The Truth About The AI Bubble
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AI economy stabilized with model layer companies, application layer companies, and infrastructure layer companies. Everyone is positioned to make a lot of money. There's a relative playbook for building AI-native companies on top of models. Previously, pivoting to startup ideas felt easier because waiting a few months often brought big announcements enabling new ideas. Finding ideas is returning to normal levels of difficulty.
Most surprising things seen in 2025. Changing of the guard in preferred LLM at YC during winter '26 batch.
Wrapped up winter '26 selection cycle. Asked founders: tech stack and model of choice. OpenAI was clear winner in previous batches (90+% initially), but declining. In this batch, Anthropic topped OpenAI.
Anthropic hovered at 20-25% through 2024 and early 2025, then surged in last 3-6 months to over 52%. Reasons: wins in vibe coding tools and coding agents, a large value-creating problem space. Anthropic models perform best, intentionally optimized as northstar per Tom Brown conversation.
Most use cases not coding, but bleedthrough effect from personal coding familiarity with Claude Opus or Sonnet influences application choice.
Gemini climbed from single-digit (2-3%) last year to 23% in winter '26. Impressed with Gemini 3.0 quality. Model personalities: OpenAI (black cat energy), Anthropic (happy golden retriever), Gemini (in between). One host switched to Gemini as go-to for better reasoning, replaces Google searches via grounding API and Google index for real-time accurate info (better than Perplexity).
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