AI Weekly Roundup (Apr 27–May 3, 2026): Amazon’s $20B AI Chips, OpenAI GPT‑5.5, KV Cache Breakthroughs, and Enterprise Shifts
Hardware revenue is climbing, models are specializing, and the enterprise stack is getting reshaped. This week’s AI developments weren’t just incremental—they signaled how compute economics, model architectures, and platform control points are converging into the next phase of AI maturity. In this AI weekly roundup, we break down the top moves—Amazon’s $20B custom silicon run…