Is Neo or Onyx better for AI endpoint control?

Neither is scored on this site. Neo describes 1 of four product control types and Onyx 3 on the pages we read, and they differ on 8 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?

Neo: Matches. Onyx: Matches. Warn or ask: Neo Matches, Onyx Matches.

Do Neo or Onyx publish prices?

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

HEAD-TO-HEAD · FACTS ONLY

Neo vs Onyx: AI endpoint control facts side by side

Short answer

Neo describes 1 of the four product control types on the pages we read and Onyx describes 3; they differ on browser extension and AI or MCP gateway. On decisions, Neo decides on a tool call before it runs and Onyx decides on a tool call before it runs. 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: Neo
Dashed teal ring: Onyx, 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?

Neo and Onyx Security, from each product's own pages. Differs is computed from recorded statuses, not wording.
Fact	Neo	Onyx
Owner	None	None
Positioning	Agentic Software Control from Neo Security, Inc. (neo.ai, not Pulumi Neo): a live inventory of agents, models, skills, MCP servers and extensions on every endpoint, and runtime control that intercepts agent actions and allows, blocks or holds them for approval. Launched 20 July 2026 with $100M from Andreessen Horowitz and Bessemer; HQ Boston.	"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.
How it reaches devices	A lightweight endpoint sensor with no kernel module, no reboot and no OS hooks; analysis stays on the device. OS support is not listed on the pages we read; SACR (secondary) says it needs no MDM. Source: Neo: platform · Read 13 Oct 2026	Endpoint agents, browser extensions, APIs and gateways. Source: Onyx Security: AI security platform · Read 27 Sep 2026
On-device control	DescribedA live inventory of agents, models, skills, MCP servers and extensions on every endpoint, with runtime control that intercepts agent actions. Source: Neo homepage · Read 13 Oct 2026	DescribedEndpoint agents cover coding assistants and desktop AI agents. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Browser extensionDiffers	Partly described(secondary: SACR) user-mode endpoint and browser security. Source: SACR (secondary): CISO guide to endpoint control and prevention, July 2026 · Read 13 Oct 2026 · secondary source	DescribedBrowser extensions cover browser AI. Source: Onyx Security: AI security platform · 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	Not in our sourcesNot described on the pages we read.	DescribedGateways and APIs inspect traffic inline. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Names the coding agents it coversDiffers	MatchesNames Claude Code, Gemini CLI, GitHub Copilot and OpenAI Codex; Cursor is not named. Source: Neo: platform · Read 13 Oct 2026	PartlyCovers coding assistants; specific tools are not named on the pages we read. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Decides on a tool call before it runs	MatchesIntercepts agent actions at the endpoint and allows, blocks or holds them for approval. Source: Neo homepage · Read 13 Oct 2026	MatchesInspects every prompt, tool call and model response inline. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Controls what goes into browser AIDiffers	Not in our sources	MatchesCan mask data in browser AI as well as block it. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Rolls out through EDR or device management you runDiffers	PartlyIts own lightweight sensor rather than a rollout through existing EDR or MDM. Source: Neo: platform · Read 13 Oct 2026	Not in our sources
Can warn or ask instead of only blocking	MatchesHold an action for verified human approval. Source: Neo: platform · Read 13 Oct 2026	MatchesFive actions: alert, block, mask, steer or ask. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Can block an agent, tool or action	MatchesBlock is one of its runtime actions. Source: Neo: platform · Read 13 Oct 2026	MatchesBlock is one of five actions. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Has a watch-only or simulation modeDiffers	MatchesAudit mode before enforcement. Source: Neo: platform · Read 13 Oct 2026	PartlyAlert is one of five actions; a simulation mode is not described. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Records who or what took each actionDiffers	MatchesEvery action tied to the human or agent that caused it, in an immutable audit chain. Source: Neo homepage · Read 13 Oct 2026	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
Also covers SaaS, cloud or homegrown AIDiffers	PartlyNames SaaS and desktop AI such as Slack AI, Notion AI, Salesforce Agentforce and ChatGPT Desktop. Source: Neo: platform · Read 13 Oct 2026	MatchesCloud workloads and MCP servers as well as devices. Source: Onyx Security: AI security platform · 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	None
Works with	None in our sources	Lists CrowdStrike among its integrations. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Price	Not published (demo request). Source: Neo homepage · Read 13 Oct 2026	Not published. Source: Onyx Security homepage · Read 27 Sep 2026

Where do they differ?

Browser extension: Neo partly describes it; Onyx describes it.
AI or MCP gateway: Neo is not in our sources; Onyx describes it.
Names the coding agents it covers: Neo matches; Onyx partly matches.
Controls what goes into browser AI: Neo is not in our sources; Onyx matches.
Rolls out through EDR or device management you run: Neo partly matches; Onyx is not in our sources.
Has a watch-only or simulation mode: Neo matches; Onyx partly matches.
Records who or what took each action: Neo matches; Onyx partly matches.
Also covers SaaS, cloud or homegrown AI: Neo partly matches; Onyx matches.

Choose Neo if

You want to hold agent actions for human approval on the device
You want an audit mode before enforcing rules

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

Which limits should you check?

Neo

Uses its own sensor rather than the EDR or MDM you run, and OS support is not listed on the pages we read.
No price is published.

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.

Line up Neo and Onyx with others Run the finder