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Head to head · 2026

Corelight vs Knostic

Pricing, free plans, ratings, features, pros and cons, side by side. Where one comes out ahead, we mark it.

Corelight

Corelight turns network and cloud traffic into structured evidence that security teams use to hunt threats…

4.3Not listed

Visit Corelight (opens Corelight in a new tab)

Knostic

Need-to-know access control for enterprise AI assistants that stops LLMs from oversharing sensitive data

4.0Not listed

Visit Knostic (opens Knostic in a new tab)

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

  • Lower starting price

    Not comparable

    Not comparable: Corelight does not list a price

  • Free plan

    Tie

    Neither has one

  • Higher rating

    Corelight

    4.3 against 4.0

  • Same job?

    Yes

    Both are Security & Compliance AI tools

Side by side

Compared onCorelightKnostic
Our rating4.3Better4.0
Starts atNot listedNot listed
Free planNoNo
CategorySecurity & Compliance AISecurity & Compliance AI
PlansSee pricingSee pricing
Key features
  • Zeek-based network traffic analysis extended with proprietary machine learning
  • Structured, searchable evidence output instead of raw packet captures
  • Cloud sensor coverage alongside on-premises network monitoring
  • Integration with existing SIEM and XDR security stacks
  • Threat-hunting workflows built around historical evidence retention
  • Need-to-know access policies applied at AI request time
  • Works across Microsoft Copilot, Glean, Gemini, and other enterprise AI assistants
  • Audit logs for AI-system data access
  • Knowledge-layer policy engine independent of document permissions alone
  • Governance dashboards for security and compliance teams
Pros
  • Built on Zeek, a mature, widely trusted open-source foundation with 25+ years behind it
  • Founders include the original creators of the underlying open-source project
  • Marketplace listings on AWS and CrowdStrike simplify enterprise procurement
  • Addresses a specific, underserved risk, LLM oversharing, rather than general AI security
  • Award recognition from both RSA and Black Hat in 2024 signals credibility in the security community
  • Works across multiple enterprise AI assistants rather than locking into one vendor
Cons
  • No public pricing, quotes vary by deployment size and knowledge level required
  • Downstream SIEM ingestion costs can add up on top of the Corelight subscription itself
  • Built for security operations teams, not accessible to non-specialist users
  • Enterprise-only pricing (reportedly around $50,000/year) puts it out of reach for smaller organizations
  • Founded in 2023, so long-term efficacy data is still limited
  • Effectiveness depends on how well existing data-classification policies are set up beforehand
CompanyCorelight, founded 2016Knostic, founded 2023

Prices come from each vendor's pricing page, last checked 20260801. Check the vendor before you buy.

FAQ

Questions people ask

Is Corelight better than Knostic?

In our reviews Corelight scores 4.3 and Knostic scores 4.0. The better pick depends on the job. Corelight: Corelight turns network and cloud traffic into structured evidence that security teams use to hunt threats faster than raw packet capture allows. Knostic: Need-to-know access control for enterprise AI assistants that stops LLMs from oversharing sensitive data.

Which is cheaper, Corelight or Knostic?

Corelight: see pricing. Knostic: see pricing.

Do Corelight and Knostic have free plans?

Neither lists a free plan.

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