# HAProxy vs Azure Load Balancer: which do AI models recommend for load balancers, October 2026

IT AI Recommendation Index, October 2026 Edition, Load balancers. Three of fourteen models named HAProxy first on the direct prompt; one named Azure Load Balancer. Page: https://it-ai-index.com/network/load-balancers/haproxy-vs-azure-load-balancer/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| HAProxy | 29% | #1 of 13 | 5% | 58 | 14 of 14 |
| Azure Load Balancer | 2% | #7 of 13 | 14% | 29 | 13 of 14 |

## The direct prompt, model by model

- Perplexity Sonar: haproxy first (first choices: HAProxy) (alternatives: AWS Elastic Load Balancing, Azure Application Gateway)
- Grok 4.1 Fast: haproxy first (first choices: HAProxy, NGINX) (alternatives: AWS ALB, Azure Load Balancer, Cloudflare Load Balancing, GCP Cloud Load Balancing, Progress Kemp LoadMaster)
- Kimi K2: haproxy first (first choices: HAProxy, Progress Kemp LoadMaster) (alternatives: F5 NGINX)
- Claude Haiku 4.5: azure load balancer first (first choices: AWS Elastic Load Balancing, Azure Load Balancer, NGINX) (alternatives: Citrix ADC, F5, HAProxy)
- GPT-5.4 mini: neither first, one named (first choices: Application Load Balancer) (alternatives: Azure Load Balancer, Google Cloud's Application Load Balancer, Network Load Balancer)
- Gemini 3.5 Flash: neither first, one named (first choices: Cloudflare Load Balancing) (alternatives: AWS Elastic Load Balancing, Azure Application Gateway, HAProxy, NGINX, Progress Kemp LoadMaster)
- Mistral Small: neither first, one named (first choices: Cloudflare Load Balancing) (alternatives: HAProxy, Progress Kemp LoadMaster, VMware Avi Load Balancer)
- DeepSeek V4 Flash: neither first, one named (first choices: Progress Kemp LoadMaster) (alternatives: AWS Application Load Balancer, Cloudflare Load Balancing, HAProxy, NGINX)
- Qwen 3.7 Flash: neither first, one named (first choices: AWS Elastic Load Balancing, Azure Application Gateway, NGINX) (alternatives: Cloudflare Load Balancing, HAProxy)
- GLM 4.7 FlashX: neither first, one named (first choices: NGINX, Progress Kemp LoadMaster) (alternatives: F5 BIG-IP, HAProxy)
- MiniMax M2.5: neither first, one named (first choices: Progress Kemp LoadMaster) (alternatives: AWS Elastic Load Balancing, Azure Load Balancer, Cloudflare Load Balancing, GCP Cloud Load Balancing, NGINX)
- GPT-6 Luna: neither first, one named (first choices: AWS Application Load Balancer) (alternatives: Azure Application Gateway, Azure Load Balancer, Cloudflare Load Balancing, Google Cloud Application Load Balancer, Google Cloud Network Load Balancer)
- Muse Glimmer 30B: neither first, one named (first choices: Progress Kemp LoadMaster) (alternatives: AWS Elastic Load Balancing, Azure Load Balancer, Cloudflare Load Balancing, HAProxy, NGINX)
- Llama 4 Maverick: neither named

## What the models said about HAProxy

- "Open‑source solutions that are no longer actively maintained (e.g., very old versions of HAProxy, Nginx...) | Unpatched CVEs" (GLM 4.7 FlashX, negative prompt, soft negative)
- "consider a third-party option like F5 or HAProxy, but that adds more ops overhead" (GPT-5.4 mini, direct prompt, soft negative)
- "running them on under-powered virtual machines (like a $5/mo VPS) creates a bottleneck" (Qwen 3.7 Flash, negative prompt, soft negative)
- "If you have standard web apps or APIs: Go with HAProxy. It has the broadest adoption, most documentation, and best performance for the price (free)." (Kimi K2, budget prompt, first choice)
- "The performance leader — handles millions of requests per second with sub-millisecond latency... HAProxy is the performance benchmark." (DeepSeek V4 Flash, comparative prompt, first choice)
- "Fastest and most stable - used by GitHub, Reddit, Stack Overflow ... High-performance, mission-critical | HAProxy" (Kimi K2, comparative prompt, first choice)

## What the models said about Azure Load Balancer

- "Cloud-native load balancers (AWS ELB, Azure LB, GCP LB) ... may lack deep packet inspection, advanced routing rules, or cross-cloud consistency" (MiniMax M2.5, negative prompt, soft negative)
- "Traefik is rated higher for value, with reviewers expressing greater satisfaction with its pricing compared to Azure Load Balancer." (Muse Glimmer 30B, budget prompt, soft negative)
- "excellent within their ecosystems but can lead to vendor lock-in" (Mistral Small, negative prompt, soft negative)
- "Cloud-native load balancers (AWS ALB, Azure LB) are often the best fit" (Claude Haiku 4.5, direct prompt, first choice)
- "Azure Load Balancer for network-layer distribution, especially in Azure-native environments." (GPT-5.4 mini, direct prompt, alternative)
- "AWS Elastic Load Balancing, Azure Load Balancer, or Google Cloud Load Balancing" (MiniMax M2.5, 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.