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Tech giants are expected to spend nearly $700 billion on AI capital expenditures in 2026, with most directed at data centers, compute capacity, and power infrastructure rather than model development. OpenAI's Stargate initiative plans $500 billion in AI infrastructure, and xAI is building a campus with roughly 555,000 NVIDIA GPUs and 2 GW of power capacity. Infrastructure, not models, is becoming the primary competitive advantage.
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