Gpt-5 on Sahil Asharhttps://sahilashar.com/tags/gpt-5/Recent content in Gpt-5 on Sahil AsharHugoen-usTue, 10 Feb 2026 00:00:00 +0000GPT-5's First Week: Margin Engineering, Context Ceilings, and Token Disciplinehttps://sahilashar.com/writing/essays/gpt-5-margin-engineering-context-ceilings-token-discipline/Tue, 10 Feb 2026 00:00:00 +0000https://sahilashar.com/writing/essays/gpt-5-margin-engineering-context-ceilings-token-discipline/Why GPT-5’s unified router model changes AI unit economics and why token discipline is becoming a core engineering capability.