Gatling, k6, and Locust were each named in all 6 of the 6 answers we recorded for load testing tools: no matter how we phrased the question, ChatGPT and Gemini returned those three every time.
We ran this on 2026-08-04. Six buyer questions went to ChatGPT and Gemini, one live web search each, and we logged every product named and every source domain behind the replies. Only those two assistants were queried, so this page describes what ChatGPT and Gemini say about load testing tools, and nothing about any other assistant.
JMeter was the clear fourth name, appearing in 4 of the 6 answers as "JMeter" and in another 2 as "Apache JMeter." Because the assistants used two different names for the same tool, our count keeps them separate, 4 and 2, rather than merging them into one "6 of 6." We report both exactly as measured.
After the top three the field thins out fast. Artillery was named in 3 of 6 answers (50%) and LoadNinja in 3 of 6 (50%). NeoLoad reached 2 of 6 (33%). Below that, eleven separate tools were each named in exactly 1 of the 6 answers (17% apiece), which is where most of the movement between questions happened.
How the shortlist changed from one question to the next
The three constants held no matter how we asked: k6, Gatling, and Locust each appeared in all 6 of 6 answers. Everything around them swapped with the qualifier. The bare "best load testing tools" question returned 8 names, and four of them were commercial or enterprise tools: PFLB, NeoLoad, LoadNinja, and OpenText LoadRunner. OpenText LoadRunner and PFLB were named in that one question and nowhere else.
"Best free load testing tools" returned a different set of 6, every one of them open source: Apache JMeter, k6, Gatling, Locust, Artillery, and Vegeta. The commercial names dropped out completely. Vegeta showed up here and in no other question, its only appearance across all six.
"Most affordable load testing tools" kept the open-source core but added two paid tools that "free" had excluded: BlazeMeter, named in this question only, and LoadNinja. So "affordable" and "free" are not the same question to the assistants: "free" returned 6 open-source tools, while "affordable" returned 7 that mix open source with cheaper commercial options.
The narrow, once-only names came almost entirely from a single phrasing each. "Best load testing tools for small teams" was the only question to surface Loadster and QA.tech. "What load testing tools should I use" was the only one to surface Artillery.io and The Grinder. "Load testing tools recommendations" was the only one to surface Taurus, LoadView, and WebLOAD. All eleven single-mention tools owe their entire presence to one specific wording of the question.
The lesson for anyone in this category: there is no one "best load testing tools" list to win. There are at least six different lists, and the tools on the free and affordable lists are not the tools on the enterprise-flavored bare "best" list.
The source map: who fed the answers
Three domains fed every single answer: blazemeter.com, reddit.com, and testguild.com were each cited in all 6 of 6 answers. Of those three, Reddit is the only open community forum; testguild.com is an independent testing roundup, and blazemeter.com is a vendor's own content hub. A community thread carried as much weight as the roundups did.
Below the top three, pflb.us fed 5 of 6 answers, gartner.com fed 4 of 6, qa.tech fed 4 of 6, and browserstack.com fed 3 of 6. Community and Q&A sites beyond Reddit were thin: quora.com, stackoverflow.com, and club.ministryoftesting.com each appeared in only 1 of the 6 answers.
Here is the insight that matters most if you sell one of these tools: several vendors were named because their own website fed the answer. blazemeter.com fed 6 answers and BlazeMeter the product was named. pflb.us fed 5 answers and PFLB was named. qa.tech fed 4 answers and QA.tech was named. loadninja.com fed 2 answers and LoadNinja was named in 3 of 6. loadview-testing.com fed 1 answer and LoadView was named. The assistants read these companies' own comparison pages and then recommended them. Publishing the roundup, not just having the product, is what put them in the answer.
Classic review directories barely registered. g2.com appeared in exactly 1 of the 6 answers, and Capterra did not appear at all. The one analyst that did show up was Gartner: gartner.com fed 4 of 6 answers, more than any review directory. For a category aimed at engineers, the assistants leaned on hands-on roundups, Reddit, and Gartner far more than on star-rating directories.
What you would do to get named here
If you make a load testing tool and you want ChatGPT or Gemini to name you, the source list decides it, not your market share. The three tools named in every answer, k6, Gatling, and Locust at 6 of 6, are the ones written up in the exact places the assistants read: the Reddit threads, the TestGuild roundup, the BlazeMeter and PFLB comparison posts. Get onto those specific pages and you get into the answer.
The measured path is concrete. Three sources fed 100% of these answers (blazemeter.com, reddit.com, testguild.com) and three more fed at least half (pflb.us at 5 of 6, gartner.com and qa.tech at 4 of 6). A tool missing from all six of those is very hard to surface. A tool present in them, even a newer name like QA.tech, can appear off a single strong page.
The double-labelling is worth designing for too. JMeter lost 2 of its potential 6 appearances to the alternate name "Apache JMeter," and Artillery lost 1 to "Artillery.io." When the assistants and their sources call your product by two names, your visibility splits across both. Consistent naming in the pages that get cited cost JMeter a clean 6 of 6 on paper.
The full list, counted
| Product | Named in | Share |
|---|---|---|
| Gatling | 6 of 6 | 100% |
| k6 | 6 of 6 | 100% |
| Locust | 6 of 6 | 100% |
| JMeter | 4 of 6 | 67% |
| Artillery | 3 of 6 | 50% |
| LoadNinja | 3 of 6 | 50% |
| Apache JMeter | 2 of 6 | 33% |
| NeoLoad | 2 of 6 | 33% |
Below these eight, eleven more tools were each named in 1 of the 6 answers (17%): Artillery.io, BlazeMeter, Loadster, LoadView, OpenText LoadRunner, PFLB, QA.tech, Taurus, The Grinder, Vegeta, and WebLOAD. Note the two split brands in the table: JMeter (4 of 6) and Apache JMeter (2 of 6) are the same tool under two names, as are Artillery (3 of 6) and Artillery.io (1 of 6). We report them as the assistants named them rather than summing them into totals the measurement never showed.
Glotier does not sell a load testing tool, so we are correctly absent from all 6 of these answers, and we would not expect to be in them: this is not our category. But the measurement on this page is exactly what we run for a customer's own category. We put the same kind of buyer questions to ChatGPT and Gemini, record every product and every source, and show you whether your name comes up and which pages you would need to be on to change that. If you want your own category mapped like this, the check is free, no account, and takes about a minute.