Startup funding surged this week as Castelion, Etched, Groq, and Rillet collectively pulled in over $2 billion across defense-tech, AI chips, and enterprise software. Six stories that reveal where institutional conviction is actually moving right now.
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Castelion just raised eight hundred million dollars for hypersonic missiles. That's not a defense contractor.
The AI infrastructure story hasn't gone away. It's just sharing the stage.
On the software side, Rillet crossed a billion dollar valuation with a one hundred million dollar Series C. It's an AI-native finance ERP platform, and this is its third raise in twelve months, with total funding now above two hundred million dollars.
Higgsfield, an AI video and image generation platform, closed a four hundred million dollar Series B at five point four billion dollars, with eighteen-plus investors led by DST Global. Compressed valuation timelines are becoming the norm in AI-native tools.
Across the week's smaller stories, one operational signal stands out. Clay, the go-to-market platform now valued at five billion dollars, published an internal AI writing policy requiring employees to defend any AI-generated content in reviews.
The through-line across this week's activity is capital concentration in dual-use technology. The top five rounds alone totalled two point eight billion dollars across hypersonic missiles, AI chips, and data center infrastructure.
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