The AI Investor(@The_AI_Investor):David Sacks on All In: payback period as the Northstar metric for AI infrastructure. CoreWeave says typical five year deals deliver about 2.5 years payback. SpaceX pays back in roughly one year because it monetizes around $50B per gigawatt while CoreWeave sits near $20B per gigawatt. SpaceX gets effectively spot pricing on 90 day cancelable deals, while CoreWeave locked five year contracts at older prices and spot compute moved way up on scarcity and demand. As long as payback stays short, the economics are nearly unlosable and debt rolls fast. The warning signal is payback stretching out, which implies demand softening, spot falling, or execution delays.

2026.10.18 15:18

David Sacks on All In: payback period as the Northstar metric for AI infrastructure. CoreWeave says typical five year deals deliver about 2.5 years payback. SpaceX pays back in roughly one year because it monetizes around $50B per gigawatt while CoreWeave sits near $20B per gigawatt. SpaceX gets effectively spot pricing on 90 day cancelable deals, while CoreWeave locked five year contracts at older prices and spot compute moved way up on scarcity and demand. As long as payback stays short, the economics are nearly unlosable and debt rolls fast. The warning signal is payback stretching out, which implies demand softening, spot falling, or execution delays.