Duck.ai vs Sublime Security
Side-by-side comparison of features, pricing, and ratings
At a glance
| Dimension | Duck.ai | Sublime Security |
|---|---|---|
| Pricing | Free | Paid (contact for pricing) |
| Primary Use Case | Private AI chat and search | Enterprise email security (BEC/VEC/phishing) |
| Target Audience | Privacy-conscious individuals | Security teams in mid-to-large enterprises |
| Integration | None (web/mobile app) | Microsoft 365, Google Workspace |
| Key Feature | No account required, no logging | Custom detection rules with Sublime Script |
| Latest News | Launched June 2026 as free private AI chat from DuckDuckGo | No recent news |

Free private AI chat from DuckDuckGo with no account required, supporting GPT-4o and Claude models.
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Agentic email security that auto-triages reported phishing and writes org-specific detections for your SOC.
Visit WebsiteWhat 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 chatPick: 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 attacksPick: 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 topicsPick: 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 positivesPick: 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 assistancePick: 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