Pure software-as-a-service (SaaS) companies are vulnerable to being replaced by foundational AI models that can replicate their functionality. A Sequoia partner suggests the defensible model is to become a services company that uses technology as a layer, focusing on implementation, strategy, and human expertise.

The biggest threat to incumbent software companies isn't a new feature, but a business model shift. AI enables outcome-based pricing, which massively favors agile newcomers as incumbents struggle to adapt their entire commercial structure away from seat-based subscriptions.

The "SaaS apocalypse" will target "beta" software—tools that make companies more similar to their competitors. Conversely, "alpha" software—platforms that allow a company to express its unique strategy and competitive advantage—will thrive as AI makes customization and differentiation easier.

The current moment is ripe for building new horizontal software giants due to three converging paradigm shifts: a move to outcome-based pricing, AI completing end-to-end tasks as the new unit of value, and a shift from structured schemas to dynamic, unstructured data models.

The business model is shifting from selling software to selling outcomes. Instead of creating a tool and inviting users, create pre-trained agents that perform valuable work. Then, invite companies to a workspace where this 'team' of AI employees is ready to start delivering value immediately.

The traditional per-seat SaaS model is becoming a "tax on productivity" in an agent-driven world. As companies buy agents to do work instead of software for humans, the model shifts. Sam Altman's comment that every company is now an API company reflects this move from user-based pricing to value-based, programmatic access.

AI doesn't kill all software; it bifurcates the market. Companies with strong moats like distribution, proprietary data, and enterprise lock-in will thrive by integrating AI. However, companies whose only advantage was their software code will be wiped out as AI makes the code itself a commodity. The moat is no longer the software.

SaaS companies are being disrupted not by better tools, but by AI that delivers the outcomes customers want. The winning strategy is to shift from selling software licenses to selling a guaranteed result, becoming an 'AI-native services business.' This changes the business model from high-margin software to a hybrid with lower but still scalable margins.

In a world where AI agents perform tasks, the value of a SaaS product is no longer its user-friendly interface but the robustness of its APIs. The core differentiator becomes the proprietary business logic, security, and data governance embedded within the API layer.