SentinelOne Purple AI
The agentic security analyst that reasons, investigates, and decides at machine speed
Overview
Purple AI stands out because it isn't a bolt-on chatbot, it's deeply wired into SentinelOne's Singularity telemetry, which means its investigations draw on real endpoint, identity, and cloud data rather than generic threat intelligence. The multi-model approach (blending Claude, GPT, and SentinelOne's own models) is a pragmatic way to get strong reasoning without betting the whole product on one vendor's model. For SOC teams already on SentinelOne, it's a genuinely useful force multiplier for alert triage and investigation documentation.
The catch is that Purple AI isn't sold on its own, you have to be a SentinelOne Singularity customer, and full pricing (including the newer "Singularity Credits" usage-based model) isn't transparent until you're deep in a sales conversation. Teams not already invested in SentinelOne's endpoint platform would need to switch their entire EDR stack to get it, which is a much bigger decision than adopting a standalone AI security tool like Vectra or HiddenLayer.
Key Features
Agentic Investigation: Autonomously initiated "zero-click" investigations that detect, investigate, verify, and respond to threats without waiting on analyst action.
Natural Language Threat Hunting: Analysts can query security data conversationally instead of writing complex detection queries.
Machine-Speed Reasoning: Reasons across OCSF-normalized data, compressing investigations that took hours into minutes.
Guided Investigation for Junior Analysts: Step-by-step guidance that shortens the ramp-up time for less experienced SOC staff.
Human-in-the-Loop Controls: Analysts retain full visibility and override authority over autonomous actions.
Privacy-First Design: Customer data is never used to train shared models, addressing a common enterprise objection to AI SOC tools.
Pricing
Starting price
Included from the Singularity Complete tier, priced at $179.99/endpoint; full Purple AI pricing not publicly listed
Singularity Complete: Starting around $179.99/endpoint, includes core Purple AI functionality.
Singularity Credits: A usage-based currency layered on top for running AI-powered investigations and newer agentic features; consumption-based cost varies by usage.
Enterprise Custom: Full platform and Purple AI pricing depends on tier, deployment scope, and data retention needs; requires a sales quote.
Disclaimer: pricing may change, confirm on SentinelOne's own pricing page before buying.
Pros
Deep telemetry integration: Investigations are grounded in real Singularity Platform data, not generic AI guesswork.
Genuine time savings: Compresses hours-long investigations into minutes for both junior and senior analysts.
Multi-model reasoning: Combines Claude, GPT, and proprietary models rather than relying on a single LLM.
Privacy commitments: Explicit no-shared-model-training policy addresses a common enterprise security concern.
Cons
Not standalone: Requires a Singularity Platform subscription; can't be purchased as an independent AI layer.
Opaque, tiered pricing: Full Purple AI capability sits at higher platform tiers, and usage-based "Singularity Credits" pricing adds another layer of complexity.
Vendor lock-in: Best value only realized if you commit fully to SentinelOne's endpoint ecosystem.
What Makes It Unique
Zero-click autonomous investigation: Purple AI can independently detect, investigate, verify, and act on threats above a defined risk threshold, a more autonomous posture than most "AI copilot" security tools that only assist a human-initiated workflow.
Kay Score
7.5
/ 10
