Adrian vs Sublime Security

Side-by-side comparison of features, pricing, and ratings

Analysis reviewed Live tool data as of 2026-10-18
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At a glance

DimensionAdrianSublime Security
Target ProblemRuntime security for AI agentsAI-driven email security
PricingFreemium (open-source core; enterprise controls available)Paid (contact for pricing)
Key FeaturesChain-of-thought monitoring, prompt injection detection, policy drift detection, human-in-the-loop approvalConversational analysis, YARA-like custom rules, BEC/VEC detection, threat hunting
IntegrationsAgent frameworks via API, Splunk, Sentinel, Discord, GitHub, MCPMicrosoft 365, Google Workspace
Best ForTeams building autonomous AI agents, multi-agent swarms, regulated industriesSecurity teams in mid-to-large enterprises combating advanced email threats

Choose Adrian if you need runtime security for AI agents—especially autonomous systems in production—and want an open-source, low-overhead toolkit. Choose Sublime Security if your primary concern is advanced email threats like BEC/VEC and you need deep integration with Microsoft 365 or Google Workspace with custom detection rules.

Adrian
Adrian

Adrian is open-source runtime security that reads an AI agent's chain of thought and blocks malicious plans before they execute.

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Sublime Security
Sublime Security

Agentic email security that auto-triages reported phishing and writes custom detections for your SOC

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Pricing
Freemium
Contact Sales
Plans
$0
Custom
$0
Popularity
4 views
7.5k views
Skill Level
Advanced
Advanced
API Available
Platforms
APICLI
APIWeb
Categories
🛡️ AI Governance & Guardrails
🚨 Threat Detection & SOC
Features
Chain-of-thought monitoring via a Python SDK wrapped around your agent
Real-time capture of agent action telemetry alongside its reasoning
Reasoning engine that evaluates agent plans against your security policies
Prompt injection detection before the agent executes an action
Detection of policy violations and out-of-remit reasoning
Overt-harm detection such as cryptomining and data exfiltration
Contextual-harm detection, e.g. an e-commerce agent resetting a user password
Block mode that pauses each agent action for review before it proceeds
Alert mode that pushes security alerts to Slack, Discord, or WhatsApp
Human-in-the-loop approval workflows for high-risk actions
Action sandboxing so an agent can attempt an action without committing
Behavioural interrogation to surface manipulation and reasoning drift
Agent-aware monitoring built for systems that reason and act
Self-hosted open-source core with GitHub access
Shift-left security for agent development pipelines
Autonomous Security Analyst (ASA) auto-triages user-reported phishing end to end
Autonomous Detection Engineer (ADÉ) authors backtested org-specific detections
One-click approval before any new detection goes live
Custom detections written in Sublime Script, a YARA-like language
Full transparency into every verdict: matched detections and signal analysis
Behavioral threat-hunting interface for proactive investigation
Automated response actions: quarantine, alert and remediation
Detects BEC and vendor email compromise
Detects credential phishing, callback phishing, QR code phishing, ICS phishing
Prompt injection and malware/ransomware detection in email
Email DLP for stopping sensitive data loss over email (GA)
Advanced graymail protection filtering bulk and newsletter noise (public beta, July 2026)
Native deployment over Microsoft 365 and Google Workspace mail
Free email analyzer plus analyzer API for ad-hoc message scans
API for programmatic access to detections and verdicts
Integrations
Slack
Discord
WhatsApp
GitHub
Microsoft 365
Google Workspace

What real users say: Adrian vs Sublime Security

Not marketing copy and not our opinion — a structured sweep of public discussion (reviews, forums, communities and video comments), showing what people praise and what they complain about for each tool.

Adrian

75 mentions across 6 sources · 16% positive — critical (averaged across 6 sources)

Hacker News, Product Hunt, Bluesky, Stack Overflow, GitHub, Lemmy

What users praise

  • • Monitors actual chain-of-thought, not just inputs/outputs of agents.
  • • Open-source codebase allows full audit and customization.
  • • Blocks prompt injection and policy drift before execution.
  • • Supports human-in-the-loop approval for risky actions.

What frustrates them

  • • Fail-open on errors makes it unreliable for security.
  • • Sync tool execution bypasses BLOCK/HITL entirely.
  • • Dashboard filter mismatch hinders investigation.
  • • Very small community limits third-party validation.

Researched Jul 6, 2026

Sublime Security

20 mentions across 2 sources · 80% positive (weighted across 2 sources)

YouTube, Lemmy

What users praise

  • • Verdicts show matched detections and signal analysis — analysts can read why, not trust a score
  • • Sublime Script is a YARA-like language your engineers can inspect, test, and tune
  • • ASA auto-triages user-reported phishing end to end, cutting the abuse-mailbox backlog
  • • ADÉ authors backtested, environment-specific detections that land ready for one-click approval

What frustrates them

  • • Community footprint is thin — one video thread, and no independent Reddit or HN validation
  • • Vendor efficiency claims (80% faster, 70% fewer FPs) are unverified by third parties
  • • Tuning workload is real and continuous if no one owns the rule library
  • • Not set-and-forget — teams replacing a legacy SEG should expect an operational shift

Researched Oct 14, 2026

Who should pick which

  • AI Agent Developer
    Pick: Adrian

    Adrian provides runtime monitoring and protection for autonomous agents, including chain-of-thought analysis and prompt injection blocking.

  • SOC Analyst
    Pick: Sublime Security

    Sublime offers deep email threat detection with low false positives, ideal for hunting BEC/VEC attacks and integrating with M365/Google Workspace.

  • Regulated Industry Security Lead
    Pick: Adrian

    Adrian’s action sandboxing and policy drift detection support compliance requirements for AI agents in finance or healthcare.

  • Email Security Lead
    Pick: Sublime Security

    Sublime’s conversational analysis and custom rules provide advanced protection against impersonation and phishing.

Frequently Asked Questions

Adrian vs Sublime Security: which should you choose?

Choose Adrian if you need runtime security for AI agents—especially autonomous systems in production—and want an open-source, low-overhead toolkit. Choose Sublime Security if your primary concern is advanced email threats like BEC/VEC and you need deep integration with Microsoft 365 or Google Workspace with custom detection rules.

Which tool is open-source?

Adrian is open-source (freemium). Sublime Security is a paid, proprietary platform.

Can either tool protect against AI agent attacks?

Adrian is specifically built for AI agent runtime security. Sublime focuses on email threats and does not address agent runtime.

Which integrates with Microsoft 365?

Sublime Security integrates with Microsoft 365 and Google Workspace. Adrian integrates with security triage platforms like Splunk and Sentinel, not email services.

Do both offer custom detection rules?

Adrian detects policy drift and malicious tool use via behavioral analysis. Sublime offers a YARA-like custom rule language (Sublime Script) for email detection.

Which is better for small teams?

Adrian’s freemium model and low overhead suit small technical teams. Sublime is geared toward mid-to-large enterprises with dedicated security staff.

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Last reviewed: July 6, 2026