# Check Point Harmony Email & Collaboration vs Abnormal AI: which do AI models recommend for email security, October 2026

IT AI Recommendation Index, October 2026 Edition, Email security. Three of fourteen models named Check Point Harmony Email & Collaboration first on the direct prompt; two named Abnormal AI. Page: https://it-ai-index.com/security/email-security/check-point-harmony-email-collaboration-vs-abnormal-ai/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Check Point Harmony Email & Collaboration | 8% | #6 of 9 | 3% | 35 | 14 of 14 |
| Abnormal AI | 4% | #7 of 9 | 2% | 42 | 14 of 14 |

## The direct prompt, model by model

- Gemini 3.5 Flash: check point harmony email & collaboration first (first choices: Check Point Harmony Email & Collaboration) (alternatives: Abnormal AI, Barracuda Email Protection, IRONSCALES)
- Mistral Small: check point harmony email & collaboration first (first choices: Check Point Harmony Email & Collaboration, Proofpoint Email Protection) (alternatives: Mimecast Email Security, Symantec Email Security.cloud)
- MiniMax M2.5: check point harmony email & collaboration first (first choices: Check Point Harmony Email & Collaboration, Mimecast Email Security)
- DeepSeek V4 Flash: abnormal ai first (first choices: Abnormal AI) (alternatives: Check Point Harmony Email & Collaboration, Microsoft Defender for Office 365, Proofpoint Email Protection)
- GPT-6 Luna: abnormal ai first (first choices: Abnormal AI) (alternatives: Microsoft Defender for Office 365, Mimecast Email Security, Proofpoint Email Protection)
- GPT-5.4 mini: neither first, one named (first choices: Microsoft Defender for Office 365) (alternatives: Abnormal AI, Mimecast Email Security, Proofpoint Email Protection)
- Perplexity Sonar: neither first, one named (first choices: Microsoft Defender for Office 365) (alternatives: Check Point Harmony Email & Collaboration, Mimecast Email Security)
- Grok 4.1 Fast: neither first, one named (first choices: Proofpoint 365 Total Protection) (alternatives: Abnormal AI, Mimecast Email Security)
- Qwen 3.7 Flash: neither first, one named (first choices: Proofpoint Email Protection) (alternatives: Abnormal AI, IRONSCALES, Microsoft Defender for Office 365)
- Kimi K2: neither first, one named (first choices: IRONSCALES) (alternatives: Abnormal AI, Mimecast Email Security, Proofpoint Email Protection)
- GLM 4.7 FlashX: neither first, one named (first choices: Microsoft Defender for Office 365) (alternatives: Abnormal AI, Barracuda Integrated Email Protection, IRONSCALES, Proofpoint Email Protection)
- Muse Glimmer 30B: neither first, one named (first choices: Proofpoint Email Protection) (alternatives: Abnormal AI, Barracuda Email Protection, Check Point Harmony Email & Collaboration, Guardian Digital, Microsoft Defender for Office 365, ThreatDown Email Security, Trustifi)
- Claude Haiku 4.5: neither named (first choices: Barracuda Email Protection) (alternatives: IRONSCALES, Mimecast Email Security, Proofpoint Email Protection)
- Llama 4 Maverick: neither named

## What the models said about Check Point Harmony Email & Collaboration

- "Several major vendors (including Avanan/Check Point, Proofpoint, and Mimecast) scan emails by re-wrapping them or stripping headers" (GLM 4.7 FlashX, negative prompt, soft negative)
- "Best Overall for Security Efficacy and Collaboration Apps
Avanan is widely considered a market leader because of its patented architecture." (Gemini 3.5 Flash, direct prompt, first choice)
- "Best for: Maximum detection strength and proactive blocking ... a market leader because of its unique architecture" (Gemini 3.5 Flash, paraphrase prompt, first choice)
- "such as Abnormal Security, Avanan, or Sublime) connect directly to your email provider via native APIs" (Gemini 3.5 Flash, negative prompt, first choice)

## What the models said about Abnormal AI

- "Abnormal Security (caution, not avoid)" (DeepSeek V4 Flash, negative prompt, soft negative)
- "I'd shortlist Abnormal AI as the best add-on for catching business-email-compromise (BEC), vendor impersonation, and other attacks that slip past standard filtering" (GPT-6 Luna, direct prompt, first choice)
- "Abnormal Security is the top AI-native option for teams that need API-based detection of social-engineering attacks without gateway overhead." (Muse Glimmer 30B, comparative prompt, first choice)
- "These solutions (such as Abnormal Security, Avanan, or Sublime) connect directly to your email provider via native APIs." (Gemini 3.5 Flash, negative prompt, first choice)

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category. Comparisons are drawn for the top eight products in each category. Published under CC BY 4.0; the output is the models' output, and nothing here is a recommendation by the index.