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What Rehearsals Does

Rehearsals builds AI replicas of real people, modeled from structured behavioral interviews, social media, and other 3rd party data. You put a scenario in front of hundreds of your actual customers and see what they would do, in minutes instead of weeks.
A replica is an AI representation of a specific, real individual. It encodes that person’s decision-making patterns, constraints, values, and reasoning style, rather than a demographic average. Replicas are powered by the Engram Model, our proprietary model for replicating individual human behavior.

How Rehearsals Is Different

Other tools predict customer behavior by reasoning about an “average” consumer, a general profile built from aggregate data. But real people do not act like an average. Their choices depend on their own circumstances, habits, and priorities, which is exactly what an average washes out. Rehearsals works the other way around. Instead of one generic consumer, it asks hundreds of replicas of your real customers what each of them would do, then adds up the results. You see the real range of responses, not a single averaged guess.
What sets a replica apart is that it can tell you why. Say a streaming service raises its subscription price by a few dollars a month. A synthetic persona might report that some percentage of a demographic would cancel, but not the reason. A replica reasons from a real person’s life: “My kids watch this every day, and a few dollars a month is not worth the hassle of switching.” Add up hundreds of those individual reasons and you get a realistic picture of who stays and who leaves.

Where to Go Next

How Replicas Are Built

The Engram Model, the data behind each replica, and the four-stage construction pipeline.

What Is a Simulation?

The scenario, the environment, and how a replica is interviewed.

Simulation Types & Templates

Pricing, product preference, advertising, and the templates you can start from.

Asking Good Questions

How to write neutral questions, and why framing matters even more for AI.