AI BRIEFING · 2025-09-23

AI Briefing — September 23, 2025

The 10 most important AI stories of September 23, 2025, hand-curated from the day's coverage. Every story links to its primary source.

03

XAI Colossus 2 First Gigawatt AI Data Center

Next Big Future AI ↗

XAI Colossus 2’s is targeting ~1 Gigwatt as soon as possible. They have natural gas turbines for primary generation, batteries for stability, and grid for long-term scalability. XAI Colossus 2 has power from seven installed SMT-360/Titan-350 Natural Gas Turbines. The seven turbines in question are deployed at the Southaven, Mississippi site 6 miles from Colossus ...Read more

05

Microsofts AI CEO on the future of the browser

The Verge ↗

The AI browser wars are heating up. Google has Gemini in Chrome, Perplexity is building its Comet AI browser, and The Browser Company just got acquired by Atlassian for $610 million. Now, Microsoft wants to be part of the AI browser conversation. I sat down with Microsoft AI CEO Mustafa Suleyman today to talk about […]

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