Skylos vs Sublime Security
Side-by-side comparison of features, pricing, and ratings
At a glance
| Dimension | Skylos | Sublime Security |
|---|---|---|
| Target Problem | Code quality & AI-generated code defects | Email security (BEC, phishing) |
| Pricing | Free CLI, $9/mo Cloud Workspace | Contact for pricing (paid) |
| Primary Language/Platform | Python (CLI, CI integration) | Email platforms (Microsoft 365, Google Workspace) |
| AI Focus | Detect AI-code mistakes (hallucinated imports, etc.) | AI-powered threat detection & conversational analysis |
| Integrations | GitHub Actions, Slack, Discord, VS Code, Claude Code, Cursor, MCP | Microsoft 365, Google Workspace |
| False Positives | 21× fewer false positives than Vulture on Flask | Low false positive rates via adaptive learning |
If your pain point is AI-generated Python code introducing bugs or security flaws, Skylos is the clear choice with its low false positives and free tier. If you're defending against advanced email threats like BEC, Sublime Security offers powerful AI detection with custom rules, but its opaque pricing and enterprise focus may not suit small teams. Choose based on attack surface: code vs. inbox.
Local-first Python static analysis CLI that catches dead code, secrets, and AI-code mistakes before they merge.
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Agentic email security for enterprise BEC and targeted phishing defense
Visit WebsiteWhat real users say: Skylos 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.
Skylos
8 mentions across 2 sources · 75% positive
Hacker News, Lemmy
What users praise
- • Low false-positive rate compared to Vulture on Flask.
- • Detects hallucinated imports and phantom calls from AI coding assistants.
- • No login required for local scans.
- • Free CLI with optional $9/month cloud workspace.
What frustrates them
- • Deep framework awareness still in development.
- • Limited to Python and selected frameworks.
- • Early-stage tool with potential instability.
- • Community support only; no paid support tier.
Researched Jul 3, 2026
Sublime Security
28 mentions across 2 sources · 38% positive — critical
YouTube, Lemmy
What users praise
- • Transparent, evidence-backed verdicts build analyst trust and aid audits.
- • AI agents automate triage and detection rule authoring, saving time.
- • Low false positive rates (30-70% fewer) reduce alert fatigue.
- • Sublime Script enables precise, custom detections tailored to environment.
What frustrates them
- • Steep learning curve; requires advanced detection engineering skills.
- • Limited community feedback and long-term reliability data available.
- • Proprietary Sublime Script may create vendor lock-in.
- • Pricing not public; contact-based could be expensive for SMBs.
Researched Aug 18, 2026
Who should pick which
- Python developer using AI coding assistantsPick: Skylos
Skylos catches hallucinated imports, phantom calls, and removed security controls from AI-generated code, with a free CLI and low false positives.
- Security team in a large enterprise facing BEC attacksPick: Sublime Security
Sublime's AI-powered conversational analysis and custom YARA-like rules detect sophisticated email threats with low false positives.
- Open source maintainer cleaning Python codePick: Skylos
Skylos detects dead code and quality issues with 21× fewer false positives than Vulture, and is free to use.
- SOC analyst needing proactive email threat huntingPick: Sublime Security
Sublime's threat hunting interface and deep visibility into email attacks enable analysts to investigate and respond to advanced threats.
- DevOps engineer setting up CI quality gatesPick: Skylos
Skylos integrates natively with GitHub Actions and provides a PR gate to block high-confidence regressions, as highlighted in recent news.
Frequently Asked Questions
Skylos vs Sublime Security: which should you choose?
If your pain point is AI-generated Python code introducing bugs or security flaws, Skylos is the clear choice with its low false positives and free tier. If you're defending against advanced email threats like BEC, Sublime Security offers powerful AI detection with custom rules, but its opaque pricing and enterprise focus may not suit small teams. Choose based on attack surface: code vs. inbox.
Are Skylos and Sublime Security competitors?
Not directly. Skylos focuses on static analysis for Python code (especially AI-generated code), while Sublime focuses on email security. They address different attack surfaces.
Does Skylos support languages other than Python?
Skylos is primarily Python-focused. Other language support is limited, so it's best for Python projects.
Does Sublime Security offer a free tier?
No. Sublime Security is paid only, with pricing available upon contacting sales. There is no public free tier.
Can Skylos detect secrets from AI-generated code?
Yes, Skylos includes secrets detection for hardcoded credentials like AWS and Stripe, and specifically catches insecure defaults and removed controls from AI assistants.
What integrations does Sublime Security offer?
Sublime integrates with Microsoft 365 and Google Workspace for email scanning, but does not support code repositories or CI/CD tools.
How does Skylos integrate with AI coding agents?
Skylos works seamlessly with Claude Code and Cursor via CLI, VS Code extension, and MCP server, catching AI-specific mistakes like hallucinated imports.
Is Sublime Security suitable for small businesses?
It's not recommended for small businesses without dedicated security staff, as it requires tuning detection rules and has enterprise pricing.
Does Skylos require internet connectivity?
Local scans work offline; cloud features like shared triage require uploads. The CLI is local-first and free.
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Last reviewed: July 3, 2026