Is Falcon Guardian or Harmonic better for AI endpoint control?

Neither is scored on this site. Falcon Guardian describes 1 of four product control types and Harmonic 2 on the pages we read, and they differ on 11 recorded facts. Which fits depends on the AI tools people use, your devices, where the work happens and whether you block or guide; the finder checks those.

Which of the two decides on a tool call before it runs?

Falcon Guardian: Matches. Harmonic: Partly. Warn or ask: Falcon Guardian Not in our sources, Harmonic Matches.

Do Falcon Guardian or Harmonic publish prices?

Falcon Guardian: Not published. CrowdStrike's pricing page lists Falcon Go, Pro and Enterprise bundles, none of which include Falcon Guardian. Harmonic: Three named tiers (Explore, Guide, Command) with no prices; a full prompt audit log is an add-on on Guide and Command.

HEAD-TO-HEAD · FACTS ONLY

Falcon Guardian vs Harmonic: AI endpoint control facts side by side

Short answer

Falcon Guardian describes 1 of the four product control types on the pages we read and Harmonic describes 2; they differ on on-device control, browser extension and AI or MCP gateway. On decisions, Falcon Guardian decides on a tool call before it runs and Harmonic describes some control over tool calls. We do not score either; the right choice depends on the AI tools people use, your devices, your current stack and whether you block or guide.

By The Device Desk · Endpoint AI Finder · Published 2026-10-11

Desk research from public vendor pages read on 27 September and 11 October 2026. Profiles follow our published method; we did not run the products.

Vendor pages read September and October 2026 · updated 2026-10-13

Where do their controls sit?

Filled or hatched marker: Falcon Guardian
Dashed teal ring: Harmonic, described

DEV Filled marker: described on the product pages we read
DEV Hatched marker: partly described (another component, a narrower scope, or method not detailed)
DEV Dashed marker: not in our sources (it may exist; we did not find it)

The map shows where each product's own pages describe a control, or where your answers point. It is not a measure of how well a product works.

What are the facts, side by side?

CrowdStrike Falcon Guardian and Harmonic Security, from each product's own pages. Differs is computed from recorded statuses, not wording.
Fact	Falcon Guardian	Harmonic
Owner	None	None
Positioning	CrowdStrike's AI agent security product, described on 1 September 2026 as the evolution of Falcon AI Detection and Response (AIDR). It discovers shadow AI agents, connects agent activity to endpoint telemetry, governs which AI agents may run, protects prompts and sensitive data, and stops threats at runtime with containment, from endpoint to cloud and SaaS.	A data protection product for everyday AI use, sold as Explore, Guide and Command, covering browser extensions, desktop apps and CLI tools, MCP gateways and an API.
How it reaches devices	Through the Falcon sensor on supported Windows, macOS and Linux endpoints; Claude Code coverage is a JSON block in the Claude Code settings file with no agent to install, assigned through Falcon host groups. Source: CrowdStrike blog: Copilot Studio agents and Claude Code, 30 July 2026 · Read 13 Oct 2026	Rolls out through Intune, JAMF, Kandji or Group Policy. Source: Harmonic Security homepage · Read 27 Sep 2026
On-device controlDiffers	DescribedDiscovers AI agents on supported endpoints and ties prompts, skills, tool calls, MCP servers and identity to what runs next; defines which agent types may run. Source: CrowdStrike blog: Falcon Guardian, 1 September 2026 · Read 13 Oct 2026	Partly describedDeployment options include desktop apps and AI agents, rolled out through device management; the on-device component is not described in detail. Source: Harmonic Security pricing (re-read) · Read 11 Oct 2026
Browser extensionDiffers	Partly described(secondary: SACR) delivered also through browser extensions. Source: SACR (secondary): CISO guide to endpoint control and prevention, July 2026 · Read 13 Oct 2026 · secondary source	DescribedBrowser extensions are a listed surface, with block, warn or log actions. Source: Harmonic Security homepage · Read 27 Sep 2026
Network or SSE proxy	Not in our sourcesNot described on the pages we read.	Not in our sourcesNot described on the pages we read.
AI or MCP gatewayDiffers	Partly describedThe AI gateway is listed as coming soon; SACR (secondary) also lists an MCP proxy. Source: CrowdStrike: Falcon Guardian (formerly AIDR) · Read 13 Oct 2026	DescribedMCP gateways are a listed surface, and Harmonic Command governs at the MCP layer and at the tool surface. Source: Harmonic Security: Command · Read 27 Sep 2026
Names the coding agents it coversDiffers	PartlyNames Claude Code and Copilot Studio agents; Cursor, Codex and GitHub Copilot are not named on the pages we read. Source: CrowdStrike blog: Copilot Studio agents and Claude Code, 30 July 2026 · Read 13 Oct 2026	MatchesThe Guide tier adds desktop AI apps and developer tools, naming Claude Code, GitHub Copilot, ChatGPT Desktop and Microsoft 365 Copilot. Source: Harmonic Security pricing (re-read) · Read 11 Oct 2026
Decides on a tool call before it runsDiffers	MatchesChecks and blocks Claude Code prompts and tool activity as they happen, and returns allow or block before a Copilot Studio agent runs a tool. Source: CrowdStrike blog: Copilot Studio agents and Claude Code, 30 July 2026 · Read 13 Oct 2026	PartlyThe Command tier adds MCP client and server discovery, agent permissions for read, write and execute, and MCP server tool controls. Source: Harmonic Security pricing (re-read) · Read 11 Oct 2026
Controls what goes into browser AIDiffers	Not in our sources	MatchesBlock, warn or log on AI use in the browser. Source: Harmonic Security homepage · Read 27 Sep 2026
Rolls out through EDR or device management you run	MatchesThrough the Falcon sensor, if you run CrowdStrike Falcon. Source: CrowdStrike blog: Falcon Guardian, 1 September 2026 · Read 13 Oct 2026	MatchesRolls out through Intune, JAMF, Kandji or Group Policy. Source: Harmonic Security homepage · Read 27 Sep 2026
Can warn or ask instead of only blockingDiffers	Not in our sources	MatchesWarn is one of three actions, with block and log. Source: Harmonic Security homepage · Read 27 Sep 2026
Can block an agent, tool or action	MatchesAutomatic containment by blocking malicious agent behaviors. Source: CrowdStrike blog: Falcon Guardian, 1 September 2026 · Read 13 Oct 2026	MatchesBlock is one of three actions. Source: Harmonic Security homepage · Read 27 Sep 2026
Has a watch-only or simulation modeDiffers	Not in our sources	MatchesLog is one of three actions, for watching before enforcing. Source: Harmonic Security homepage · Read 27 Sep 2026
Records who or what took each actionDiffers	MatchesClaude Code events tied to a session and user in Falcon Next-Gen SIEM. Source: CrowdStrike blog: Copilot Studio agents and Claude Code, 30 July 2026 · Read 13 Oct 2026	Not in our sources
Also covers SaaS, cloud or homegrown AIDiffers	MatchesCovers agents from endpoint to cloud and SaaS, including Copilot Studio. Source: CrowdStrike: Falcon Guardian (formerly AIDR) · Read 13 Oct 2026	PartlyAn API is listed alongside device surfaces; SaaS or cloud agents are not described. Source: Harmonic Security homepage · Read 27 Sep 2026
Has a public price or tiers (vendor site or marketplace)Differs	Not in our sources	PartlyNames three tiers (Explore, Guide, Command) on its pricing page, without prices. Source: Harmonic Security: pricing · Read 27 Sep 2026
Built into	Part of the CrowdStrike Falcon platform. Source: CrowdStrike: Falcon Guardian (formerly AIDR) · Read 13 Oct 2026	None
Works with	None in our sources	None in our sources
Price	Not published. CrowdStrike's pricing page lists Falcon Go, Pro and Enterprise bundles, none of which include Falcon Guardian. Source: CrowdStrike: pricing · Read 13 Oct 2026	Three named tiers (Explore, Guide, Command) with no prices; a full prompt audit log is an add-on on Guide and Command. Source: Harmonic Security pricing (re-read) · Read 11 Oct 2026

Where do they differ?

On-device control: Falcon Guardian describes it; Harmonic partly describes it.
Browser extension: Falcon Guardian partly describes it; Harmonic describes it.
AI or MCP gateway: Falcon Guardian partly describes it; Harmonic describes it.
Names the coding agents it covers: Falcon Guardian partly matches; Harmonic matches.
Decides on a tool call before it runs: Falcon Guardian matches; Harmonic partly matches.
Controls what goes into browser AI: Falcon Guardian is not in our sources; Harmonic matches.
Can warn or ask instead of only blocking: Falcon Guardian is not in our sources; Harmonic matches.
Has a watch-only or simulation mode: Falcon Guardian is not in our sources; Harmonic matches.
Records who or what took each action: Falcon Guardian matches; Harmonic is not in our sources.
Also covers SaaS, cloud or homegrown AI: Falcon Guardian matches; Harmonic partly matches.
Has a public price or tiers (vendor site or marketplace): Falcon Guardian is not in our sources; Harmonic partly matches.

Choose Falcon Guardian if

You already run CrowdStrike Falcon and want AI agent controls in the same console
Your agents include Copilot Studio as well as Claude Code

Choose Harmonic if

Your main risk is employees pasting sensitive data into AI tools and you would rather coach than block
You manage devices with Intune, JAMF, Kandji or Group Policy

Which limits should you check?

Falcon Guardian

Needs CrowdStrike Falcon for the device path.
Claude Code is the only coding agent named on the pages we read.
The AI gateway is listed as coming soon, and no price is published.

Harmonic

Tier names only, no prices, and the full prompt audit log is an add-on.
An activity record that separates a person from an agent is not described, and prompt injection protection is listed as coming soon.

Line up Falcon Guardian and Harmonic with others Run the finder