HLD Digest: Sovereign Infrastructure and the Era of Test-Time Compute
For years, the consensus was clear: building state-of-the-art AI required a direct tribute to the hyper-scalers—tens of thousands of tightly coupled, proprietary GPUs feeding closed-source, multi-trillion-parameter monoliths. But the landscape has undergone a tectonic shift. We have moved from a brute-force regime (scaling pre-training compute) to an efficiency-first regime: Test-Time Compute (Reasoning Models) and Open-Weights Distillation.