Big Tech

The company that makes the machines behind the world's most advanced chips just posted its strongest quarter on record, and its message to customers was blunt: even a faster buildout may not be enough to keep up with artificial intelligence demand.

The bill for the artificial intelligence buildout got more expensive on Wednesday, and investors noticed. Shares of debt-heavy AI infrastructure companies tumbled as the prospect of higher U.S. interest rates revived a basic question about the boom: how much return will all of this borrowed money actually produce?

Nvidia announced on Wednesday, October 14, a five-year donation of computing resources valued at 250 million dollars to strengthen research in the United Kingdom into the safety and security of agentic AI.

Character.AI, one of the earliest breakout successes of the generative AI boom, has filed for Chapter 11 bankruptcy protection in the United States. The filing, reported Tuesday by Reuters, TechCrunch and CNN, lists estimated assets and liabilities for its owner, Character Technologies, at between $50 million and $100 million each.

The company plans to keep its platform running while it pursues a court-supervised sale, which it expects to complete in late November or early December. If no buyer emerges who is willing to keep the service operating, the platform will be wound down.

For years, Nvidia's grip on China's data center AI chip market looked unshakeable. New figures from research firm IDC, reported by Reuters on October 13, show how quickly that position is eroding. Nvidia's share of the market fell to 34% in the first half of 2026, while Huawei climbed to 28% — close enough that the race for China's AI hardware business now looks genuinely competitive.

Microsoft has made its biggest move yet to run its artificial intelligence services on hardware of its own design. On Monday the company unveiled Maia 300, the third generation of its custom AI chip, and said it plans to deploy potentially more than a million of them starting next year in multi-gigawatt installations. Chief Executive Satya Nadella described the rollout as the company's biggest bet yet on its own silicon, and Azure executive Scott Guthrie said Maia is intended to become the primary system for running AI inference across Microsoft's products and services.

Broadcom chief executive Hock Tan thinks the AI boom's new limiting factor is not silicon. Speaking at a panel in Singapore on Monday, Tan said capital — not wafer or memory shortages — will be the biggest constraint on AI development as the industry pushes forward. The company, he said, is working through its wafer and memory shortages. The harder problem, increasingly, is paying for what comes next.

Who pays for the electricity that AI eats? Three senators just published their answer: you do — and Big Tech likes it that way.

On October 9, Senators Elizabeth Warren, Chris Van Hollen, and Richard Blumenthal released a 27-page report, Power and Profits: How the AI Data Center Boom Costs Households and Communities, the product of a nearly yearlong investigation into AI data centers' impact on communities. The inquiry began with information requests sent December 15, 2025, to seven companies: Amazon, Google, Meta, Microsoft, CoreWeave, Digital Realty, and Equinix.

The AI agent wars are coming to the Windows desktop — and Microsoft just gave stage time to a rival.

At its Windows and Surface event in San Francisco on October 7, Microsoft announced that Meta's Muse personal AI agent is coming to Windows as a native app. Pavan Davuluri, Microsoft's executive vice president of Windows and Devices, said Muse for Windows would arrive "coming soon" with MXC integration — a notable move from a company that is simultaneously pushing its own Copilot agent.

OpenAI's biggest model upgrade of the year is not just a model upgrade — it is a redesign of what a chatbot answer looks like.

On October 7, OpenAI began rolling out GPT-6 across ChatGPT, starting with Plus, Pro, Business, and Enterprise users and expanding to Free and Go tiers the next day. The audience is enormous: OpenAI says more than 1.2 billion people use ChatGPT each week. Paid tiers run GPT-6 Sol; free users get GPT-6 Luna, both tuned for everyday conversation.