Factual comparison

SUPERWISE Sentinel vs Harmonic Security

A scope-by-scope comparison based on public product documentation, with unconfirmed capabilities marked Not verified.

Reviewed · Update owner: Jason Metzner

Verdict

Harmonic Security fits organizations that want broad workforce AI coverage across browser AI, desktop apps, IDEs, CLIs, local models, and MCP servers, with coaching, warnings, and redirects at the point of use. SUPERWISE® Sentinel fits teams that want a focused AI gateway for application traffic or a supported Windows setup, with documented identifier replacement and a public demo.

Verdict checked against [H1] [H3] [S2] [S3] [S4] [S6].

Feature matrix

This matrix was reviewed on 2026-10-07. Employee endpoint coverage and application gateway coverage are separate rows because they protect different traffic.

CapabilitySUPERWISE SentinelHarmonic Security
Employee endpoint useWindows deployment is documented for requests routed through Sentinel. [S2] Read 2026-10-07Documents browser and endpoint coverage for web AI, desktop apps, IDEs, CLIs, local models, and direct inference calls. [H1] Read 2026-10-07 [H2] Read 2026-10-07
Application gateway useThe CLI proxy provides an AI gateway endpoint for application traffic. [S3] Read 2026-10-07Harmonic's agreement lists API components and telemetry integrations, but a general-purpose application model gateway was not verified. [H5] Read 2026-10-07
PII and secret handlingSentinel replaces identifiers such as email addresses, phone numbers, credit card numbers, and API keys before a prompt leaves. [S4] Read 2026-10-07 [S5] Read 2026-10-07Documents context-aware sensitive-data detection and inline warn, justify, redirect, or block actions. A public exhaustive entity list was not verified. [H3] Read 2026-10-07
Shadow-AI discoveryNot verified.Documents inventory and risk profiles across more than 1,000 AI applications, including embedded AI. [H4] Read 2026-10-07
MCP coverageNot verified.Documents MCP client and server discovery, tool-call visibility, and read, write, and action permissions. [H1] Read 2026-10-07 [H6] Read 2026-10-07
Audit evidenceSentinel documents gateway activity records. Public retention and immutability commitments were not verified. [S1] Read 2026-10-07Documents AI interaction visibility and MCP audit trails. Public field-level completeness, retention, and immutability commitments were not verified. [H4] Read 2026-10-07 [H6] Read 2026-10-07
Pricing visibilityPublished: Solo $10, Pro $25, Business $50 a month, 30 days free; Enterprise by quote. See pricing.A Pricing navigation item is public, but a numeric platform price was not verified on the reviewed pages. [H7] Read 2026-10-07
Entry pathPublic interactive demo. [S6] Read 2026-10-07Personalized 30-minute demo. Trial terms exist, but public production-trial availability was not verified. [H7] Read 2026-10-07 [H5] Read 2026-10-07

“Not verified” means the reviewed public vendor sources did not confirm the capability. It does not establish that the capability is absent from a private offer or later release.

SUPERWISE Sentinel is a focused AI gateway for requests routed from supported employee and application setups. Harmonic Security documents broad workforce coverage through a browser extension, endpoint agent, MCP gateway, and telemetry integrations. Harmonic is the broader employee AI governance product; Sentinel is the narrower gateway choice. For keeping customer data out of ChatGPT from a Windows PC, see the guide, Stop customer data reaching ChatGPT from a Windows PC.

Sentinel replaces email addresses, phone numbers, Social Security numbers in the 123-45-6789 format, credit card numbers, IBANs, IP and MAC addresses, full-length OpenAI keys, and AWS secret keys when labeled. Bank account numbers, tax IDs and EINs, national IDs, VINs, dates of birth, and medical record numbers are replaced only in the labeled formats the gateway recognizes. The admin chooses whether Sentinel redacts or blocks, and sets the replacement text.

When Harmonic Security is the better fit

  • You need discovery and controls across browsers, desktop AI, IDEs, CLIs, local models, and MCP servers. [H1] Read 2026-10-07 [H2] Read 2026-10-07
  • You need contextual employee coaching, warnings, justification, redirect, or blocking at the point of use. [H3] Read 2026-10-07
  • You need shadow-AI inventory, risk profiles, usage intelligence, and MCP action governance in one platform. [H1] Read 2026-10-07 [H4] Read 2026-10-07

When Sentinel fits

  • You need a focused application gateway or supported Windows path with documented data replacement. [S2] Read 2026-10-07 [S3] Read 2026-10-07
  • You need exact public documentation for Sentinel replacement coverage. Sentinel replaces identifiers such as email addresses, phone numbers, credit card numbers, and API keys before a prompt leaves. [S4] Read 2026-10-07 [S5] Read 2026-10-07
  • You want a public interactive demo as the first evaluation step. [S6] Read 2026-10-07

Try the demo and read Where does the data go when someone uses AI?.

Questions about Harmonic Security and Sentinel

Who is Harmonic Security a better fit for, and who is Sentinel a better fit for?

Harmonic Security fits organizations that want broad workforce AI coverage across browser AI, desktop apps, IDEs, CLIs, local models, and MCP servers, with coaching, warnings, and redirects at the point of use. Sentinel fits teams that want a focused AI gateway for application traffic or a supported Windows setup, with documented identifier replacement and a public demo.

What does Harmonic Security cover that Sentinel does not document?

Harmonic documents inventory and risk profiles across more than 1,000 AI applications, MCP client and server discovery, and contextual coaching, warn, justify, redirect, or block actions. Sentinel does not document Harmonic's breadth of browser, endpoint, local-model, embedded-SaaS, and MCP discovery, or contextual coaching.

What does Sentinel cover that Harmonic Security does not document?

Sentinel replaces identifiers such as email addresses, phone numbers, credit card numbers, and API keys before a prompt leaves. A public exhaustive Harmonic entity list was not verified.

How do Sentinel and Harmonic Security compare on price and getting started?

Published: Solo $10, Pro $25, Business $50 a month, 30 days free; Enterprise by quote. Sentinel starts with a public interactive demo. A numeric Harmonic platform price was not verified on the reviewed pages, and its entry path is a personalized 30-minute demo.

Limitations and boundaries

  • Sentinel does not document Harmonic's breadth of browser, endpoint, local-model, embedded-SaaS, and MCP discovery.
  • Sentinel does not document contextual coaching, application risk scoring, or business-use classification.
  • Published: Solo $10, Pro $25, Business $50 a month, 30 days free; Enterprise by quote. See pricing.

Sources

Sources were read on 2026-10-07, and the sources the verdict cites were read again on 2026-10-10. Competitor claims use primary vendor documentation.

  1. [S1] SUPERWISE docs: Getting started
  2. [S2] SUPERWISE docs: Sentinel for Windows
  3. [S3] SUPERWISE docs: Sentinel CLI proxy
  4. [S4] SUPERWISE docs: PII redaction
  5. [S5] SUPERWISE docs: Secret and credential detection
  6. [S6] SUPERWISE Sentinel demo
  7. [H1] Harmonic Security: Endpoint AI security
  8. [H2] Harmonic Security: Harmonic Explore
  9. [H3] Harmonic Security: Browser-based GenAI security
  10. [H4] Harmonic Security: Shadow AI detection
  11. [H5] Harmonic Security: End user license agreement
  12. [H6] Harmonic Security: Technology companies
  13. [H7] Harmonic Security: Map your AI usage