Major tech companies are investing billions to expand AI infrastructure in 2025, competing to dominate the growing market for services like ChatGPT and Gemini. They're building data centers, sourcing specialized chips from Nvidia and AMD, and investing in renewable energy to power AI operations. OpenAI, Microsoft, Google, and AWS are all making strategic investments in AI-specific facilities. This competition has global implications for supply chains, energy consumption, and cybersecurity. Analysts predict record spending on AI infrastructure in 2025 as businesses increasingly adopt generative AI tools.