SentinelOne Purple AI

What is SentinelOne Purple AI?

SentinelOne Purple AI is an agentic AI security analyst built into the SentinelOne Singularity Platform, designed to detect, investigate, and respond to cyber threats autonomously within security operations centers (SOCs). It allows security analysts to ask plain-English questions about threats without needing to learn complex query syntax, converting natural language into structured investigations across an organization's full data stack. Purple AI sits inside the broader Singularity XDR environment, pulling in telemetry from SentinelOne's own tools as well as third-party vendors like Zscaler, Palo Alto Networks, Okta, and Microsoft Office 365. As of SentinelOne's Q4 FY26 earnings, Purple AI was included in over 50% of all licenses sold during that quarter, indicating broad adoption across enterprise SOC deployments.

Key Features

• Natural Language Interface: Allows analysts to ask plain-English questions about security data without requiring knowledge of query syntax, supporting queries in 12 languages including Spanish, French, German, Arabic, Japanese, and Korean.
• Auto Investigation: Autonomously gathers cross-stack evidence, synthesizes threat data, and constructs complete attack timelines in real time with explainable verdicts without manual analyst input.
• Threat Hunting Quickstarts and Guided Investigations: Expert-curated workflows with contextual next-step suggestions to help reduce mean time to detect (MTTD).
• Investigation Notebooks: Stores hunts, pivots, and findings as reusable artifacts that analysts can review, share, and audit across their team.
• Auto-Triage: Evaluates incoming alerts using AI similarity analysis and global community intelligence to distinguish common threats from novel ones, reducing alert fatigue.
• Alert Enrichment: Adds context to each alert including Community Verdict and Similar Alerts data to accelerate the triage process.
• Automated Reporting: Generates post-investigation summaries and communication templates so analysts can update stakeholders without writing reports from scratch.
• Multi-Source Data Integration: Ingests and normalizes data from third-party security vendors using the Open Cybersecurity Schema Framework (OCSF), avoiding costly data migrations.

Use Cases

• Security analysts investigating active threats: Analysts type natural language questions such as "Show me suspicious PowerShell activity from the last 24 hours and summarize the top 3 hosts" and receive structured answers with recommended next steps, reducing the time spent manually querying logs.
• SOC teams managing high alert volumes: Auto-Triage evaluates incoming alerts in context, applying AI similarity analysis and community intelligence so analysts can focus on novel threats rather than working through large queues of known or low-priority alerts.
• Incident response teams needing fast timelines: Auto Investigation performs end-to-end evidence gathering and constructs attack timelines, reducing investigation time from hours or days to minutes or seconds according to SentinelOne's reported outcomes.
• Managed service providers (MSPs) supporting multiple clients: Purple AI's investigation notebooks and automated reporting give MSP analysts reusable workflows and ready-made summaries and is practical to manage security operations across multiple customer environments.
• Enterprise teams running multi-vendor security stacks: Through OCSF support and integrations with Zscaler, Palo Alto Networks, Okta, Proofpoint, Fortinet, and Microsoft Office 365, Purple AI correlates data across tools without requiring teams to consolidate onto a single vendor.

Strengths and Weaknesses

Strengths:

• Vendor-reported data indicates 80% faster threat hunting and a reduced mean time to investigate (MTTI) compared to manual methods.
• Natural language querying removes the barrier of learning proprietary query syntax and is accessible to analysts at varying skill levels.
• Multilingual support across 12 languages broadens usability for international security teams.
• Customer data is not used for model training, and query translations are surfaced to analysts for verification, addressing common privacy concerns around AI in security.
• High adoption rate, included in over 50% of licenses sold in Q4 FY26, suggests the feature integrates well into existing SentinelOne deployments.

Weaknesses:

• No verified independent user reviews or third-party ratings for Purple AI specifically are available at the time of this listing. Available feedback comes primarily from vendor-reported early adopter data.
• Purple AI is not available as a standalone product. Access requires a Singularity Complete tier license or higher, which carries a list price starting at $179.99 per endpoint per year.
• Advanced agentic AI SOC capabilities are reserved for the Singularity Enterprise tier, which is custom-priced and may be out of reach for smaller organizations.
• Overall SentinelOne platform costs for mid-market deployments can reach $80,000 to $250,000 or more per year depending on data lake size and add-ons.

Pricing

Purple AI is included in Singularity Complete and above. SentinelOne does not publish exact pricing on its website. The figures below are third-party reported list prices per endpoint per year. Actual costs are typically 10 to 40% lower after negotiation, and enterprise pricing is always custom.

• Singularity Core: $69.99/endpoint/year, basic next-generation antivirus (NGAV), no EDR or Purple AI
• Singularity Control: $79.99/endpoint/year, expanded security suite, no EDR or Purple AI
• Singularity Complete: $179.99/endpoint/year, includes EDR, Storyline, and Purple AI natural-language investigation, 14-day data retention
• Singularity Commercial: $229.99/endpoint/year, adds identity detection and managed threat hunting alongside Purple AI, 90-day data retention
• Singularity Enterprise: Custom pricing, includes all prior tiers plus Agentic AI SOC capabilities, full forensics, and managed onboarding

Billing is typically annual. Volume discounts apply (reported at 25 to 40% off for 2,000 or more endpoints), and multi-year deals may add a further 5 to 10% discount. Extended data retention, Ranger network visibility, and Vigilance MDR are priced separately.

FAQ

What is Purple AI in SentinelOne?

Purple AI is an agentic AI security analyst built into the SentinelOne Singularity Platform that detects, investigates, and responds to cyber threats autonomously within SOC environments. It allows analysts to ask plain-English questions about threats without needing to learn complex query syntax, converting natural language into structured investigations across an organization's full data stack.

Does SentinelOne use AI?

Yes. Purple AI is integrated directly into the Singularity Platform and performs functions including automated alert triage, cross-stack investigation, threat hunting, and report generation. It was included in over 50% of all licenses sold during SentinelOne's Q4 FY26 quarter.

What languages does Purple AI support?

Purple AI supports natural language queries in 12 languages, including Spanish, French, German, Arabic, Japanese, and Korean.

What third-party tools does Purple AI integrate with?

Purple AI ingests data from third-party vendors including Zscaler, Palo Alto Networks, Okta, and Microsoft Office 365. It normalizes data using the Open Cybersecurity Schema Framework (OCSF), which avoids the need for costly data migrations.

What is Auto Investigation in Purple AI?

Auto Investigation autonomously gathers cross-stack evidence, synthesizes threat data, and constructs complete attack timelines in real time without requiring manual analyst input. It produces explainable verdicts as part of the investigation output.

What is Auto-Triage in Purple AI?

Auto-Triage evaluates incoming alerts using AI similarity analysis and global community intelligence to distinguish common threats from novel ones. Its primary function is to reduce alert fatigue for SOC teams managing high alert volumes.

What are Investigation Notebooks in Purple AI?

Investigation Notebooks store hunts, pivots, and findings as reusable artifacts that analysts can review, share, and audit across their team.

What is purple testing in cybersecurity?

Purple testing is a cybersecurity exercise that combines red team offensive tactics with blue team defensive monitoring to identify gaps in detection and response. It is a general industry practice and is distinct from SentinelOne's Purple AI product.

How does Purple AI help with incident reporting?

Purple AI generates post-investigation summaries and communication templates so analysts can update stakeholders without writing reports manually from scratch.

What is the Singularity Platform?

The Singularity Platform is SentinelOne's extended detection and response (XDR) environment, within which Purple AI operates. It pulls in telemetry from SentinelOne's own tools as well as integrated third-party vendors.

Is SentinelOne an Israeli company?

SentinelOne was founded by Israeli entrepreneurs and has research and development operations in Israel, but it is incorporated and headquartered in the United States.

Who is acquiring SentinelOne?

No acquisition of SentinelOne has been confirmed in the provided source material. For current and accurate information on this topic, refer to official SentinelOne investor relations announcements.

Is SentinelOne better than CrowdStrike?

The provided source material does not include a comparison between SentinelOne and CrowdStrike. Independent analyst reports and third-party evaluations such as MITRE ATT&CK assessments are the appropriate resources for that comparison.