Duck.ai vs Sublime Security

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

Analysis reviewed Live tool data as of 2026-10-08
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At a glance

DimensionDuck.aiSublime Security
PricingFreePaid (contact for pricing)
Primary Use CasePrivate AI chat and searchEnterprise email security (BEC/VEC/phishing)
Target AudiencePrivacy-conscious individualsSecurity teams in mid-to-large enterprises
IntegrationNone (web/mobile app)Microsoft 365, Google Workspace
Key FeatureNo account required, no loggingCustom detection rules with Sublime Script
Latest NewsLaunched June 2026 as free private AI chat from DuckDuckGoNo recent news
Duck.ai
Duck.ai

Free private AI chat from DuckDuckGo with no account required, supporting GPT-4o and Claude models.

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Sublime Security
Sublime Security

Agentic email security that auto-triages reported phishing and writes org-specific detections for your SOC.

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Pricing
Free
Contact Sales
Plans
$0
$0
Popularity
16 views
7.5k views
Skill Level
Beginner-friendly
Advanced
API Available
Platforms
WebMobilePlugin
APIWeb
Categories
🔀 Multi-Model AI Chat🔒 Security & Privacy
🚨 Threat Detection & SOC
Features
Free AI chat with no account or signup required
Model selection including GPT-4o and Claude
Privacy proxy strips identifying information before queries reach the model
Conversations are not stored
Chats are not used for model training
Blocks third-party trackers
Voice chat mode (New Voice Chat)
Image creation and editing (New Image, CTRL+SHIFT+I)
Keyboard shortcuts for new chat (CTRL+SHIFT+O)
Chat suggestions on the homepage
Web app accessible at duck.ai
Mobile app
Browser extension
Anonymous access with no email or login
Real-time conversational text responses
Autonomous Security Analyst (ASA) auto-triages user-reported phishing emails
Autonomous Detection Engineer (ADÉ) authors backtested, org-specific detections
One-click approval before new detections go live
Custom detections written in Sublime Script, a YARA-like language
Full transparency into every decision: 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 in real time
Detects credential phishing, callback phishing, QR code phishing, and ICS phishing
Prompt injection and malware/ransomware detection in email
Email DLP for stopping sensitive data loss over email (GA September 30, 2026)
Advanced graymail protection filtering bulk and newsletter noise (public beta July 2026)
Native deployment over Microsoft 365 and Google Workspace mail
Free email analyzer tool plus analyzer API for ad-hoc message scans
API for programmatic access to detections and verdicts
Integrations
Microsoft 365
Google Workspace

What real users say: Duck.ai 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.

Duck.ai

84 mentions across 6 sources · 63% positive — mixed (weighted across 6 sources)

Hacker News, YouTube, Product Hunt, App Store, Stack Overflow, Lemmy

What users praise

  • • No account required — truly anonymous AI chat access.
  • • Multiple top models in one place, easy to compare.
  • • Privacy proxy strips identifying info from queries.
  • • Free to use with no paid tiers.

What frustrates them

  • • Default model (GPT-Nano) often delivers poor responses.
  • • Mobile app crashes frequently, losing user progress.
  • • Some models exhibit annoying moralizing or censorship.
  • • Lacks advanced features like custom agents or file uploads.

Researched Sep 9, 2026

Sublime Security

14 mentions across 2 sources · 76% positive (weighted across 2 sources)

YouTube, Lemmy

What users praise

  • • Transparent, auditable verdicts with matched detections beat black-box scoring in the eyes of security practitioners
  • • Sublime Script's YARA-like syntax means your own detection engineers can read and test rules
  • • ASA auto-triage of user-reported phishing targets the exact backlog SOCs complain about
  • • ADÉ drafts backtested org-specific detections that land for one-click approval

What frustrates them

  • • Public feedback is dominated by YouTube comments — almost no Reddit, HN, or review-site validation
  • • Advanced skill floor means detection-engineering capability is a prerequisite, not a bonus
  • • Sublime Script detections need ongoing tuning that falls on your team to own
  • • No public pricing — every real quote requires a sales conversation

Researched Oct 7, 2026

Who should pick which

  • Privacy-conscious individual wanting anonymous AI chat
    Pick: Duck.ai

    Duck.ai requires no account and does not log conversations, ensuring complete privacy for personal Q&A and text generation.

  • Security analyst in a mid-to-large enterprise facing targeted BEC attacks
    Pick: Sublime Security

    Sublime Security offers AI-driven detection, custom rules (Sublime Script), and integration with M365/Google Workspace, ideal for advanced email threat hunting and response.

  • Journalist researching sensitive topics
    Pick: Duck.ai

    Duck.ai's anonymous chat and tracker blocking provide a safe environment for discussing sensitive subjects without surveillance.

  • IT team needing to complement existing email security with low false positives
    Pick: Sublime Security

    Sublime's adaptive learning and low false positive rates reduce alert fatigue, and its YARA-like language allows customization for specific threat patterns.

  • Student needing private research assistance
    Pick: Duck.ai

    Duck.ai is free, requires no sign-up, and supports multiple AI models, making it a convenient tool for academic queries without personal data exposure.

Frequently Asked Questions

Does Duck.ai require an account?

No, Duck.ai does not require an account to use its core features.

What AI models does Duck.ai support?

Duck.ai supports multiple large language models, including GPT-4o and Claude.

Is Sublime Security a replacement for my existing email gateway?

Sublime Security is designed to complement or replace legacy gateways like Proofpoint and Mimecast, especially for advanced threats like BEC and VEC.

Can I use Duck.ai for business purposes?

Duck.ai is intended for individual private use; it does not offer collaborative features or API integrations suitable for teams.

What integrations does Sublime Security support?

Sublime Security integrates with Microsoft 365 and Google Workspace.

How does Duck.ai protect my privacy?

Duck.ai routes queries through a proxy that strips identifying information, blocks third-party trackers, and does not store or log conversations.

What is Sublime Script?

Sublime Script is a YARA-like language used to create custom detection rules for email threats within Sublime Security.

Which tool is better for a small business without security staff?

Neither is ideal: Duck.ai is not an email security tool, and Sublime Security is designed for teams with dedicated security staff. For basic email security, consider simpler set-and-forget solutions.

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Last reviewed: July 2, 2026