Layer2C — AI Infrastructure Vendor Assessments

Layer2C is an independent AI infrastructure assessment resource from The CTO Advisor LLC. It evaluates AI infrastructure vendors using the 4+1 Layer AI Infrastructure Model across compute and network fabric, data storage and governance, context management and retrieval, data movement and pipelines, infrastructure orchestration, application runtime and execution, agentic infrastructure and the reasoning plane, and the AI application layer. Each component is scored for portability using the Decision Authority Placement Model (DAPM): Retained, Delegated, or Ceded. Each layer also carries a decision-authority reading: who makes the runtime tradeoff, and whether you can see it and override it.

Full plain-text data: llms.txt (index) and llms-full.txt (complete assessments). Overview: What Is Layer 2C? — Methodology — Cross-vendor comparison