The foundation model layer locked in this quarter—[[c:abd180a8-3537-41da-8f63-6cfbd60273f8|OpenAI]] and [[c:e691a345-97b7-484b-b7a7-240ed04c4078|Anthropic]] raised $140B combined, effectively closing the funding window for new entrants—while the developer tooling layer pivoted from competing on inference to shipping orchestration, observability, and hardened execution environments on top of stabilized APIs. [[c:1024c652-f025-4947-a160-c6aded1c08b8|Replit]]'s $400M raise at $9B (triple its valuation in six months) validates demand for AI-native IDEs that collapse the tool chain into unified workspaces. Meanwhile, reliability cracks appeared: [[c:933c4825-516c-4f08-8121-43f14bf4df2e|GitHub]]'s availability dropped to ~90% under AI agent load, and vertical integration accelerated as OpenAI acquired Astral to control Python tooling end-to-end. The strategic shift is clear: capital concentration at the model layer means the next wave of value creation happens in orchestration, protocol interoperability, and agent-native infrastructure—where switching costs are low and reliability is the new moat.