By creating dense embeddings for every transaction, Stripe's model identifies subtle patterns of card testing (e.g., tiny, repetitive charges) hidden within high-volume merchants' traffic. These attacks are invisible to traditional ML but appear as distinct clusters to the foundation model, boosting detection on large users from 59% to 97%.
Stripe data shows the median top AI company operates in 55 countries by its first year, double the rate of SaaS companies from three years prior. This borderless nature from day one requires financial infrastructure that can immediately support global payment methods and compliance.
In regulated industries, AI's value isn't perfect breach detection but efficiently filtering millions of calls to identify a small, ambiguous subset needing human review. This shifts the goal from flawless accuracy to dramatically improving the efficiency and focus of human compliance officers.
Many AI startups are "wrappers" whose service cost is tied to an upstream LLM. Since LLM prices fluctuate, these startups risk underwater unit economics. Stripe's token billing API allows them to track and price their service based on real-time inference costs, protecting their margins from volatility.
Rather than building one deep, complex decision tree that would rely on increasingly smaller data subsets, MDT's model uses an ensemble method. It combines a 'forest' of many shallow trees, each with only two to five questions, to maintain statistical robustness while capturing complexity.
Instead of opaque 'black box' algorithms, MDT uses decision trees that allow their team to see and understand the logic behind every trade. This transparency is crucial for validating the model's decisions and identifying when a factor's effectiveness is decaying over time.
While individual AI companies see slightly lower retention than SaaS, Stripe's data reveals customers often churn from one provider directly to a competitor, and sometimes switch back. This indicates the problem being solved is highly valued, and the churn reflects a rapidly evolving, competitive market, not a lack of product-market fit for the category itself.
To enable agentic e-commerce while mitigating risk, major card networks are exploring how to issue credit cards directly to AI agents. These cards would have built-in limitations, such as spending caps (e.g., $200), allowing agents to execute purchases autonomously within safe financial guardrails.
The enduring moat in the AI stack lies in what is hardest to replicate. Since building foundation models is significantly more difficult than building applications on top of them, the model layer is inherently more defensible and will naturally capture more value over time.
Marketing analytics firm Alembic uses spiking neural networks, a digital twin of the human brain, for attribution. Unlike predictive models needing vast historical data, these networks can identify the impact of a rare event (like the Olympics) by detecting pattern changes in real-time, similar to how a child learns "dog" after seeing one once.
Stripe intentionally designed its Agentic Commerce Protocol (ACP) to be provider-agnostic, working with any payments processor and any AI agent. This strategic decision to build an open standard, rather than a proprietary product, aims to grow the entire agentic commerce ecosystem instead of creating a walled garden.