Cambrian LabEvolve my prompt
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Species: Closer · Gen 1.0

Call Outcome Classifier

Log every call correctly

Classify customer service calls as RESOLVED, ESCALATED, REQUIRES_CALLBACK, UNRESOLVED, or ABANDONED. Power your CRM with ground truth.

Primary use cases
  • Contact center QA
  • Sales call logging
  • Customer success metrics
Run this on your prompt →Try the classifier live
Why you can’t just prompt-engineer this yourself

The evolution story

Closer learned the distinction between ESCALATED (handoff now) and REQUIRES_CALLBACK (same team, later) — the single most common error humans make in call logging. 29% more accurate than an off-the-shelf prompt.

Live demo

Try Closer — Gen 1.0

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Evolutionary lineage

Closer is a Gen 1.0 agent

1.0
Generation 1.02026-04-13

Initial evolved release. 79% holdout accuracy on 38-sample blind test.

Measured accuracy: 79%

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 Closer. First evolution is free.

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