HEAD-TO-HEAD · FACTS ONLY
Pluto vs Prompt Security: AI endpoint control facts side by side
Short answer
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: Pluto
- 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)
What are the facts, side by side?
| Fact | Pluto | 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 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. | 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 | (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 | 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 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 | 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 | 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 | MatchesNames GitHub Copilot, Cursor and Claude Code. Source: SentinelOne: Prompt Security · Read 27 Sep 2026 |
| Decides on a tool call before it runsDiffers | 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 | 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 run | 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 | 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 blocking | Not in our sources | Not in our sources |
| Can block an agent, tool or action | Not in our sources | 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 action | Not in our sources | Not in our sources |
| Also covers SaaS, cloud or homegrown AIDiffers | Not in our sources | 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 | (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 | None in our sources |
| Price | Not published (demo request). Source: Pluto Security homepage · Read 13 Oct 2026 | Not published. Source: SentinelOne: Prompt Security · Read 27 Sep 2026 |
Where do they differ?
- On-device control: Pluto partly describes it; Prompt Security describes it.
- Browser extension: Pluto is not in our sources; Prompt Security describes it.
- Names the coding agents it covers: Pluto partly matches; Prompt Security matches.
- Decides on a tool call before it runs: Pluto partly matches; Prompt Security is not in our sources.
- Controls what goes into browser AI: Pluto is not in our sources; Prompt Security matches.
- Also covers SaaS, cloud or homegrown AI: Pluto is not in our sources; Prompt Security matches.
Choose Pluto if
- You want guardrails on coding agents without a new endpoint agent
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?
Pluto
- Pluto publishes little product detail on its own site, so this profile relies partly on a third-party report.
- No price is published.
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.