Four ETL tools tied at the top, each named in 3 of the 6 buyer questions we put to ChatGPT and Gemini on 2026-08-03: Airbyte, Apache NiFi, Fivetran and Integrate.io. No single tool was named in more than 3 of 6 answers, so an AI does not hand ETL buyers one default pick, it hands them a rotating shortlist.
Across the six answers, ChatGPT and Gemini named 33 different product names, 45 times in total, an average of 7.5 tools per answer. Four names reached 3 of 6, four more reached 2 of 6 (Apache Airflow, Hadoop, Singer and Stitch), and the remaining 25 names were each said in exactly 1 of 6 answers. Even the four leaders sat at 50%, which means a buyer who asks only one of these six questions has close to an even chance of never seeing them. This is a wide, shallow field with no consensus pick.
How the shortlist changed with the question
The single most useful finding here: none of the four category leaders showed up when we asked the plain question, "best etl tools." That one answer returned 8 names, though two of them, "IBM DataStage" and "IBM Infosphere Datastage," are the same product. It skewed hard to enterprise and legacy tools: Apache Airflow, Databricks Delta Live Tables, Informatica, Oracle Data Integrator, IBM DataStage, plus Portable.io and Zapier. Airbyte, Fivetran, Integrate.io and Apache NiFi, the four tools named most often overall, were all absent from the bare "best" answer.
Change the word "best" to "best free" and the list flips to open source. The "best free etl tools" answer named 6 tools: Airbyte, Apache Airflow, Apache NiFi, Talend Open Studio, Pentaho Data Integration (PDI) and Singer. Talend Open Studio and Pentaho Data Integration (PDI) appeared in this free answer and nowhere else across the six questions.
Ask instead for the "most affordable etl tools" and a third set appears, 8 tools: Apache NiFi, Airbyte, Airflow, Hadoop, Fivetran, Estuary, Hevo and Stitch. Estuary and Hevo surfaced only in this affordability answer. "Free" and "affordable" were not the same query to the assistants: the free answer was fully open source, while the affordable answer mixed open source with low-cost managed tools like Hevo and Estuary. Airbyte and Apache NiFi were the two names that carried across both.
The other three phrasings each pulled their own one-off names. "Best etl tools for small teams" (8 tools) was the only answer to name Dataddo, Skyvia, Stitch Data, Strata.io and Weld. "What etl tools should I use" (7 tools) was the only answer to name dbt, Domo and Talend. "Etl tools recommendations" (8 tools) was the only answer to name Matillion, SnapLogic and Qlik Talend Cloud. In all, 25 of the 33 names appeared in a single phrasing and were absent from the other five.
One caution the raw counts make visible: the assistants spell the same tool more than one way, so some of these one-off names are one product wearing two labels. Oracle Data Integrator (in the "best" answer) and Oracle Data Integrate (in the "what should I use" answer) are the same tool. Apache Airflow (2 of 6) and Airflow (1 of 6) are the same project, as are Stitch (2 of 6) and Stitch Data (1 of 6), and Pentaho Data Integration and its "(PDI)" variant. We keep them exactly as the measurement recorded them rather than sum them into a tidier number the data never produced, but a buyer reads each pair as one name.
Where the answers came from
Every one of the six answers cited Reddit. reddit.com was the only domain to appear in all 6 answers, and quora.com was close behind at 5 of 6. Community threads, not vendor marketing, were the most-cited sources in this category by a wide margin.
After the two community sites, the most-cited domains were an independent explainer and a vendor blog tied at the front: datacamp.com at 4 of 6 and fivetran.com at 4 of 6, then domo.com, integrate.io and youtube.com each at 3 of 6. Eighteen domains fed the six answers in total, and nine of them were cited only once.
Here is the insight a vendor should not miss. Two companies were cited from their own domain and named as a recommended tool in the same measurement. fivetran.com fed 4 of 6 answers and Fivetran was named in 3 of 6. integrate.io fed 3 of 6 answers and Integrate.io was named in 3 of 6. Publishing the roundup an assistant reads was not separate from being recommended by it: in this data the two moved together. Domo (domo.com cited 3 of 6, Domo named 1 of 6) and Zapier (zapier.com cited 2 of 6, Zapier named 1 of 6) show the same pattern at smaller scale.
Classic review directories barely registered. G2 appeared once, and only through its blog subdomain learn.g2.com, in 1 of 6 answers. Gartner appeared once, in 1 of 6. Capterra did not appear in any of the six answers. For these ETL questions, the assistants read Reddit and Quora threads and independent roundups far more than the directory review sites vendors usually budget for.
What this means if you sell an ETL tool
The lever is the source list, not your market share. Airbyte and Fivetran are among the best-known names in this category, yet neither was named in the plain "best etl tools" answer, because that answer was built from pages that happened to list Informatica, Oracle and IBM instead. Being named followed being on the cited page, and little else.
So the work is concrete: be present in the exact places these answers are built from. That means the Reddit and Quora threads cited in 6 of 6 and 5 of 6 answers, the independent explainers like datacamp.com at 4 of 6, and, as Fivetran and Integrate.io show, your own domain publishing the kind of comparison an assistant will quote. It also means watching which phrasing you win: a tool can own "best free" and be invisible in "most affordable," because in this data those were two different lists. None of this is fixed. The list is assembled fresh from whatever pages rank the day the question is asked, which is exactly why it is worth measuring on a schedule rather than guessing once.
The full list, counted
Share is the percent of the six answers a name appeared in.
| Product | Named in | Share |
|---|---|---|
| Airbyte | 3 of 6 | 50% |
| Apache NiFi | 3 of 6 | 50% |
| Fivetran | 3 of 6 | 50% |
| Integrate.io | 3 of 6 | 50% |
| Apache Airflow | 2 of 6 | 33% |
| Hadoop | 2 of 6 | 33% |
| Singer | 2 of 6 | 33% |
| Stitch | 2 of 6 | 33% |
| Airflow | 1 of 6 | 17% |
Airflow (1 of 6) is the same project as Apache Airflow (2 of 6), shown on its own row because the assistants named it separately, and 24 other names also sat at 1 of 6 below this cut.
We do not sell an ETL tool, so you will not find Glotier anywhere in these results, and that is the correct answer for us: an assistant fielding "best etl tools" has no reason to name a tool that is not one. What you just read is the whole of what we do, pointed at someone else's category. We ask ChatGPT and Gemini the questions your buyers actually type, then record who gets named and which pages the answer was built from. You can run this same check on "ETL tools," or on your own product's category, in about a minute, free, with no account. The interesting part is rarely whether you are named, it is which of the six questions names you, and which page you would need to be on to change that.