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Startups & Venture·October 1, 2026·1 min read

Kevin Mandia’s new ‘agent swarm’ security startup Armadin raises $255.5M at $2.5B valuation

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A $255.5M raise at a $2.5B valuation for an ‘agent swarm’ security startup is a bet that AI-native offense/defense simulation becomes a core control, not a niche tool. CISOs should start asking existing vendors how they plan to use multi-agent systems for continuous testing—waiting for annual pen tests will look increasingly exposed.

Startups & Venture

SoftBank made the final $10B investment in its $30B pledge to OpenAI's last funding round; source: Nvidia also made its final $10B investment in the round

Another $20B from SoftBank and Nvidia into OpenAI cements that frontier model development is now financed like long-horizon infrastructure, not typical SaaS. For builders, this concentration of capital means you’re unlikely to compete at the foundation layer—your leverage is in domain data, distribution, and workflow depth on top.