Legacy platforms adding AI features are bottlenecked by their old architecture. Truly AI-native companies build agentic reasoning into the foundational control layer, enabling superior performance and interconnectivity between AI components, which creates a durable moat.

To defend against large model providers, AI coding startups like Cognition are moving from being "model neutral" to "agent neutral." They now integrate competing coding agents (e.g., Claude Code) into their platforms, shifting their value proposition to being the essential workflow and orchestration layer for developers.

Simply offering the latest model is no longer a competitive advantage. True value is created in the system built around the model—the system prompts, tools, and overall scaffolding. This 'harness' is what optimizes a model's performance for specific tasks and delivers a superior user experience.

While most current AI agents are just replicable instructions, a potential moat exists for tools that build truly autonomous, self-improving agents. The history and learnings of such an agent would create high switching costs, as moving to a new platform would be like training a new employee from scratch.

AI platforms using the same base model (e.g., Claude) can produce vastly different results. The key differentiator is the proprietary 'agent' layer built on top, which gives the model specific tools to interact with code (read, write, edit files). A superior agent leads to superior performance.

Navan's CEO sees the debate over which LLM is best as unimportant because the infrastructure is becoming a commodity. The real value is created in the application layer. Navan's own agentic platform, Cognition, intelligently routes tasks to different models (OpenAI, Anthropic, Google) to get the best result for the job.

The real intellectual property and performance driver for advanced AI systems like Claude Code isn't the underlying model, but the surrounding orchestration layer. This "agent harness" manages memory, tools, and context, and has become the key competitive differentiator.

An AI coding agent's performance is driven more by its "harness"—the system for prompting, tool access, and context management—than the underlying foundation model. This orchestration layer is where products create their unique value and where the most critical engineering work lies.

Creating a basic AI coding tool is easy. The defensible moat comes from building a vertically integrated platform with its own backend infrastructure like databases, user management, and integrations. This is extremely difficult for competitors to replicate, especially if they rely on third-party services like Superbase.