The Duality of the AI Build-Out

Tech companies are simultaneously embedding specialized AI agents into their own products and building MCP plugins so those products work inside general-purpose chat apps like ChatGPT and Claude, since no one knows which paradigm will win. The post weighs specialized agents (better task performance, UI control, but users bear inference costs and context fragments across products) against MCP plugins (no inference cost, access to a large installed base, but less control and a separate experience). It notes OpenAI's "Sign in with ChatGPT" hybrid as potentially the most user-friendly model if broadly available, and flags local-first on-device inference via something like the Prompt API as a possible long-term winner.