Brandwave

Mabl vs Promptfoo:Which is more popular?

In September 2026, Promptfoo had more branded searches than Mabl among AI testing tools worldwide. Promptfoo had about 22,200 branded searches, while Mabl had 6,600. Promptfoo made up 16.2% of all AI testing tool searches we track, and Mabl accounted for 4.8%. When we asked ChatGPT and Google AI Overviews about AI testing tools, Mabl appeared in three of the five answers and Promptfoo in two. Mabl and Promptfoo were each mentioned first in two of the four answers.

Among AI testing tools worldwide in September 2026

Who do people search for more?

Promptfoo, about 3 searches for every 1 for Mabl

Promptfoo 22.2K searchesMabl 6.6K searches

Who does AI mention more?

Mabl, mentioned in 3 of 5 answers, Promptfoo in 2

Mabl in 3 of 5Promptfoo in 2 of 5

Who does AI recommend more?

Each is named first in 2 of 4 answers.

Mabl first in 2Promptfoo first in 2

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Top AI testing tools in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Mabl was mentioned in three out of five: in one of the three ChatGPT answers and in both Google AI Overviews. Promptfoo was mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. Mabl and Promptfoo were each listed first in two of the four answers.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. DeepEval1st
  2. Promptfoo2nd
  3. Momentic3rd
  4. Mabl4th
  5. Testim5th
  6. Applitools6th
  7. LangSmith7th
  8. QA Wolf–

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • Mabl3 of 5Named in 1 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • LangSmith2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Promptfoo2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • DeepEval2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Testim2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Momentic2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Applitools1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • QA Wolf0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about AI testing tools

5 answers

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in the United States on October 20, 2026.

Is Mabl or Promptfoo more popular in search?

This chart shows how often people search Google for Mabl and Promptfoo by name. Each line represents a brand's share of searches for all eight AI testing tools we track, month by month, from English-language searches worldwide.

Mabl and Promptfoo among AI testing tools worldwide, by month

Share of searches by month for Promptfoo, Mabl. The figures are in the table below the chart.

View monthly share of searches table
MonthLangSmithPromptfooDeepEvalApplitoolsMablTestimMomenticQA Wolf
Oct 202555.9%7.5%9.1%5%7.5%9.1%1.8%4%
Nov 202554.5%8.9%8.9%4.9%7.3%8.9%2.7%3.9%
Dec 202556.9%9.3%9.3%5.1%6.2%7.6%2.2%3.3%
Jan 202649.8%10%10%10%6.7%8.1%2%3.6%
Feb 202652.2%10.4%10.4%5.7%7%8.5%2%3.7%
Mar 202640.7%33.3%6.7%3.6%5.4%5.4%2%2.9%
Apr 202652.5%15.7%8.6%4.7%5.7%7%2.1%3.6%
May 202657.5%14.1%9.4%3.4%5.2%5.2%1.8%3.4%
Jun 202656.1%13.8%11.2%2.7%5%5%2.2%3.9%
Jul 202657.9%14.2%11.6%2.8%4.2%4.2%2.3%2.8%
Aug 202654%16.2%13.2%2.6%4.8%3.9%2.6%2.6%
Sep 202654%16.2%10.8%4.8%4.8%3.9%3.2%2.2%

How has the Mabl and Promptfoo comparison changed over the last 12 months?

3 findings
  • Promptfoo was ahead of Mabl in every measured month of the 12 months ending September 2026.
  • Across the 12 months ending September 2026, Mabl’s share of searches among AI testing tools worldwide moved from 7.5% to 4.8%, and its estimated monthly branded searches moved from 9.9K to 6.6K.
  • Across the 12 months ending September 2026, Promptfoo’s share of searches among AI testing tools worldwide moved from 7.5% to 16.2%, and its estimated monthly branded searches moved from 9.9K to 22.2K.

How did search popularity change for AI testing tools worldwide in September 2026?

3 changes
  1. In September 2026, Applitools overtook Mabl and 2 others to rank 4th among AI testing tools worldwide, with 4.8% of the searches.

  2. Promptfoo’s share of searches among AI testing tools worldwide has gained ground for 3 months in a row, from 13.8% to 16.2% in September 2026.

  3. Estimated monthly branded searches for Mabl worldwide fell 33.3% over 12 measured months, from 9.9K to 6.6K in September 2026.

How are branded searches counted?

2 search terms

Brandwave collects information about searches that people make online using Mabl’s and Promptfoo’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.

Mabl

1 branded search term

  • mabl

Promptfoo

1 branded search term

  • promptfoo

How the Brand Demand Index is measured

Other head-to-heads among AI testing tools

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