Network monitoring and management · October 2026 Edition
LibreNMS vs Nagios
Zero of fourteen models named LibreNMS first on the direct prompt; zero named Nagios. LibreNMS was named by ten of the fourteen models and Nagios by fourteen and LibreNMS carries 16 labels and Nagios 32, so the shares are not directly comparable.
Named in one category this edition.
Named in two categories this edition.
First-choice share6%4%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate6%44%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#5#7A position in a field of 12; printed, not drawn.
Labels1632A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, LibreNMS reading right to left. Rank and label count are printed, not drawn.ManageEngine OpManager was named alongside these two in ten of the fourteen direct answers. Auvik vs LibreNMS · Auvik vs Nagios · ManageEngine OpManager vs LibreNMS
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; every quote names the model and the prompt it came from. Both figures come from the network monitoring and management page.
By framing
How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
LibreNMSFirst choices, of fourteen modelsNagios
Direct001 against LibreNMS · 1 against Nagios
Paraphrase00
Comparative003 against Nagios
Budget-constrained322 against Nagios
Scale-constrained00
Negative108 against Nagios
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.
Every model, every framing
The eighty-four answers behind the chart above, one cell each: where LibreNMS and Nagios stood in it.
| Model | Direct | Paraphrase | Comparative | Budget-constrained | Scale-constrained | Negative |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | | | ||||
| GPT-5.4 mini | | |||||
| Gemini 3.5 Flash | | | | | ||
| Perplexity Sonar | | | ||||
| Grok 4.1 Fast | | | ||||
| Mistral Small | | | | |||
| DeepSeek V4 Flash | | | ||||
| Llama 4 Maverick | | |||||
| Qwen 3.7 Flash | | | | |||
| Kimi K2 | | | | |||
| GLM 4.7 FlashX | | | ||||
| MiniMax M2.5 | | |||||
| GPT-6 Luna | | | ||||
| Muse Glimmer 30B | | | |
LibreNMS Nagios first choice named as an alternative argued againstblank: not namedEach cell is one answer, LibreNMS on the left and Nagios on the right.The direct prompt
The plain question, one answer per model, grouped by where LibreNMS and Nagios stood in it.
Neither was the first choice, one was named
1 of 14 modelsThe answer put something else first and named one of the two as an alternative.Llama 4 MaverickDatadog Network Monitoring alternatives: Nagios, Netdata
Neither was named
13 of 14 modelsThe answer made no first choice from these two in this category.Claude Haiku 4.5ManageEngine OpManager, Paessler PRTG Network Monitor alternatives: Zabbix
GPT-5.4 miniSolarWinds Network Performance Monitor alternatives: Datadog Network Monitoring, Paessler PRTG Network Monitor, Zabbix
Gemini 3.5 FlashAuvik alternatives: LogicMonitor, ManageEngine OpManager, Paessler PRTG Network Monitor
Perplexity SonarManageEngine OpManager alternatives: Datadog Network Monitoring, Domotz, LogicMonitor
Grok 4.1 FastManageEngine OpManager alternatives: Progress WhatsUp Gold
Mistral SmallLogicMonitor alternatives: Datadog Network Monitoring, ManageEngine OpManager
DeepSeek V4 FlashAuvik alternatives: Datadog Network Monitoring, LogicMonitor, Paessler PRTG Network Monitor
Qwen 3.7 FlashManageEngine OpManager alternatives: Datadog Network Monitoring, LogicMonitor, Progress WhatsUp Gold, Zabbix
Kimi K2ManageEngine OpManager alternatives: Auvik, Paessler PRTG Network Monitor, Progress WhatsUp Gold
GLM 4.7 FlashXPaessler PRTG Network Monitor alternatives: ManageEngine OpManager, SolarWinds Network Performance Monitor, Zabbix
MiniMax M2.5ManageEngine OpManager, Paessler's PRTG Network Monitor alternatives: Zabbix
GPT-6 LunaAuvik alternatives: LogicMonitor, Paessler PRTG Network Monitor, Site24x7
Muse Glimmer 30BManageEngine OpManager alternatives: Auvik, Datadog Network Monitoring, LogicMonitor, Progress WhatsUp Gold, Site24x7, SolarWinds Network Performance Monitor
Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.
By buyer segment
The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
Mid-marketThe figures above
The order flips: LibreNMS leads at mid-market.
LibreNMS6%#5 of 12Nagios4%#7 of 12Enterprise
LibreNMS is not named for this buyer.
LibreNMS—not namedNagios0%#12 of 12What the models said about LibreNMS
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Four of five in this category shown.
“open-source is usually a poor fit for mid-market teams” Gemini 3.5 Flash · direct prompt · hard negative
“I'd start with LibreNMS. It's free and open source, with automatic device discovery, SNMP-based monitoring, alerting” GPT-6 Luna · budget prompt · first choice
“Start with LibreNMS if you want quick wins, or Zabbix if you want a long-term, scalable solution” Kimi K2 · budget prompt · first choice
“Zabbix (robust, but requires setup) or LibreNMS (very easy to start)” Qwen 3.7 Flash · negative prompt · first choice
What the models said about Nagios
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Four of five in this category shown.
“Nagios: Steer clear if you're not a highly technical user.” Grok 4.1 Fast · negative prompt · hard negative
“often an open-source option like Zabbix or Nagios Core, as they provide robust features at zero licensing cost” Grok 4.1 Fast · budget prompt · first choice
“For most small businesses, Zabbix and Nagios Core are the top free choices” Mistral Small · budget prompt · first choice
“Nagios Xi - a broad network and infrastructure monitoring tool with sensor-level control, suitable for mid-market IT teams.” Llama 4 Maverick · direct prompt · alternative
Also compared
Auvik vs LibreNMSAuvik vs NagiosManageEngine OpManager vs LibreNMSManageEngine OpManager vs NagiosZabbix vs LibreNMSZabbix vs NagiosPaessler PRTG Network Monitor vs LibreNMSPaessler PRTG Network Monitor vs NagiosLibreNMS vs Datadog Network MonitoringLibreNMS vs LogicMonitorDatadog Network Monitoring vs NagiosNagios vs LogicMonitorAll twenty-eight head-to-head pages and the full network monitoring standing
Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.