Simulate, score, and calibrate any agent.
Connect the agent you are changing.
→Run real traffic and lifelike simulations.
→Apply the same Markers to every transcript.
→Fix the prompt, tools, model, or workflow.
Route the right machine evals to humans.
→Capture the answer a human stands behind.
→Measure judge agreement on the same coordinate.
→Strengthen judges, simulations, and monitors.
Marker operated
Start without infrastructure work.
Hosted
Marker operates the full stack and handles upgrades. Start evaluating agents the same day, then move modes later without changing product.
Book DemoCustomer VPC
Keep the data plane in your account.
Your cloud
Deploy the same image set into your own VPC. Transcripts, audio, and evidence stay inside your account and your access controls.
Book DemoCustomer network
Run beside private systems and models.
On-prem
Run the data plane inside your own network, next to the private systems, telephony, and models your agents already depend on.
Book DemoZero internet egress
Operate without a phone-home path.
Air-gapped
The same images run with outbound egress removed entirely. No phone-home path, no cloud dependency, no separate build.
Book DemoAutomated alerting
A failed scenario alerts the channels your team already watches.
Regression test
Scenarios
48
Simulated Users
6
Simulations
288
Judge explanation
GPT-4o mini
The agent asked for the account postcode before revealing the billing address.
Alignment
21 disagreements are the next judge-improvement set.
AI-native, built on technical primitives.
LoudnessSilenceTalk time
InterruptionsLatencyPacing
OutcomePolicyTone
Tool callsErrorsTrace path
Every signal, same evidence
