# Corelight Open NDR alternatives: what AI models name instead, November 2026

Gane Index, November 2026 Edition. 183 of the 252 answers in the 1 category where Corelight Open NDR holds a standing named it neither first nor as an alternative; these are the first choices those answers made. Page: https://www.gane.ai/index/it/vendors/corelight-open-ndr/alternatives

## Named instead, most often (every category and segment added)

- Sophos NDR: 11
- Vectra AI Platform: 11
- Paessler PRTG Network Monitor: 8
- Darktrace: 7
- Rapid7 InsightIDR: 5
- Security Onion: 5

## Network detection and response

**Small business**: 71 of 84 answers did not name Corelight Open NDR (Corelight Open NDR is #11 of 15 at 0%).

- Sophos NDR: first choice in 11 of those 71
- Paessler PRTG Network Monitor: first choice in 8 of those 71
- Security Onion: first choice in 5 of those 71
- Stellar Cyber Open XDR: first choice in 4 of those 71
- Rapid7 InsightIDR: first choice in 3 of those 71
- SonicWall Network Security: first choice in 3 of those 71
- Darktrace: first choice in 2 of those 71
- FortiNDR: first choice in 2 of those 71

**Mid-market**: 60 of 84 answers did not name Corelight Open NDR (Corelight Open NDR is #4 of 10 at 2%).

- Vectra AI Platform: first choice in 7 of those 60
- ExtraHop Reveal: first choice in 3 of those 60
- ManageEngine NetFlow Analyzer: first choice in 3 of those 60
- Auvik Network Management: first choice in 2 of those 60
- Darktrace: first choice in 2 of those 60
- Flowmon: first choice in 2 of those 60
- ManageEngine OpManager: first choice in 2 of those 60
- Rapid7 InsightIDR: first choice in 2 of those 60

**Enterprise**: 52 of 84 answers did not name Corelight Open NDR (Corelight Open NDR is #5 of 8 at 4%).

- Cisco Secure Network Analytics: first choice in 4 of those 52
- ExtraHop RevealX: first choice in 4 of those 52
- Vectra AI Platform: first choice in 4 of those 52
- Darktrace: first choice in 3 of those 52
- Kentik: first choice in 3 of those 52
- ExtraHop Reveal(x) 360: first choice in 1 of those 52
- IronNet: first choice in 1 of those 52
- ManageEngine NetFlow Analyzer: first choice in 1 of those 52

Published under CC BY 4.0. The output is the models' output; nothing here is a recommendation by the index.