HEAD-TO-HEAD · FACTS ONLY
Neo vs Sun: AI endpoint control facts side by side
Short answer
Neo describes 1 of the four product control types on the pages we read and Sun describes 0; they differ on on-device control and browser extension. On decisions, Neo decides on a tool call before it runs and Sun 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: Sun, 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)
What are the facts, side by side?
| Fact | Neo | Sun |
|---|---|---|
| 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. | AI agent security that says it sits in the path of every AI agent across workstations, cloud and SaaS, with three capabilities: discovery, posture management that learns each agent's purpose, and runtime checks of every tool call, connection and resource draw against that purpose before it executes. |
| 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 | Not described; the site says you can get started in 5 minutes. Source: Sun Security homepage · Read 13 Oct 2026 |
| On-device controlDiffers | 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 | Partly describedCovers agents on workstations; the on-device method is not described. Source: Sun Security homepage · Read 13 Oct 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 | 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 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 | MatchesNames Claude Code, Gemini CLI, GitHub Copilot and OpenAI Codex; Cursor is not named. Source: Neo: platform · Read 13 Oct 2026 | PartlyNames Cursor and Claude Cowork; Claude Code, Codex and GitHub Copilot are not named. Source: Sun Security homepage · Read 13 Oct 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 | MatchesEvery tool call, connection and resource draw is checked against the agent's purpose before it executes. Source: Sun Security homepage · Read 13 Oct 2026 |
| Controls what goes into browser AI | Not in our sources | Not in our sources |
| 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 blockingDiffers | MatchesHold an action for verified human approval. Source: Neo: platform · Read 13 Oct 2026 | Not in our sources |
| Can block an agent, tool or actionDiffers | MatchesBlock is one of its runtime actions. Source: Neo: platform · Read 13 Oct 2026 | PartlyIts demo shows a stopped action. Source: Sun Security homepage · Read 13 Oct 2026 |
| Has a watch-only or simulation modeDiffers | MatchesAudit mode before enforcement. Source: Neo: platform · Read 13 Oct 2026 | Not in our sources |
| 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 | PartlyIts demo shows an action log. Source: Sun Security homepage · Read 13 Oct 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 | MatchesNames Copilot Studio and AWS Bedrock agents. Source: Sun Security homepage · Read 13 Oct 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 | None in our sources |
| Price | Not published (demo request). Source: Neo homepage · Read 13 Oct 2026 | Not published (demo request). Source: Sun Security homepage · Read 13 Oct 2026 |
Where do they differ?
- On-device control: Neo describes it; Sun partly describes it.
- Browser extension: Neo partly describes it; Sun is not in our sources.
- Names the coding agents it covers: Neo matches; Sun partly matches.
- Rolls out through EDR or device management you run: Neo partly matches; Sun is not in our sources.
- Can warn or ask instead of only blocking: Neo matches; Sun is not in our sources.
- Can block an agent, tool or action: Neo matches; Sun partly matches.
- Has a watch-only or simulation mode: Neo matches; Sun is not in our sources.
- Records who or what took each action: Neo matches; Sun partly matches.
- Also covers SaaS, cloud or homegrown AI: Neo partly matches; Sun 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 Sun if
- You want each agent action checked against that agent's purpose
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.
Sun
- Sun's site is a single marketing page, so most details are not described.
- How it reaches devices is not described, and no price is published.