The a16z Show AI’s Capital Flywheel: Models, Money, and the Future of Power
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Feb 19, 2026 
Sarah Wang, an a16z GP who backs frontier AI model teams, and Martin Casado, an a16z GP and infrastructure veteran, explore the current AI funding surge. They discuss why capital, compute, and rapid model gains make this cycle unique. They unpack blurred lines between apps and infrastructure, massive new round dynamics, talent wars, custom silicon economics, generative 3D, and two divergent industry futures.
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Capital-Driven Capability Flywheel
- Frontier model companies can raise enormous capital and rapidly translate it into capability and demand.
- That creates a new capital flywheel unlike past internet cycles where supply sat idle.
No Dark GPUs: Demand Matches Spend
- There is no GPU supply overhang this cycle, so investment directly creates usage.
- That fundamentally changes how risk from supply manifests versus the internet era.
Apps And Infra Are Merging
- App and infrastructure lines are blurring as model companies act like both.
- This creates new financing strategies and faster platformization timelines.