# Infrastructure monitoring: what fourteen AI models recommend, and why, October 2026

IT AI Recommendation Index, October 2026 Edition. Page: https://it-ai-index.com/operations/infrastructure-monitoring/guide/

Fourteen AI models were asked for infrastructure monitoring tool six ways each, on behalf of a small, a mid-market and an enterprise B2B company: 252 answers, in which a judge labeled 79 products. Nine of them carry at least 10 labels and a first choice, and are ranked. This guide walks the top eight in the order the mid-market standing puts them, with what the models said for and against each, in their words. Datadog leads at 28% of first choices, and the standing is contested.

## At a glance

| # | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | Datadog | 28% | 41% | 59 |
| 2 | Zabbix | 20% | 22% | 46 |
| 3 | New Relic | 16% | 16% | 49 |
| 4 | ManageEngine OpManager | 8% | 4% | 25 |
| 5 | Site24x7 | 8% | 0% | 16 |
| 6 | Grafana | 4% | 6% | 33 |
| 7 | Paessler PRTG | 4% | 13% | 23 |
| 8 | Prometheus | 4% | 32% | 31 |

## 1. Datadog

Datadog is #1 of 9 at 28% of first choices, 59 labels, negative rate 41%. By buyer: small business #8 of 11 at 5%; mid-market #1 of 9 at 28%; enterprise #1 of 7 at 41%.

- For: "It is the go-to for SaaS B2B teams already on AWS/Azure/GCP who want rapid onboarding and SaaS management, but it is metered and can get expensive at scale." (Muse Glimmer 30B, direct prompt)
- Against: "costs escalate rapidly, with log management and APM billed separately ... making it hard to predict monthly costs" (Claude Haiku 4.5, negative prompt)

## 2. Zabbix

Zabbix is #2 of 9 at 20% of first choices, 46 labels, negative rate 22%. By buyer: small business #3 of 11 at 14%; mid-market #2 of 9 at 20%; enterprise #6 of 7 at 4%.

- For: "Zabbix – best all-in-one for traditional infrastructure ... Need one install with UI, alerting and auto-discovery and minimal ops overhead → Zabbix." (Muse Glimmer 30B, budget prompt)
- Against: "Avoid Nagios and raw Zabbix if you value speed and ease-of-use over granular control." (Qwen 3.7 Flash, negative prompt)
- Against: "Avoid Zabbix if you need modern UI and simplicity, as its user interface feels dated." (Claude Haiku 4.5, negative prompt)

## 3. New Relic

New Relic is #3 of 9 at 16% of first choices, 49 labels, negative rate 16%. By buyer: small business #7 of 11 at 5%; mid-market #3 of 9 at 16%; enterprise #4 of 7 at 6%.

- For: "Offers a simpler pricing model than Datadog... strong, unified platform that is often much easier to budget for at a 500-person scale." (Gemini 3.5 Flash, scale prompt)
- Against: "Avoid SaaS like Datadog/New Relic (start at $15+/host/month, costs explode)" (Grok 4.1 Fast, budget prompt)

## 4. ManageEngine OpManager

ManageEngine OpManager is #4 of 9 at 8% of first choices, 25 labels, negative rate 4%. By buyer: small business #11 of 11 at 2%; mid-market #4 of 9 at 8%; enterprise #7 of 7 at 2%.

- For: "A comprehensive monitoring tool that can monitor networks, servers, applications, and websites. It is suitable for mid-sized teams on a fixed budget" (Llama 4 Maverick, paraphrase prompt)
- For: "The best infrastructure monitoring tool for a company with a limited budget is ManageEngine OpManager" (Llama 4 Maverick, budget prompt)

## 5. Site24x7

Site24x7 is #5 of 9 at 8% of first choices, 16 labels, negative rate 0%. By buyer: small business #1 of 11 at 16%; mid-market #5 of 9 at 8%; enterprise unranked.

- For: "Site24x7 and ManageEngine OpManager are the top choices due to their comprehensive features, scalability, and affordability" (Mistral Small, direct prompt)

## 6. Grafana

Grafana is #6 of 9 at 4% of first choices, 33 labels, negative rate 6%. By buyer: small business #4 of 11 at 12%; mid-market #6 of 9 at 4%; enterprise unranked.

- For: "The Open-Standard / Developer-Preferred (Highly Recommend for 2026) * Grafana Cloud: Excellent for engineering-driven cultures." (Gemini 3.5 Flash, scale prompt)

## 7. Paessler PRTG

Paessler PRTG is #7 of 9 at 4% of first choices, 23 labels, negative rate 13%. By buyer: small business #2 of 11 at 14%; mid-market #7 of 9 at 4%; enterprise unranked.

- For: "PRTG - If you want a more established tool with a free version and willing to scale up later" (MiniMax M2.5, budget prompt)
- For: "the best *default* choice is usually PRTG Network Monitor" (Perplexity Sonar, direct prompt)
- Against: "Paessler PRTG is not well-suited for cloud-native or container-heavy environments." (Claude Haiku 4.5, negative prompt)
- Against: "Limited to 100 sensors in the free tier ... paid tier can get expensive ... the UI feels dated" (DeepSeek V4 Flash, negative prompt)

## 8. Prometheus

Prometheus is #8 of 9 at 4% of first choices, 31 labels, negative rate 32%. By buyer: small business #9 of 11 at 4%; mid-market #8 of 9 at 4%; enterprise unranked.

- Against: "Avoid "turnkey" open source stacks when you lack the team to maintain upgrades... an unpatched Prometheus/Grafana deployment is a liability." (Muse Glimmer 30B, negative prompt)
- Against: "Open-source tools like vanilla Prometheus, while powerful, can require significant operational expertise to scale properly." (MiniMax M2.5, negative prompt)

## Questions the record answers

**Which infrastructure monitoring tool do AI models name first most often?** Datadog, in 28% of first choices for a mid-market B2B company in the October 2026 Edition, from 59 labels. The standing is contested: the models did not settle on one product.

**Does the answer change with the size of the company?** Small business: Site24x7 at 16%. Mid-market: Datadog at 28%. Enterprise: Datadog at 41%. Each standing is computed within its segment and never pooled.

**Which framing changes the answer?** The direct, paraphrase, budget and scale framings count toward share. The product named first differs by framing: direct Datadog; paraphrase Datadog; comparative Datadog; budget-constrained Zabbix; scale-constrained Datadog; negative Prometheus + Grafana. The table above has the counts.

**How stable is one answer?** Asked again with nothing changed, the models moved their own first choice 63% of the time across the repeat sample; Across the categories asked twice, a leader's share moved 4 points at the median and the index calls a change only above 11 points.

**Where do the answers come from?** Fourteen of the fourteen models return sources. Their 73 answers here cite 900 pages; the sites cited most are motadata.com, cio.economictimes.indiatimes.com, middleware.io. The category page lists them all.

**Can a vendor pay to be on this list?** No. A product is on the record because a model named it. A vendor can claim its page, propose corrections to the vendor table and be told when its standing moves; it cannot change a label, a share or a rank, and the publisher's conflicts are disclosed on the method page.

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