Compare · Field Guide

Compare Prefactor

Find the right tool for your challenge. Pick the problem you are facing and see where Prefactor fits, and where others stop short.

Security · observability · governance · agent platforms — every comparison from an agent evaluation point of view

Where Prefactor sits in the agentic stackthe stack
Different tools operate at different layers. Prefactor is the evaluation and optimization layer on top of orchestration and observability.
Application layer
Your product, internal tools, customer-facing agents
Agent evaluation
Prefactor: watches every run, evaluates the outcome, catches drift, holds a risky action before it acts
Infrastructure
Cloud, compute, model APIs, vector stores
§01 / PICK YOUR PROBLEMstart here: the problem, not the product
Start with the problem

What problem are you solving?

Click a challenge to see how Prefactor compares, and which deep dives to read next.

Agents drift from what they were doing
Behaviour shifts after a model or prompt change, and nobody notices
You cannot show whether the agent did its job
Someone asks for evidence of what an agent did, and you cannot produce it
You cannot tell if the outputs are any good
Agents finish tasks, but nobody scores the result
Agent costs climb with no per-agent breakdown
Spend rises and you cannot attribute it per agent, per task, per outcome
Agents you cannot see, and cannot score
Teams deploy agents you did not know were running
Policies that never act at runtime
You have rules on paper, but nothing checks a run against them

Prefactor

Scope scored on every run, with a hold before it acts
  • Score each run against the scope you defined for that agent
  • Catch behaviour that drifts from its baseline after a change
  • Hold or escalate an out-of-scope action for review before it completes

Prefactor

An auditable record for every run
  • A full record of every action, decision, and outcome per agent
  • Evidence mapped to SOC 2, ISO 27001, and the EU AI Act
  • A tamper-evident log with chain-of-custody integrity

Prefactor

A quality score on every run
  • Automated scoring of each run against the criteria you set
  • Thresholds that trigger review or rollback when a run falls short
  • A composite score combining quality, cost, and scope signals

Prefactor

Cost attributed per agent and task
  • Per-agent, per-task cost attribution as runs happen
  • Cost-to-outcome ratios that flag spend out of line with the result
  • Budgets that pause an agent before an overrun

Prefactor

One record of every agent
  • A central record of every agent across the organisation
  • Lifecycle states from registration through retirement
  • Approval gates before an agent reaches production

Prefactor

Rules that run on every action
  • The activity schema you define is checked on every run
  • A breach can hold the action, escalate it, or block it before it completes
  • Exceptions route to the right people for review
§02 / THE MARKETscope: four segments, one evaluation layer
Prefactor vs the market

Not a security tool. Not a tracing dashboard. Not another framework.

Prefactor is the agent evaluation, observability and optimisation platform. Here is how it differs from each segment.

vs Security Platforms

Security platforms defend against threats: prompt injection, data exfiltration, adversarial attacks. Prefactor knows whether agents are doing their job, staying in scope, and delivering a result worth the cost. Security answers whether it is safe. Prefactor answers whether it is working.

vs Observability

Observability tools record what happened: traces, logs, metrics, dashboards. Prefactor evaluates whether the run did its job, tells you what to fix, and can hold a risky action before it reaches a user. Tracing is read-only; evaluation acts on what it finds.

vs Governance Platforms

Governance documentation platforms catalogue policies and produce audit packs. Prefactor checks every run against the activity schema you define, and a breach can hold, escalate, or block the action inline.

vs Agent Platforms

Agent platforms build and run agents: orchestration, tool use, memory, deployment. Prefactor is framework-agnostic evaluation that works across all of them. Build with any framework and evaluate with Prefactor, with no platform lock-in.

§03 / ALL COMPARISONSbrowse: side-by-side, tool by tool
Browse all comparisons

Side-by-side breakdowns with every tool in the space.

Each one is a reviewed deep dive: what the other tool is for, what Prefactor adds, and when you would run both.

See how every agent performs, and make it better

Prefactor helps teams observe, evaluate, and improve their AI agents in production, across every framework and provider.