As SaaS firms use AI to optimize operations, they feed models data on how their products are built. This creates a deflationary spiral where customers can use the same AI to build cheaper alternatives, threatening the core SaaS business model by accelerating price and profitability compression.

The rise of agentic coding is creating a "SaaSpocalypse." These agents can migrate data, learn different workflows, and handle integrations, which undermines the core moats of SaaS companies: data switching costs, workflow lock-in, and integration complexity. This makes the high gross margins of SaaS businesses a prime target for disruption.

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.

AI is making core software functionality nearly free, creating an existential crisis for traditional SaaS companies. The old model of 90%+ gross margins is disappearing. The future will be dominated by a few large AI players with lower margins, alongside a strategic shift towards monetizing high-value services.

Investor Joe Lonsdale offers a heuristic for the 'SaaSpocalypse': low-end SaaS, particularly PE-backed companies that prioritized sales over deep tech, is in trouble. However, complex software that required over $100 million in engineering to build has a significant moat and is defensible against AI-driven disruption for the foreseeable future.

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.

For over a decade, SaaS products remained relatively unchanged, allowing PE firms to acquire them and profit from high NRR. AI destroys this model. The rate of product change is now unprecedented, meaning products can't be static, introducing a technology risk that PE models are not built for.

AI is not killing B2B SaaS, but it is fundamentally changing the competitive landscape by making software easier to build. This commoditizes core features, forcing existing SaaS companies to develop unique, defensible moats beyond just code to protect themselves against a new wave of competitors who can quickly "vibe code" similar solutions.

The perception of SaaS businesses as predictable, annuity-like investments is dead. AI introduces fundamental unknowns about growth, pricing, and market structure, breaking the old valuation models based on ARR and Net Dollar Retention.