The Synthesis Wall: Frontier AI Without Sending Your Data

Every executive team has now had the same uncomfortable meeting. Engineering wants to use Claude for code review. Sales wants GPT-4 to draft proposals. Customer support has been quietly piping tickets into a chatbot through someone's personal API key. Legal walks in, asks one question — "where is that data going?" — and the whole program freezes. The freeze is rational. The frontier models do live on someone else's infrastructure. Your customer records, M&A drafts, source code, and medical...