Garry Tan states that in a world where AI can replicate software quickly, traditional technical moats are eroding. The most durable competitive advantage is the trust a startup builds with its customers. An enterprise user who depends on a product is very hard to displace.

When asked if AI commoditizes software, Bravo argues that durable moats aren't just code, which can be replicated. They are the deep understanding of customer processes and the ability to service them. This involves re-engineering organizations, not just deploying a product.

As AI makes the software itself easier to build and replicate, the durable value of a SaaS company is no longer the code. Instead, the moat lies in the customer relationship, the proprietary data, the system of record it represents, and the deep understanding of user workflows.

The long-held belief that a complex codebase provides a durable competitive advantage is becoming obsolete due to AI. As software becomes easier to replicate, defensibility shifts away from the technology itself and back toward classic business moats like network effects, brand reputation, and deep industry integration.

Established SaaS companies can defend against AI disruption by leaning into their role as secure, compliant systems of record. While AI can replicate features, it cannot easily replace the years of trust, security protocols, and enterprise-grade support that large companies pay for. Their value shifts from UI to being a trusted database.

Investor Mitchell Green argues that the fear of AI "vibe coding" away SaaS businesses is overblown. Incumbents like Workday spent decades building trust and deep enterprise integrations, a moat that can't be easily replicated with code alone, regardless of AI's power.

The "SaaSpocalypse" narrative misses a key reason large enterprises buy from vendors like Salesforce. It's not just about features, but accountability—like hiring McKinsey, it provides "air cover" and "a throat to choke." This institutional trust is a powerful moat against nascent, AI-generated tools.

With AI commoditizing code creation, the sustainable value for software companies shifts. Customers pay for reliability, support, compliance, and security patches—the 'never ending maintenance commitment'—which becomes the key differentiator when anyone can build an initial app quickly.

As AI makes it possible to replicate any SaaS application's features within days, the defensibility of a product no longer lies in its engineering complexity. The real, enduring moat is the network effect, which AI cannot trivially reproduce.