Network monitoring and management · October 2026 Edition
ManageEngine OpManager vs Nagios
Seven of fourteen models named ManageEngine OpManager first on the direct prompt; zero named Nagios. Both were named by all fourteen models and ManageEngine OpManager carries 35 labels and Nagios 32, so the shares are not directly comparable.
Named in seven categories this edition.
Named in two categories this edition.
First-choice share22%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#2#7A position in a field of 12; printed, not drawn.
Labels3532A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, ManageEngine OpManager reading right to left. Rank and label count are printed, not drawn.Auvik vs ManageEngine OpManager · Auvik vs Nagios · ManageEngine OpManager vs Zabbix
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.
ManageEngine OpManagerFirst choices, of fourteen modelsNagios
Direct701 against Nagios
Paraphrase20
Comparative003 against Nagios
Budget-constrained222 against Nagios
Scale-constrained10
Negative002 against ManageEngine OpManager · 8 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.
Across every category in the October 2026 Edition, ManageEngine OpManager and Nagios were named in the same answer forty-five times, of the 194 answers naming ManageEngine OpManager and the 156 naming Nagios. In those answers Nagios took the first choice zero times and ManageEngine OpManager six.
Every model, every framing
The eighty-four answers behind the chart above, one cell each: where ManageEngine OpManager 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 | | | |
ManageEngine OpManager Nagios first choice named as an alternative argued againstblank: not namedEach cell is one answer, ManageEngine OpManager on the left and Nagios on the right.The direct prompt
The plain question, one answer per model, grouped by where ManageEngine OpManager and Nagios stood in it.
ManageEngine OpManager first, Nagios not the choice
7 of 14 modelsNagios was named in the answer but not as the choice, or not at all.Claude Haiku 4.5ManageEngine OpManager, Paessler PRTG Network Monitor alternatives: Zabbix
Perplexity SonarManageEngine OpManager alternatives: Datadog Network Monitoring, Domotz, LogicMonitor
Grok 4.1 FastManageEngine OpManager alternatives: Progress WhatsUp Gold
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
MiniMax M2.5ManageEngine OpManager, Paessler's PRTG Network Monitor alternatives: Zabbix
Muse Glimmer 30BManageEngine OpManager alternatives: Auvik, Datadog Network Monitoring, LogicMonitor, Progress WhatsUp Gold, Site24x7, SolarWinds Network Performance Monitor
Neither was the first choice, one was named
4 of 14 modelsThe answer put something else first and named one of the two as an alternative.Gemini 3.5 FlashAuvik alternatives: LogicMonitor, ManageEngine OpManager, Paessler PRTG Network Monitor
Mistral SmallLogicMonitor alternatives: Datadog Network Monitoring, ManageEngine OpManager
Llama 4 MaverickDatadog Network Monitoring alternatives: Nagios, Netdata
GLM 4.7 FlashXPaessler PRTG Network Monitor alternatives: ManageEngine OpManager, SolarWinds Network Performance Monitor, Zabbix
Neither was named
3 of 14 modelsThe answer made no first choice from these two in this category.GPT-5.4 miniSolarWinds Network Performance Monitor alternatives: Datadog Network Monitoring, Paessler PRTG Network Monitor, Zabbix
DeepSeek V4 FlashAuvik alternatives: Datadog Network Monitoring, LogicMonitor, Paessler PRTG Network Monitor
GPT-6 LunaAuvik alternatives: LogicMonitor, Paessler PRTG Network Monitor, Site24x7
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
ManageEngine OpManager leads by five points.
ManageEngine OpManager7%#4 of 12Nagios2%#8 of 12Mid-marketThe figures above
ManageEngine OpManager leads by nineteen points.
ManageEngine OpManager22%#2 of 12Nagios4%#7 of 12Enterprise
ManageEngine OpManager leads by four points.
ManageEngine OpManager4%#6 of 12Nagios0%#12 of 12What the models said about ManageEngine OpManager
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Four of four in this category shown.
“Be very cautious with ManageEngine; while feature-rich and cost-effective, their historical susceptibility to remote code execution requires rigorous security hardening” Qwen 3.7 Flash · negative prompt · soft negative
“Has experienced multiple vulnerabilities including authentication bypass, remote code execution, and cross-site scripting issues” MiniMax M2.5 · negative prompt · soft negative
“ManageEngine OpManager and Progress WhatsUp Gold frequently hit the sweet spot of features vs. cost” Kimi K2 · scale prompt · first choice
“The best network monitoring tool for a company with a limited budget is ManageEngine OpManager” Llama 4 Maverick · budget 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 ManageEngine OpManagerAuvik vs NagiosManageEngine OpManager vs ZabbixManageEngine OpManager vs Paessler PRTG Network MonitorManageEngine OpManager vs LibreNMSManageEngine OpManager vs Datadog Network MonitoringManageEngine OpManager vs LogicMonitorZabbix vs NagiosPaessler PRTG Network Monitor vs NagiosLibreNMS vs NagiosDatadog 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.