# Datadog vs Paessler PRTG: which do AI models recommend for infra monitoring, October 2026

IT AI Recommendation Index, October 2026 Edition, Infrastructure monitoring. Six of fourteen models named Datadog first on the direct prompt; one named Paessler PRTG. Page: https://it-ai-index.com/operations/infrastructure-monitoring/datadog-vs-paessler-prtg/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Datadog | 28% | #1 of 13 | 41% | 59 | 14 of 14 |
| Paessler PRTG | 4% | #7 of 13 | 13% | 23 | 10 of 14 |

## The direct prompt, model by model

- GPT-5.4 mini: datadog first (first choices: Datadog) (alternatives: Dynatrace, Grafana, New Relic)
- Qwen 3.7 Flash: datadog first (first choices: Datadog) (alternatives: Grafana, Middleware.io, Paessler PRTG, Prometheus + Grafana, Zabbix)
- GLM 4.7 FlashX: datadog first (first choices: Datadog, Grafana) (alternatives: Dynatrace, ManageEngine OpManager, New Relic)
- MiniMax M2.5: datadog first (first choices: Datadog) (alternatives: ManageEngine OpManager, Prometheus + Grafana, Sematext)
- GPT-6 Luna: datadog first (first choices: Datadog) (alternatives: Grafana, New Relic)
- Muse Glimmer 30B: datadog first (first choices: Datadog) (alternatives: LogicMonitor, ManageEngine OpManager, Paessler PRTG, Prometheus + Grafana, Site24x7, Zabbix)
- Perplexity Sonar: paessler prtg first (first choices: Paessler PRTG) (alternatives: Datadog, ManageEngine OpManager, New Relic, Site24x7, Zabbix)
- Grok 4.1 Fast: neither first, one named (first choices: New Relic) (alternatives: Datadog, ManageEngine OpManager, Site24x7)
- Kimi K2: neither first, one named (first choices: LogicMonitor) (alternatives: Better Stack, New Relic, Paessler PRTG, Site24x7)
- Claude Haiku 4.5: neither named
- Gemini 3.5 Flash: neither named (first choices: New Relic) (alternatives: Better Stack, Grafana, LogicMonitor, Site24x7)
- Mistral Small: neither named (first choices: ManageEngine OpManager, Site24x7) (alternatives: Netdata)
- DeepSeek V4 Flash: neither named (first choices: Site24x7) (alternatives: Grafana Stack, ManageEngine OpManager, New Relic)
- Llama 4 Maverick: neither named

## What the models said about Datadog

- "costs escalate rapidly, with log management and APM billed separately ... making it hard to predict monthly costs" (Claude Haiku 4.5, negative prompt, hard negative)
- "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, first choice)

## What the models said about Paessler PRTG

- "Paessler PRTG is not well-suited for cloud-native or container-heavy environments." (Claude Haiku 4.5, negative prompt, hard negative)
- "Limited to 100 sensors in the free tier ... paid tier can get expensive ... the UI feels dated" (DeepSeek V4 Flash, negative prompt, soft negative)
- "user-friendly but limits scale without buying (~$1,750 for 500 sensors)" (Grok 4.1 Fast, budget prompt, soft negative)
- "PRTG - If you want a more established tool with a free version and willing to scale up later" (MiniMax M2.5, budget prompt, first choice)
- "the best *default* choice is usually PRTG Network Monitor" (Perplexity Sonar, direct prompt, first choice)
- "Paessler PRTG is a strong alternative because it offers a free tier up to 100 sensors" (Perplexity Sonar, budget prompt, alternative)

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.