Load balancers · November 2026 Edition
Progress Kemp LoadMaster vs A10 Thunder ADC
Three of fourteen models named Progress Kemp LoadMaster first on the direct prompt; zero named A10 Thunder ADC. Progress Kemp LoadMaster was named by six of the fourteen models and A10 Thunder ADC by ten and Progress Kemp LoadMaster carries 11 labels and A10 Thunder ADC 10, so the shares are not directly comparable.
Progress Kemp LoadMaster
accepted challengerNamed in one category this edition.
Named in one category this edition.
First-choice share12%4%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate9%0%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#4#6A position in a field of 16; printed, not drawn.
Labels1110A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Progress Kemp LoadMaster reading right to left. Rank and label count are printed, not drawn.NGINX was named alongside these two in eleven of the fourteen direct answers. HAProxy vs Progress Kemp LoadMaster · HAProxy vs A10 Thunder ADC · NGINX vs Progress Kemp LoadMaster
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 load balancers page.
By framing
How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
Progress Kemp LoadMasterFirst choices, of fourteen modelsA10 Thunder ADC
Direct30
Paraphrase32
Comparative00
Budget-constrained00
Scale-constrained00
Negative001 against Progress Kemp LoadMaster
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 Progress Kemp LoadMaster and A10 Thunder ADC stood in it.
| Model | DirectPK | ParaphrasePK | ComparativePK | Budget-constrainedPK | Scale-constrainedPK | NegativePK |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | ||||||
| GPT-5.4 mini | | |||||
| Gemini 3.5 Flash | PK | PK | ||||
| Perplexity Sonar | PK | PK | ||||
| Grok 4.20 | PK | | ||||
| Mistral Small | | |||||
| DeepSeek V4 Flash | PK | PK | PK | |||
| Llama 4 Maverick | ||||||
| Qwen 3.7 Flash | | |||||
| Kimi K2 | ||||||
| GLM 4.7 FlashX | PK | PK | ||||
| MiniMax M2.5 | | |||||
| GPT-6 Luna | ||||||
| Muse Glimmer 30B | PK |
PK Progress Kemp LoadMaster A10 Thunder ADCPK first choicePK named as an alternativePK argued againstblank: not namedEach cell is one answer, Progress Kemp LoadMaster on the left and A10 Thunder ADC on the right.
A10 Thunder ADCPK first choicePK named as an alternativePK argued againstblank: not namedEach cell is one answer, Progress Kemp LoadMaster on the left and A10 Thunder ADC on the right.The direct prompt
The plain question, one answer per model, grouped by where Progress Kemp LoadMaster and A10 Thunder ADC stood in it.
Progress Kemp LoadMaster first, A10 Thunder ADC not the choice
3 of 14 modelsA10 Thunder ADC was named in the answer but not as the choice, or not at all.Perplexity SonarProgress Kemp LoadMaster alternatives: AWS Elastic Load Balancing, Cloudflare Load Balancing, HAProxy, NGINX
DeepSeek V4 FlashHAProxy, Progress Kemp LoadMaster alternatives: NGINX
GLM 4.7 FlashXProgress Kemp LoadMaster alternatives: Cloudflare Load Balancing, HAProxy, NGINX
Neither was the first choice, one was named
3 of 14 modelsThe answer put something else first and named one of the two as an alternative.Gemini 3.5 FlashCloudflare Load Balancing alternatives: AWS Application Load Balancer, Azure Application Gateway, GCP Cloud Load Balancing, HAProxy, NGINX, Progress Kemp LoadMaster
Grok 4.20HAProxy alternatives: AWS Elastic Load Balancing (ELB) – ALB/NLB, Cloudflare Load Balancing, Loadbalancer.org Enterprise ADC, NGINX, Progress Kemp LoadMaster
Muse Glimmer 30BHAProxy alternatives: AWS Elastic Load Balancing, Azure Load Balancer, NGINX, Progress Kemp LoadMaster
Neither was named
8 of 14 modelsThe answer made no first choice from these two in this category.Claude Haiku 4.5AWS Application Load Balancer, Azure Load Balancer, Network Load Balancer alternatives: Google Cloud Load Balancing, NGINX
GPT-5.4 miniAWS Application Load Balancer alternatives: AWS Network Load Balancer, Cloudflare Load Balancing, Google Cloud Application Load Balancer
Mistral SmallNGINX alternatives: Citrix ADC, F5 BIG-IP, HAProxy, Kemp LoadMaster, Loadbalancer.org Enterprise ADC
Llama 4 MaverickNGINX alternatives: Citrix ADC, F5 BIG-IP, HAProxy, Kemp LoadMaster
Qwen 3.7 FlashNGINX alternatives: Application Load Balancer, HAProxy
Kimi K2Kemp LoadMaster alternatives: HAProxy
MiniMax M2.5no first choice alternatives: AWS Application Load Balancer, Azure Load Balancer, Citrix ADC, F5 BIG-IP, Google Cloud Load Balancing, HAProxy, NGINX
GPT-6 LunaApplication Load Balancer alternatives: Application Gateway, External Application Load Balancer, Front Door, Network Load Balancer
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
Progress Kemp LoadMaster leads by nine points.
Progress Kemp LoadMaster9%#– of 14
A10 Thunder ADC0%#– of 14Mid-marketThe figures above
Progress Kemp LoadMaster leads by eight points.
Progress Kemp LoadMaster12%#4 of 16
A10 Thunder ADC4%#6 of 16Enterprise
Progress Kemp LoadMaster leads by eight points.
Progress Kemp LoadMaster8%#4 of 16
A10 Thunder ADC0%#14 of 16What the models said about Progress Kemp LoadMaster
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Four of five in this category shown.
“CVE-2026-8037 - a pre-authentication command injection vulnerability ... Actively being exploited in attacks” GLM 4.7 FlashX · negative prompt · hard negative
“Progress Kemp LoadMaster — if you value ease of use, good security features out-of-the-box” DeepSeek V4 Flash · direct prompt · first choice
“For most mid-market B2B companies, Progress Kemp LoadMaster is the best default choice.” Perplexity Sonar · direct prompt · first choice
“Best Overall for Value, Simplicity & Hybrid IT: Progress Kemp LoadMaster” Gemini 3.5 Flash · paraphrase prompt · first choice
What the models said about A10 Thunder ADC
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Three of four in this category shown.
“F5 BIG-IP LTM or A10 Thunder ADC are top choices if you need enterprise-grade features and scalability.” Mistral Small · paraphrase prompt · first choice
“Top Recommendation: A10 Networks Thunder ADC” Qwen 3.7 Flash · paraphrase prompt · first choice
“Strong performance, but generally more complex and positioned slightly upmarket” DeepSeek V4 Flash · paraphrase prompt · alternative
Also compared
HAProxy vs Progress Kemp LoadMasterHAProxy vs A10 Thunder ADCNGINX vs Progress Kemp LoadMasterNGINX vs A10 Thunder ADCKemp LoadMaster vs Progress Kemp LoadMasterKemp LoadMaster vs A10 Thunder ADCProgress Kemp LoadMaster vs AWS Elastic Load BalancingProgress Kemp LoadMaster vs AWS Application Load BalancerProgress Kemp LoadMaster vs Cloudflare Load BalancingAWS Elastic Load Balancing vs A10 Thunder ADCA10 Thunder ADC vs AWS Application Load BalancerA10 Thunder ADC vs Cloudflare Load BalancingAll twenty-eight head-to-head pages and the full load balancers 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.