Semafor • Oct 30, 2025
Silicon Valley giants announce huge AI spending sprees
Alphabet shares rose on news of a major boost in capital expenditure, while Microsoft and Meta saw shares fall after announcing similar plans.
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Semafor • Oct 29, 2025
Nvidia hits $5 trillion valuation
Nvidia on Wednesday became the first publicly traded company to hit a $5 trillion valuation, bolstered by the AI boom and a spate of new deals.
Semafor • Oct 29, 2025
Autonomous weapons need more guardrails as AI takes hold
As Presidents Donald Trump and Xi Jinping are set to meet on Thursday, the US and China are both investing serious resources into building drones, missiles, and other ballistics capable of finding, following, and destroying targets.
Semafor • Oct 29, 2025
Elon Musk launches ‘anti-woke’ online encyclopedia powered by AI
Grokipedia, which suffered technical difficulties upon launch, runs on xAI's model Grok.
Semafor • Oct 29, 2025
AI agents are getting a lobby group in DC
Imbue's Matt Boulos, a founding member of the organization, hopes to see agentic AI develop common protocols, much like the early web.
Semafor • Oct 29, 2025
AWS' mega multistate AI data center is powering Anthropic's Claude
Unlike most massive AI clusters, which are in one building or close together, Amazon's Project Rainier is spread out across three states.
Semafor • Oct 29, 2025
Ex-Intel CEO Pat Gelsinger wants to Christianize Silicon Valley with AI
Gelsinger has taken up a new job at Gloo, a company building chatbots and AI assistants for religious organizations.
Semafor • Oct 29, 2025
Nvidia’s Huang defends China tech talent at DC conference
At the company’s annual developers confab, Huang mentioned several times that half of the world’s AI researchers come from China.
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Semafor Podcasts • Oct 29, 2025
Are 'Walled Gardens' The Biggest Threat To The Future of AI Agents? | Semafor Tech
Headlines
236 headlinesHealth Department Will Mine Unverified Vaccine Injury Claims With New AI Tool
Mother Jones •
Reclaiming water from contaminated brine can increase water supply and reduce environmental harm
The Conversation •
Data centers told to pitch in as storms and cold weather boost power demand
The Conversation •
NASA’s Artemis II plans to send a crew around the Moon to test equipment and lay the groundwork for a future landing
The Conversation •
Building with air – how nature’s hole-filled blueprints shape manufacturing
The Conversation •
Whether it’s Valentine’s Day notes or emails to loved ones, using AI to write leaves people feeling crummy about themselves
The Conversation •
From ski jumping to speedskating, winter sports represent physics in action
The Conversation •
Is the whole universe just a simulation?
The Conversation •
Trump’s IRS Leak Suit Pulls Back the Curtain on a Government That Can’t Protect Its Own Data
Scheer Post •
Short on resources, special educators are using AI – with little knowledge of the effects
The Conversation •
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