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Models side by side

MDR vs SIEM copilot: which model fits your SOC?

The short answer

These sit at opposite ends. MDR hands the queue to a provider's analysts; a SIEM copilot makes your own analysts faster and acts only when asked. Choose MDR when you lack people, and a copilot when you have people who keep up.

By The Triage Desk · AI Cyber Compare · Published 2026-10-08

Desk research from public vendor pages: vendor facts read September 2026, updated 2026-10-13. Editorial reading of what vendors publish; we did not run the products and did not interview vendors.

How do the two models divide the work?

RowMDRSIEM copilot
What you buyPeople and process from a provider, delivered on a contract, usually with the provider's tooling or access to yours.Usually a feature or add-on to a SIEM or security suite you already run.
Who decidesThe provider's analysts work the queue. The contract sets which actions they may take and which they escalate to you.Your analyst. The copilot answers when asked; it does not work the queue on its own.
Fits when
  • You have no analysts, or too few to cover nights and weekends.
  • You want a contract that names who responds, and how fast.
  • Your team prefers to own decisions on escalations rather than the whole queue.
  • Your analysts handle the queue today and want to work faster in the SIEM they know.
  • Alert volume is manageable and the goal is speed per alert, not coverage of every alert.
  • You want AI help without giving software authority to act.
Strains when
  • You want your own team to build knowledge of your environment.
  • You need to see every step of how a verdict was reached.
  • Your environment is unusual and the provider's standard process fits it poorly.
  • Alerts pile up unread; a copilot does not read them for you.
  • You have no one on shift at night.
  • Your alerts and evidence live mostly outside that SIEM.

Managed detection and response (MDR)

Work strip for Managed detection and response (MDR): Triage, provider's analysts; Investigate, provider's analysts; Respond, shared; Tune, provider's analysts; Nights and weekends, provider's analysts.TriageProvider's analystsInvestigateProvider's analystsRespondSharedTuneProvider's analystsNights and weekendsProvider's analysts

SIEM copilot

Work strip for SIEM copilot: Triage, your analysts; Investigate, shared; Respond, your analysts; Tune, shared; Nights and weekends, your analysts.TriageYour analystsInvestigateSharedRespondYour analystsTuneSharedNights and weekendsYour analysts
  • Your analysts
  • Rules you write
  • AI agent
  • Provider's analysts
  • Shared
  • Not described

Stages where they differ:

  • Triage: MDR provider's analysts, SIEM copilot your analysts
  • Investigate: MDR provider's analysts, SIEM copilot shared
  • Respond: MDR shared, SIEM copilot your analysts
  • Tune: MDR provider's analysts, SIEM copilot shared
  • Nights and weekends: MDR provider's analysts, SIEM copilot your analysts

When would you choose MDR, and when SIEM copilot?

Choose MDR if:

  • You lack analysts or a night shift.
  • You want response named in a contract.
  • You do not want to run security tooling yourself.

Choose SIEM copilot if:

  • Your analysts keep up and want speed.
  • You want decisions to stay in-house.
  • Your SIEM is where your evidence lives.

Which profiled vendors cover each model?

MDR

SIEM copilot

None of the thirteen profiled vendors covers both models in our sources.

Model definitions are general descriptions of each category. MDR providers and SIEM copilots have lighter profiles built from vendor pages read in October 2026; they are not in the fact table, fit finder vendor list or pair pages, which compare the thirteen AI SOC and SOAR products on the same 11 capabilities.

Asked often about this page

Which is better, MDR or SIEM copilot?

Neither in general. These sit at opposite ends.

Can they be combined?

Yes. A provider can cover nights while your day team uses a copilot in the SIEM. Make sure both work from the same case record.

Which profiled vendors cover both?

None of the thirteen profiled vendors covers both in our sources.

Read next

MDRHow the MDR model works.SIEM copilotHow the SIEM copilot model works.Fit finderFive questions that order the models by your answers.Which modelThe decision guide for all four models.