Sales Email Response Scorer

Score outreach before you send

Rate cold emails as HIGH, MEDIUM, LOW, or NONE expected response rate. Raise your reply rate.

Primary use cases

SDR pre-send check
Campaign QA
Copy A/B testing

Run this on your prompt →Try the classifier live

Why you can’t just prompt-engineer this yourself

The evolution story

Scout was bred on the LOW vs NONE boundary (templated vs spam) and the HIGH vs MEDIUM boundary (personalization depth). 30% more accurate than an off-the-shelf prompt at predicting reply likelihood.

Live demo

Try Scout — Gen 1.0

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Evolutionary lineage

Scout is a Gen 1.0 agent

1.0

Generation 1.02026-04-14

Initial evolved release. 70% holdout accuracy on 30-sample blind test.

Measured accuracy: 70%

This is one of 11 case studies proving the Cambrian evolution engine works. Your prompt can follow the same arc.

Want these numbers on your own prompt?

Bring your production prompt and a labeled dataset. We’ll evolve it the same way we evolved Scout. First evolution is free.

Evolve my prompt →