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OpenAI's Ads, Harness Costs, and Apple's Nvidia Bet — September 17, 2026
OpenAI shipped ads inside ChatGPT that talk back, two years after its CEO called mixing ads with AI unsettling. A new study found the software wrapper around an AI agent can cost five times more than the model itself for the identical result. Same week, opposite money problems. We go through how OpenAI keeps the sponsored chats separate from your real conversation, why a harness barely changes whether an agent succeeds but changes the bill a lot, and why Apple's next AI server might have to lean on Nvidia's chip-to-chip networking to work at all.
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