Is Glow or Prompt Security better for AI endpoint control?

Neither is scored on this site. Glow describes 0 of four product control types and Prompt Security 2 on the pages we read, and they differ on 10 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?

Glow: Partly. Prompt Security: Not in our sources. Warn or ask: Glow Partly, Prompt Security Not in our sources.

Do Glow or Prompt Security publish prices?

Glow: Not published (demo request). Prompt Security: Not published.

HEAD-TO-HEAD · FACTS ONLY

Glow vs Prompt Security: AI endpoint control facts side by side

Short answer

Glow describes 0 of the four product control types on the pages we read and Prompt Security describes 2; they differ on on-device control and browser extension. On decisions, Glow describes some control over tool calls and Prompt Security does not describe tool-call decisions on the pages we read. 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: Glow
Dashed teal ring: Prompt Security, 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?

Glow Security and Prompt Security (SentinelOne), from each product's own pages. Differs is computed from recorded statuses, not wording.
Fact	Glow	Prompt Security
Owner	None	SentinelOne (acquisition announced 5 August 2025; SentinelOne's blog of 3 September 2025 is titled SentinelOne Acquires Prompt Security)
Positioning	"The Endpoint AI Company": control over everything that runs on the endpoint, in three areas (Asset Intelligence, Software Control, Safe AI Adoption), plus an Anthropic integration that collects per-user Claude usage, skills, connectors and a compliance audit trail. Came out of stealth on 22 July 2026 with $180M; Tel Aviv and Palo Alto.	Prompt Security, now part of SentinelOne, inventories AI tools and code assistants, including unsanctioned shadow AI, through two local sensors, a browser extension and a dedicated AI endpoint agent, and is built into the SentinelOne Singularity Platform.
How it reaches devices	How Glow reaches devices is not stated on its homepage; its documentation site could not be read. The Anthropic integration uses one API key and needs Claude Enterprise and the Compliance API. Source: Glow Security: Anthropic integration · Read 13 Oct 2026	Two local sensors: a browser extension and a dedicated AI endpoint agent, managed from the SentinelOne Singularity Platform. Prompt Security argues that MDM or EDR integrations, which mostly run scripts periodically, are not enough. Source: Prompt Security blog: browser and endpoint sensors · Read 11 Oct 2026
On-device controlDiffers	Partly describedSoftware control and runtime prevention policies; a pre-execution hook can block an action or hold it for approval. Source: Glow Security blog: AI agents exposed developer screenshots, 29 September 2026 · Read 13 Oct 2026	DescribedA dedicated AI endpoint agent detects new AI agents, skills and connectors and applies runtime policies; it names GitHub Copilot, Cursor and Claude Code among the code assistants it inventories. Source: Prompt Security blog: browser and endpoint sensors · Read 11 Oct 2026
Browser extensionDiffers	Not in our sourcesNot described on the pages we read.	DescribedA browser extension inspects prompts, redacts sensitive data and discovers shadow AI. Source: Prompt Security blog: browser and endpoint sensors · Read 11 Oct 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 gateway	Not in our sourcesNot described on the pages we read.	Not in our sourcesNot described on the pages we read.
Names the coding agents it coversDiffers	PartlyNames Claude Code through a managed-settings bundle in its Anthropic integration. Source: Glow Security: Anthropic integration · Read 13 Oct 2026	MatchesNames GitHub Copilot, Cursor and Claude Code. Source: SentinelOne: Prompt Security · Read 27 Sep 2026
Decides on a tool call before it runsDiffers	PartlyDescribes a pre-execution hook that can block or hold an action. Source: Glow Security blog: AI agents exposed developer screenshots, 29 September 2026 · Read 13 Oct 2026	Not in our sources
Controls what goes into browser AIDiffers	Not in our sources	MatchesThe browser extension inspects prompts and redacts sensitive data. Source: Prompt Security blog: browser and endpoint sensors · Read 11 Oct 2026
Rolls out through EDR or device management you runDiffers	Not in our sources	PartlyIts own agent and extension, managed in the SentinelOne console; it does not ride on other EDR or MDM tools. Source: Prompt Security blog: browser and endpoint sensors · Read 11 Oct 2026
Can warn or ask instead of only blockingDiffers	PartlyCan hold an action for approval. Source: Glow Security blog: AI agents exposed developer screenshots, 29 September 2026 · Read 13 Oct 2026	Not in our sources
Can block an agent, tool or actionDiffers	MatchesA pre-execution hook can block an action. Source: Glow Security blog: AI agents exposed developer screenshots, 29 September 2026 · Read 13 Oct 2026	Not in our sources
Has a watch-only or simulation mode	Not in our sources	Not in our sources
Records who or what took each actionDiffers	PartlyCompliance audit trail for Claude through the Anthropic integration. Source: Glow Security: Anthropic integration · Read 13 Oct 2026	Not in our sources
Also covers SaaS, cloud or homegrown AIDiffers	PartlyCovers Claude Enterprise accounts, skills and connectors through the Anthropic integration. Source: Glow Security: Anthropic integration · Read 13 Oct 2026	MatchesCovers homegrown AI apps from testing to runtime. Source: SentinelOne: Prompt Security · Read 27 Sep 2026
Has a public price or tiers (vendor site or marketplace)	Not in our sources	Not in our sources
Built into	None	Built into the SentinelOne Singularity Platform. Source: SentinelOne: Prompt Security · Read 27 Sep 2026
Works with	None in our sources	None in our sources
Price	Not published (demo request). Source: Glow Security homepage · Read 13 Oct 2026	Not published. Source: SentinelOne: Prompt Security · Read 27 Sep 2026

Where do they differ?

On-device control: Glow partly describes it; Prompt Security describes it.
Browser extension: Glow is not in our sources; Prompt Security describes it.
Names the coding agents it covers: Glow partly matches; Prompt Security matches.
Decides on a tool call before it runs: Glow partly matches; Prompt Security is not in our sources.
Controls what goes into browser AI: Glow is not in our sources; Prompt Security matches.
Rolls out through EDR or device management you run: Glow is not in our sources; Prompt Security partly matches.
Can warn or ask instead of only blocking: Glow partly matches; Prompt Security is not in our sources.
Can block an agent, tool or action: Glow matches; Prompt Security is not in our sources.
Records who or what took each action: Glow partly matches; Prompt Security is not in our sources.
Also covers SaaS, cloud or homegrown AI: Glow partly matches; Prompt Security matches.

Choose Glow if

Your company runs Claude Enterprise and wants per-user usage and an audit trail
You want software control on the endpoint alongside AI controls

Choose Prompt Security if

You already run SentinelOne Singularity
You need an inventory of AI tools and coding assistants first

Which limits should you check?

Glow

How it reaches devices is not stated on the pages we could read.
No price is published, and the homepage figures are Glow's own statements.

Prompt Security

Two new local sensors to roll out, a browser extension and an endpoint agent, unless you already run SentinelOne.
Tool-call decisions, blocking, warning and activity records for agent actions are not described on the pages we read, and no pricing is published.

Line up Glow and Prompt Security with others Run the finder