used to fund its AI investments could be nearing a limit, Reuters reported. Analysts have revised SoftBank's outlook to negative, saying that "its financial capacity is likely to deteriorate because of its additional huge investment in OpenAI."

Former OpenAI CTO Mira Murati's startup 'Thinking Machines' on Monday unveiled "interaction models", AI models which are designed for real-time communication. The models will be able to listen, process and respond simultaneously unlike conventional AI models which wait for users before responding. The AI breaks communication into micro-turns of 200 milliseconds allowing it to react continuously.

The market-implied pre-IPO valuation of Claude-maker Anthropic has hit $1.4 trillion, rising 40% in just 24 days, The Kobeissi Letter reported. With this, Anthropic's valuation has jumped by 1,067% since October 2025. This comes amid reports that Anthropic's annualised revenue has surged from $100 million in 2023 to $45 billion, in addition to seeing a 1,400% rise in 12 months.

The European Commission on Monday said US-based AI firm OpenAI has offered it open access to its cybersecurity tools and features. The commission's spokesperson Thomas Regnier said they have had four to five meetings with Anthropic but cannot speculate on access to similar tools. We will work to democratise access to defensive tools, OpenAI for Countries head George ‌Osborne said.

The US Commerce Department has removed details from its website about an agreement with Google, xAI and Microsoft to test AI models for security risks, Reuters reported. The announcement webpage is no longer accessible. The Commerce Department had said on May 5 that the companies would submit new AI models to the government for security testing before public release.

A block deal in wealth-tech firm Groww has been upsized to around $600 million from the initial $500 million due to strong investor demand, Moneycontrol reported. Investors Peak XV Partners, Y Combinator, and Ribbit Capital are selling part of their stakes after the IPO lock-in period expired. The block deal has been priced at Rs 177 per share.

Afcons Infrastructure informed exchanges that it has been selected for a railway rehabilitation and construction project in Croatia valued at €677.07 million, equivalent to around ₹7,544 crore. The project includes railway track reconstruction, second line construction, electrification, signalling and telecom works, marking Afcons Infrastructure’s entry into the European infrastructure market.