Verge

US AI safety agency head resigns three months after being appointed.

Chris Fall was picked to be the Trump administration’s leader of the US Center for AI Standards and Innovation (CAISI, previously called the AI Safety Institute until it was renamed last year) in April, but now CNBC and Reuters report he is out. The reasons for his departure are unclear, as is the role of CAISI in the administration’s constantly shifting priorities around AI.

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Today’s Vergecast: The US is losing its lead in AI.

Since the beginning of the AI revolution, a few companies have claimed to be building the best and most powerful AI models. All of them were American. More recently, a few Chinese companies seem to have caught up, shipping models that are much cheaper and maybe also just as good. The Verge’s Hayden Field and Lauren Feiner join the show to explain how China made so much progress, the threat that progress represents to US companies and the US government, and what might happen next.

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Moonshot pauses Kimi K3 sign-ups after surging demand

The company said it temporarily paused new subscriptions after high usage “pushed close to the limits of our current capacity.” New subscription spots will open in “batches.” Kimi K3 was one of two Chinese models that launched over the weekend claiming to rival leading US systems from OpenAI and Anthropic.

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macOS 27 has a Siri AI writing secret you can try.

A hidden popover interface has been discovered in the macOS 27 Golden Gate beta that surfaces AI-powered contextual actions and writing tools when text is highlighted, including Rewrite, Proofread, and “Edit with Siri.” Beta users can try the unfinished feature by following the instructions provided by MacRumors.

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SpaceX is leasing AI compute to Reflection, too.

The open-source AI startup has a deal through 2029, similar to Anthropic and Google, to rent compute capacity from SpaceX’s Colossus 2 data center for $150 million per month (up to $6.3 billion), reports the Wall Street Journal.

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