Plerion Pleri (AI security engineer) vs SentinelOne Purple AI (agentic AI security analyst)
Plerion Pleri (AI security engineer) (Plerion) and SentinelOne Purple AI (agentic AI security analyst) (SentinelOne) are both listed in the Security category of Agent Index. They share no framework tags in our dataset. Only SentinelOne Purple AI (agentic AI security analyst) is tagged for FedRAMP, GovRAMP, TX-RAMP.
| Field |  Plerion Pleri (AI security engineer) |  SentinelOne Purple AI (agentic AI security analyst) |
|---|---|---|
| Vendor | Plerion | SentinelOne |
| HQ | Australia · Australia and New Zealand | United States · North America |
| Primary category | Security | Security |
| Also listed in | Security | Security, Compliance |
| Summary | Sydney-based cloud and AI security platform with Pleri, an agent that investigates findings, checks real exploitability, raises fix PRs and Jira tickets, and follows each change through to merge. | Agentic AI security analyst in the Singularity platform that runs alert investigations to a verdict and, with Singularity Hyperautomation, triggers response within pre-approved policies; SentinelOne says Purple AI is FedRAMP High authorized. |
| Framework tags (Agent Index) | — | FedRAMP, GovRAMP, TX-RAMP |
| Frameworks (vendor-claimed) | — | FedRAMP, GovRAMP, TX-RAMP |
| FedRAMP (Marketplace, listing scope) | — | SentinelOne Singularity Platform High · FedRAMP Authorized · FR1919071020A · High · authorized 2024-09-10 |
| Capabilities / tasks | cloud security, vulnerability management, remediation, exposure management | security operations, alert triage, case investigation, threat detection, government compliance |
| Pricing (as published) | Published estimator on plerion.com/pricing: a fixed monthly Plerion bill set by combined monthly AWS/Azure/GCP spend (example shown: $100,000–$130,000 cloud bill → about $3,100–$3,700/month, USD), all capabilities and the agent included; 'Start free' option. | Purple AI pricing not published; Singularity platform tiers listed from $179.99 per endpoint/year (Complete) and $229.99 (Commercial) on sentinelone.com/pricing. |
| Pricing model | published-tiers | quote |
| Primary source | https://www.plerion.com/agents | https://www.sentinelone.com/platform/purple/ |
| Last checked | 2026-10-18 | 2026-10-18 |
| Official site | https://www.plerion.com/agents | https://www.sentinelone.com/platform/purple/ |
Side-by-side data is generated from the open dataset. “Vendor-claimed” frameworks are as marketed by each vendor and not verified by Agent Index; framework tags indicate relevance, not certification. Request current quotes from each vendor before buying. This page does not rank or score vendors. Sponsored comparisons, if any, will be labelled.
Also in this use case
Other verified listings that share a task tag or use-case group with Plerion Pleri (AI security engineer) or SentinelOne Purple AI (agentic AI security analyst). Open a pair page or the use-case table — this is not a ranking.
- 7AI agentic security platform — Boston-based agentic security platform where swarms of specialised AI agents categorise, investigate and reach a determination on every alert, escalating only what needs a person, with optional managed service (PLAID ELITE). · 7AI agentic security platform pair comparison
- Abnormal AI Security Mailbox (Abnormal AI for Government) — Autonomous agent for email security operations that triages user-reported emails, removes related malicious campaign messages across the organisation and replies to reporters; included in Abnormal AI for Government, which is FedRAMP and GovRAMP Moderate authorized. · Abnormal AI Security Mailbox (Abnormal AI for Government) pair comparison
- D3 Morpheus (agentic AI SOC platform) — Agentic SOC platform that autonomously triages, investigates and responds across the full alert lifecycle, grading every verdict by its evidence and deferring to a human when uncertain. · D3 Morpheus (agentic AI SOC platform) pair comparison
- Imperum Virtus AI SOC agents (Triage, Pilot, Email Phishing) — Amsterdam-built autonomous SOC platform whose Virtus agents triage every alert through a 7-stage pipeline, return a verdict with confidence and evidence, and hand cases to an investigation agent, with sovereign/on-prem AI options. · Imperum Virtus AI SOC agents (Triage, Pilot, Email Phishing) pair comparison
- Pega AI agents (Pega Cloud for Government) — Enterprise workflow platform whose AI agents (Coach, Knowledge Buddy, Automate, developer agents and the Blueprint design agent) run on Pega's trusted workflows; Pega Cloud for Government, including these gen AI agents, is FedRAMP High authorized.
- Prophet AI (AI SOC Analyst, Threat Hunter and Detection Engineer agents) — Agentic AI SOC platform whose agents investigate every alert end to end, respond through scoped Agent Actions autonomously or with sign-off, hunt threats and tune detections. · Prophet AI (AI SOC Analyst, Threat Hunter and Detection Engineer agents) pair comparison
- ReliaQuest GreyMatter Agentic Teammates (GreyMatter for Government) — Agentic AI security operations platform whose six persona-based Agentic Teammates investigate and triage alerts and execute approved containment actions; GreyMatter for Government is FedRAMP Authorized (Moderate). · ReliaQuest GreyMatter Agentic Teammates (GreyMatter for Government) pair comparison
- Upwind AI Agentic Pack (Choppy, Blue, Red and Green agents) — Specialised AI agents inside Upwind's runtime-first cloud security platform: Blue investigates threats to a verdict, Red proves which risks are exploitable, Green finds root-cause fixes and opens PRs, coordinated by Choppy. · Upwind AI Agentic Pack (Choppy, Blue, Red and Green agents) pair comparison
- Workiva Agent Studio (finance, audit and GRC agents) — No-code agent builder and prebuilt agents on Workiva's reporting, audit and GRC platform, used for finance tie-outs and roll-forwards and for evidence collection, control testing and remediation, with configurable review and approval steps.
Use-case comparisons
- AI SOC and security-analyst agents — 20 listings (Security operations, alert investigation and threat detection)
- US public-sector and FedRAMP AI agents — 15 listings (US government, FedRAMP and public-sector compliance or security operations)
- Cloud security (CNAPP) AI agents — 6 listings (Cloud and container security posture, exposure and remediation)
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