Prefactor

Evaluate your AI Agents in real-time

by Ethan Lee, Josh Gillies, Simon Russell, Mukil Cb, Matt Doughty, Joseph Cholakyan, Ethan Lee·Developer Tools·tracked since Sep 25, 2026
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Monthly revenue–Not shared yet
Rank–Unranked
Last 30 days–Growth in MRR
Revenue per founder–7 founders

About Prefactor

Most agents pass their evals and fail in production. Prefactor is the evaluation layer that closes the gap. We score every agent run in real time, surface quality regressions and drift as they happen, and show engineering teams exactly how their agents are performing at scale. Built for the teams shipping agents to customers.

Launch traction

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579

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Questions

Who founded Prefactor?

Prefactor was founded by Ethan Lee, Josh Gillies, Simon Russell, Mukil Cb, Matt Doughty, Joseph Cholakyan, Ethan Lee.