Reasoning models that employ multi-step logical analysis before generating responses became the defining AI technology of 2025, with DeepSeek's R1 model released in January demonstrating how to build such capabilities and triggering rapid global adoption.
Autonomous coding agents evolved to handle complex software development tasks, enabling Amazon to save approximately 4,500 developer-years of work and $260 million annually while models like Claude Opus 4.5 completed more than 80 percent of coding challenges by year's end.
Data center construction and AI infrastructure investments accounted for up to 92 percent of U.S. GDP growth in the first half of 2025, with Microsoft committing $80 billion and Meta spending approximately $72 billion on global data center projects.
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