Is Onyx or Pluto better for AI endpoint control?

Neither is scored on this site. Onyx describes 3 of four product control types and Pluto 0 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?

Onyx: Matches. Pluto: Partly. Warn or ask: Onyx Matches, Pluto Not in our sources.

Do Onyx or Pluto publish prices?

Onyx: Not published. Pluto: Not published (demo request).

HEAD-TO-HEAD · FACTS ONLY

Onyx vs Pluto: AI endpoint control facts side by side

Short answer

Onyx describes 3 of the four product control types on the pages we read and Pluto describes 0; they differ on on-device control, browser extension and AI or MCP gateway. On decisions, Onyx decides on a tool call before it runs and Pluto 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: Onyx
Dashed teal ring: Pluto, 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?

Onyx Security and Pluto Security, from each product's own pages. Differs is computed from recorded statuses, not wording.
Fact	Onyx	Pluto
Owner	None	None
Positioning	"The Secure AI Control Plane for the Agentic Era": inline inspection of prompts, tool calls and model responses across browser AI, coding assistants, desktop AI agents, cloud workloads and MCP servers. Based in Tel Aviv and New York.	"The first workspace security platform for the AI era": visibility, risk understanding and real-time guardrails for AI builders, developer tools and business workspaces. Founding team from Unit 8200, Microsoft and Palo Alto Networks; part of AWS, CrowdStrike and NVIDIA accelerators. Publishes research on Claude Code hooks, exposed MCP servers and Open VSX malware.
How it reaches devices	Endpoint agents, browser extensions, APIs and gateways. Source: Onyx Security: AI security platform · Read 27 Sep 2026	(secondary: SACR) Agentless, through API integrations and existing CrowdStrike, Defender and MDM infrastructure. Pluto's own site has no product or documentation page describing rollout. Source: SACR (secondary): CISO guide to endpoint control and prevention, July 2026 · Read 13 Oct 2026 · secondary source
On-device controlDiffers	DescribedEndpoint agents cover coding assistants and desktop AI agents. Source: Onyx Security: AI security platform · Read 27 Sep 2026	Partly described(secondary: SACR) inline hook configuration on coding agents for runtime observability and enforcement. Source: SACR (secondary): CISO guide to endpoint control and prevention, July 2026 · Read 13 Oct 2026 · secondary source
Browser extensionDiffers	DescribedBrowser extensions cover browser AI. Source: Onyx Security: AI security platform · Read 27 Sep 2026	Not in our sourcesNot described on the pages we read.
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	DescribedGateways and APIs inspect traffic inline. Source: Onyx Security: AI security platform · Read 27 Sep 2026	Not in our sourcesNot described on the pages we read.
Names the coding agents it covers	PartlyCovers coding assistants; specific tools are not named on the pages we read. Source: Onyx Security: AI security platform · Read 27 Sep 2026	PartlyPluto's research covers Claude Code; SACR (secondary) says it governs tools such as ChatGPT, Claude and Copilot. Source: SACR (secondary): CISO guide to endpoint control and prevention, July 2026 · Read 13 Oct 2026 · secondary source
Decides on a tool call before it runsDiffers	MatchesInspects every prompt, tool call and model response inline. Source: Onyx Security: AI security platform · Read 27 Sep 2026	Partly(secondary: SACR) inline hooks on coding agents for runtime enforcement. Source: SACR (secondary): CISO guide to endpoint control and prevention, July 2026 · Read 13 Oct 2026 · secondary source
Controls what goes into browser AIDiffers	MatchesCan mask data in browser AI as well as block it. Source: Onyx Security: AI security platform · Read 27 Sep 2026	Not in our sources
Rolls out through EDR or device management you runDiffers	Not in our sources	Partly(secondary: SACR) deploys through existing CrowdStrike, Defender and MDM infrastructure. Source: SACR (secondary): CISO guide to endpoint control and prevention, July 2026 · Read 13 Oct 2026 · secondary source
Can warn or ask instead of only blockingDiffers	MatchesFive actions: alert, block, mask, steer or ask. Source: Onyx Security: AI security platform · Read 27 Sep 2026	Not in our sources
Can block an agent, tool or actionDiffers	MatchesBlock is one of five actions. Source: Onyx Security: AI security platform · Read 27 Sep 2026	Not in our sources
Has a watch-only or simulation modeDiffers	PartlyAlert is one of five actions; a simulation mode is not described. Source: Onyx Security: AI security platform · Read 27 Sep 2026	Not in our sources
Records who or what took each actionDiffers	PartlyIntegrates with Okta, Entra and Splunk; separating a person from an agent is not described. Source: Onyx Security: AI security platform · Read 27 Sep 2026	Not in our sources
Also covers SaaS, cloud or homegrown AIDiffers	MatchesCloud workloads and MCP servers as well as devices. Source: Onyx Security: AI security platform · Read 27 Sep 2026	Not in our sources
Has a public price or tiers (vendor site or marketplace)	Not in our sources	Not in our sources
Built into	None	None
Works with	Lists CrowdStrike among its integrations. Source: Onyx Security: AI security platform · Read 27 Sep 2026	(secondary: SACR) deploys through existing CrowdStrike, Defender and MDM infrastructure. (secondary: SACR) deploys through existing CrowdStrike, Defender and MDM infrastructure. Source: SACR (secondary): CISO guide to endpoint control and prevention, July 2026 · Read 13 Oct 2026 · secondary source
Price	Not published. Source: Onyx Security homepage · Read 27 Sep 2026	Not published (demo request). Source: Pluto Security homepage · Read 13 Oct 2026

Where do they differ?

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

Choose Onyx if

You want masking or steering rather than only allow or block
AI use spans the browser, desktop apps, coding tools and cloud workloads

Choose Pluto if

You want guardrails on coding agents without a new endpoint agent

Which limits should you check?

Onyx

Uses its own endpoint agents and browser extensions, so there is something new to roll out to devices.
No pricing published, and specific coding agents are not named on the pages we read.

Pluto

Pluto publishes little product detail on its own site, so this profile relies partly on a third-party report.
No price is published.

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