Musk's acquisition of Cursor has a crystal-clear business thesis: replicate Anthropic's breakout success. Cursor doesn't have its own frontier model. Anthropic, by contrast, nailed the first true "killer vertical" for LLMs—AI-native coding tools. By going all-in on that single, high-urgency use case for developers, Anthropic created an unassailable lead. In many ways, it's positioned to eventually outpace even the generalist frontier labs like OpenAI. That's the opportunity elonmusk clearly sees. But here's the deeper take: AI has already moved into its third act. Stage 1: LLM + consumer chatbots (ChatGPT-style C-end apps). Stage 2: LLM + AI coding (tools built primarily for professional developers). Stage 3: AI Agent platforms + "agent-first" applications. Only in Stage 3 will the true super-platforms emerge—companies that can largely escape dependency on a handful of frontier model providers. Why? Because model tokens will become heavily commoditized with dozens of strong suppliers, and agent workflows won't have the same non-negotiable "must-have" friction that coding tools enjoy today. Cursor, born squarely in Stage 2, is structurally vulnerable. It will almost certainly be caught, then crushed, by more ambitious players like Anthropic that are already thinking several moves ahead.