gpu clusters
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The economics of large-scale AI training have changed dramatically between 2023 and 2025. The explosive introduction of Blackwell-based GPUs (B100/B200/GB200), new AMD MI300X/MI325X clusters, and TPU v5p/v6 pods drastically expanded global supply. Combined with the rise of specialized GPU cloud providers—and the increasing intensity of competition—renting large GPU clusters is now the default strategy for training GPT-scale models.