Brandwave

How popular isPromptfoo?

In September 2026, people searched for Promptfoo by name about 22,200 times worldwide, a 124.2% increase from the previous year. These searches made up 16.2% of all global AI testing tool searches, placing Promptfoo second out of eight tools. When we asked both ChatGPT and Google AI Overviews about AI testing tools, Promptfoo appeared in two of the five answers and was the second most recommended of the eight.

Search and AI answers in September 2026

Promptfoo is the second most searched of 8 competitors and the second most recommended in AI answers.

  1. LangSmithShare of searches 54%Mentioned in 2 of 5 AI answersPlace in AI recommendations 7th
  2. PromptfooShare of searches 16.2%Mentioned in 2 of 5 AI answersPlace in AI recommendations 2nd
  3. DeepEvalShare of searches 10.8%Mentioned in 2 of 5 AI answersPlace in AI recommendations 1st
  4. ApplitoolsShare of searches 4.8%Mentioned in 1 of 5 AI answersPlace in AI recommendations 6th
  5. MablShare of searches 4.8%Mentioned in 3 of 5 AI answersPlace in AI recommendations 4th

+3 more

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Top AI testing tools in ChatGPT and Google AI Overviews

In three ChatGPT questions and two 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. Promptfoo is the second most recommended of the eight.

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.

Which AI testing tools compete with Promptfoo?

Promptfoo against AI testing tools worldwide, by month

Share of searches by month for LangSmith, Promptfoo, DeepEval, Applitools, Mabl, Testim, Momentic, QA Wolf. 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%

  1. 1.LangSmith

    54%

    Held 1st. 74K estimated branded searches, 0% vs prior month. Share +0.1 points.

  2. 2.Promptfoo

    16.2%

    Held 2nd. 22.2K estimated branded searches, 0% vs prior month. Share 0 points.

  3. 3.DeepEval

    10.8%

    Held 3rd. 14.8K estimated branded searches, -18.2% vs prior month. Share -2.4 points.

  4. 4.Applitools

    4.8%

    Moved from 7th to 4th. 6.6K estimated branded searches, +83.3% vs prior month. Share +2.2 points.

  5. 5.Mabl

    4.8%

    Moved from 4th to 5th. 6.6K estimated branded searches, 0% vs prior month. Share 0 points.

  6. 6.Testim

    3.9%

    Moved from 5th to 6th. 5.4K estimated branded searches, 0% vs prior month. Share 0 points.

  7. 7.Momentic

    3.2%

    Moved from 8th to 7th. 4.4K estimated branded searches, +22.2% vs prior month. Share +0.6 points.

  8. 8.QA Wolf

    2.2%

    Moved from 6th to 8th. 3K estimated branded searches, -17.4% vs prior month. Share -0.5 points.

Compare popularity between Promptfoo and its closest rivals

Every comparison with Promptfoo

15 comparisons

How has branded search demand for Promptfoo changed worldwide over the last 12 months?

4 findings
  • Across the 12 months ending September 2026, estimated monthly branded searches for Promptfoo worldwide rose from 9.9K to 22.2K.
  • Across the 12 months ending September 2026, Promptfoo’s share of searches among AI testing tools worldwide increased from 7.5% to 16.2%.
  • Across the 12 months ending September 2026, Promptfoo’s share of searches among AI testing tools worldwide peaked at 33.3% in March 2026 and was lowest at 7.5% in October 2025.
  • Across the 12 months ending September 2026, Promptfoo rose from 5th to 2nd among AI testing tools worldwide.

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

6 changes

  1. In September 2026, Momentic overtook QA Wolf to rank 7th among AI testing tools worldwide, with 3.2% of the searches.

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

  3. In September 2026, DeepEval lost share of searches among AI testing tools worldwide, from 13.2% to 10.8%.

  4. 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.

  5. QA Wolf’s share of searches among AI testing tools worldwide has lost ground for 3 months in a row, from 3.9% to 2.2% in September 2026.

  6. Estimated monthly branded searches for Testim worldwide fell 55.4% over 12 measured months, from 12.1K to 5.4K in September 2026.

How are Promptfoo’s branded searches counted?

1 search term

Brandwave collects information about searches that people make online using Promptfoo’s name. When viewed over time, estimated search volumes for this branded term can be used to understand whether interest in the brand is growing, holding steady, or fading.

  • promptfoo

Do you work for Promptfoo? To request corrections or removal please contact us via our support page and we will be happy to assist.

How the Brand Demand Index is measured

Where does Promptfoo compete?

Promptfoo is ranked in three competitor sets. Each share is worked out among that set's brands, so it differs from set to set.
Competitor setRankShare of searchesRanking
AI evaluation platforms4th of 78%Show ranking
Prompt management platforms3rd of 710.3%Show ranking
AI testing tools2nd of 816.2%Shown above
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