GitHub says Copilot Fusion, which handles model selection and orchestration, is now generally available, releases the GitHub Copilot app, and more (Meredith Shubel/The New Stack)

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• Gemini 4 Argon

  Google has unveiled its latest frontier AI model designed for sustained deep reasoning across demanding long-horizon workflows. Initial access is restricted to vetted cybersecurity defenders and U.S. government evaluation programs prior to a broader public and enterprise launch. Internally, the architecture is already delivering substantial infrastructure optimizations, including migrating legacy systems code and reducing data center memory footprints.

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• Nvidia's $12.9 billion Hugging Face deal draws DOJ scrutiny

  Federal antitrust regulators are examining whether the massive transaction will unfairly squeeze competing developers across the broader artificial intelligence sector. Hugging Face serves as critical open-source infrastructure for millions of researchers, raising concerns about market consolidation as the chip giant expands its footprint. This regulatory check marks another hurdle for the hardware maker's aggressive software and developer ecosystem acquisition strategy.

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• Google launches Gemini 4 Carbon with a ‘significant leap’ in cybersecurity

  The tech giant's latest frontier release aims to outpace top industry competitors while reinforcing critical software defenses against prompt injection and complex vulnerabilities. By targeting multi-day engineering workflows and reducing unverified claims, the platform provides specialized automated reasoning for enterprise development teams. Its deployment marks an aggressive push to lead high-stakes developer benchmarks without increasing token usage costs.

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