Prefactor
prefactor.tech
Prefactor
Prefactorprefactor.techA runtime evaluation platform that scores every production AI agent run for quality and risk.
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According to AlphaMoat, in the latest data month Prefactor (prefactor.tech) received 0 monthly visits — ranked #0 of 17,424 AI websites with traffic data, and #0 of 2,225 in General AI.

Monthly Visits
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Overall Rank (17,424)
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General AI Rank (2,225)
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Top Market
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What is Prefactor

Product Overview

Prefactor is an agent evaluation runtime that reviews every step a production AI agent takes. Each run is recorded as traces and spans, scored with evals such as LLM-as-judge and quality or cost metrics, and then enforced at runtime so a team can hold, approve or block an action before it reaches a user. SDKs are available for TypeScript and Python, with native support for frameworks such as LangChain, Vercel AI and LiveKit.

Key Features6 items
  • 01Continuous scoring of quality, drift, risk and cost for every agent run
  • 02Traces and spans for each call, tool and decision
  • 03LLM-as-judge and custom evaluation metrics
  • 04Runtime enforcement to hold, approve or block actions
  • 05PII checks built into the reliability loop
  • 06Plans billed by spans with self-hosting on Enterprise
Business Model

Every plan is the full platform and usage is billed by spans. Dev is free with 5,000 spans included, Startup costs $49 a month, and Scaleup costs $199 a month, with annual billing saving up to 20%.

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Data month: — · Visit figures are third-party traffic estimates aggregated monthly — best for scale and trends. Multiple domains of the same product are merged. See methodology.