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Align your AI agents with human judgment

Crux agents do the work of a dedicated evals team, from expert knowledge capture to eval creation and continuous agent improvement. Our platform handles the full evals lifecycle so agents improve faster while engineers and PMs get more time to build.

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See how it works

Used by high-growth companies and Fortune 500s in healthcare, cybersecurity, financial services, and other complex industries

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ISO

COMPLIANT

HIPAA

COMPLIANT

Book a demo

Capture

Judgment

From your experts

Calibrate

Evals

ExpertCrux

Custom eval suite

Improve

Ship verified PRs

PR #2,847+38 −12

Merge

PR #2,847+126 −47

Merge

Tested on replayed traces

Monitor

100% of traces

12 of 48,210 flagged

Book a demo

Capture

Judgment

From your experts

Calibrate

Evals

ExpertCrux

Custom eval suite

Improve

Ship verified PRs

PR #2,847+38 −12

Merge

PR #2,847+126 −47

Merge

Tested on replayed traces

Monitor

100% of traces

12 of 48,210 flagged

Your agents are live. What "good" looks like is still in your experts' heads

~1% of traces get a human look

1% manual review dramatically misses failures across the distribution of agent behavior

Expert judgment is hard to unlock

Evaluating agent behavior is subjective, and experts disagree

Fixes arrive late

Weeks pass between a problem showing up as tickets and escalations, and a fix shipping

From your experts' judgment to a better agent

Run continuously on 100% of production traces

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See how it works

2,481scored today

CriteriaFROM 9 EXPERT EDITS

Base answers on the chart

Only promise what your tools can doNew

Hand clinical questions to the care lead

Expert review · 38 of 50 checked

Real impact

Evals custom-built for your agents

Evaluate your agents based on what’s right for your users, not some generic benchmark

Evals custom-built for your agents

Evaluate your agents based on what’s right for your users, not some generic benchmark

Issues caught early

Catch slips before they become complaints, escalations, or churn

Issues caught early

Catch slips before they become complaints, escalations, or churn

100% of traces

Measure every production trace, not a sampled 1%

100% of traces

Measure every production trace, not a sampled 1%

From judgment to continuous improvement

Eval results automatically turn into verified, releasable improvements via PRs in your repo

From judgment to continuous improvement

Eval results automatically turn into verified, releasable improvements via PRs in your repo

Built for teams building high-stakes agents

Customer-facing

Your agent interacts with customers or customer-facing teams

Costly mistakes

A bad turn costs revenue, trust, safety, or compliance

Regulated industries

Your agent makes judgment calls in a regulated industry

Human review

You dedicate human time to reviewing agent performance

Real impact

Evals custom-built for your agents

Evaluate your agents based on what’s right for your users, not some generic benchmark

Issues caught early

Catch slips before they become complaints, escalations, or churn

100% of traces

Measure every production trace, not a sampled 1%

From judgment to continuous improvement

Eval results automatically turn into verified, releasable improvements via PRs in your repo

Built for teams building high-stakes agents

Customer-facing

Your agent interacts with customers or customer-facing teams

Costly mistakes

A bad turn costs revenue, trust, safety, or compliance

Regulated industries

Your agent makes judgment calls in a regulated industry

Human review

You dedicate human time to reviewing agent performance

Teams running agents in production

Leaders at high-growth companies and Fortune 500s on what evaluating agents looks like today

Global financial data company

“My team is drowning in chasing tickets. Once you find one example, you don't know if it's just that one or if there's 20, 40. It could be an inch deep in water or a thousand feet deep.”

Senior Director, Generative AI

Global pharmaceutical company

“Stakeholders will say yes, it's important to make sure the agent is healthy, but they don't know what that means. Nobody's writing down what we want it to do.”

Team Lead, Agent Development

Consumer learning app

“How do you notice when it goes rogue when you have so many conversations? If it escalates, we notice it. Otherwise it's rose-colored glasses.”

Head of CX

Why not build it yourself?

Book a demo

What you get

Distills your experts’ judgment, no rubric writing

Calibrated to your organization, not a generic score

Runs on 100% of production traffic, stable and efficient

Opens verified PRs directly in your repo

Built for high-stakes agents

Deep evals expertise and enterprise support

Crux

Agents that serve as your dedicated evals team

Native in your workflows

Build it in-house

Your engineers, part-time

Engineers chase experts for labels

Generic observability tooling

A text box and a dashboard

You write the rubric

What you get

Distills your experts’ judgment, no rubric writing

Calibrated to your organization, not a generic score

Runs on 100% of production traffic, stable and efficient

Opens verified PRs directly in your repo

Built for high-stakes agents

Deep evals expertise and enterprise support

Crux

Agents that serve as your dedicated evals team

Native in your workflows

Build it in-house

Your engineers, part-time

Engineers chase experts for labels

Generic observability tooling

A text box and a dashboard

You write the rubric

Built for teams that handle sensitive data

The answers your security review needs

Data privacy

Your data

Your data is not used to train models. Clear controls for retention and PII handling.

Permissions

Access control

Single sign-on and role-based access, so only the right people see your data

ISO

COMPLIANT

HIPAA

COMPLIANT

Certifications

SOC 2, ISO, and HIPAA compliant

Book a demo

Questions we hear from product and engineering leaders

If yours isn’t here, ask us during the demo

Book a demo

hello@crux-labs.ai

Prefer to pick a time? Book directly on our calendar.

Questions we hear from product and engineering leaders

If yours isn’t here, ask us during the demo

Book a demo

Our engineers say they can build this themselves. Why use Crux?

Do we need to change our stack?

Which agents does Crux work with?

Is our data secure?

How fast do we see results?

hello@crux-labs.ai

Prefer to pick a time? Book directly on our calendar.

Questions we hear from product and engineering leaders

If yours isn’t here, ask us during the demo

Book a demo

hello@crux-labs.ai

Prefer to pick a time? Book directly on our calendar.

Questions we hear from product and engineering leaders

If yours isn’t here, ask us during the demo

Book a demo

Our engineers say they can build this themselves. Why use Crux?

Do we need to change our stack?

Which agents does Crux work with?

Is our data secure?

How fast do we see results?

hello@crux-labs.ai

Prefer to pick a time? Book directly on our calendar.

See what your experts would say about every trace

Book a demo and we’ll show Crux running on an agent like yours

See what your experts would say about every trace

Book a demo and we’ll show Crux running on an agent like yours

See what your experts would say about every trace

Book a demo and we’ll show Crux running on an agent like yours

See what your experts would say about every trace

Book a demo and we’ll show Crux running on an agent like yours

See what your experts would say about every trace

Book a demo and we’ll show Crux running on an agent like yours