AI BRIEFING · 2025-12-30

AI Briefing — December 30, 2025

The 10 most important AI stories of December 30, 2025, hand-curated from the day's coverage. Every story links to its primary source.

01

AI Debt Fears, NVIDIAs Moat, Musks Compute Race

Forward Future ↗

Debt markets cool, NVIDIA's hold, Intel unveils mega-chips, xAI claims compute lead, 50 AI billionaires, hacked robots, Waymo tests Gemini, nuclear powers data centers.

03

SoftBank says it has completed a 22.5B investment in OpenAI, finalizing its up to 40B investment commitment announced in March and taking its stake to 11 (SoftBank Group Corp.)

TechMeme ↗

SoftBank Group Corp.:SoftBank says it has completed a $22.5B investment in OpenAI, finalizing its up to $40B investment commitment announced in March and taking its stake to ~11%— SoftBank Group Corp. ("SBG" or the “Company") today announced that it has completed an additional investment of $22.5 billion …

04

Musks xAI Buys Building to Expand Colossus Data Center

Bloomberg Technology ↗

Elon Musk’s xAI is planning an expansion of its massive data center complex in Memphis, and has purchased a third building in the area that will bring the company’s artificial intelligence computing capacity to almost 2 gigawatts, the billionaire wrote Tuesday in a post on X.

05

Demand at Unheralded Chipmakers Key to AIs Long-Term Future

Bloomberg Technology ↗

Welcome to Tech In Depth, our daily newsletter about the business of tech from Bloomberg’s journalists around the world. Today, in the second installment of our reports looking ahead to tech trends in 2026, Ian King writes that watching the less-publicized chipmakers may be a better way of assessing the future of artificial intelligence than keeping an eye on market leader Nvidia.

06

AI Memory Demand Propels Kioxia to Worlds Best-Performing Stock

Bloomberg Technology ↗

Artificial intelligence’s insatiable appetite for data storage has delivered Japanese memory chipmaker Kioxia Holdings Corp. world-beating stock gains this year, a sign that the AI boom is alive and well despite recent market jitters.

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