Brandwave

Braintrust vs NannyML:Which is more popular?

In September 2026, Braintrust had more branded searches than NannyML among model monitoring platforms worldwide. Braintrust had about 2,900 branded searches, while NannyML had 320. Braintrust made up 1.4% of all model monitoring platform searches we track, and NannyML accounted for 0.16%. When we asked ChatGPT and Google AI Overviews about model monitoring platforms, Braintrust appeared in two of the five answers and NannyML in none.

Among model monitoring platforms worldwide in September 2026

Who do people search for more?

Braintrust, about 9 searches for every 1 for NannyML

Braintrust 2.9K searchesNannyML 320 searches

Who does AI mention more?

Braintrust, mentioned in 2 of 5 answers, NannyML in 0

Braintrust in 2 of 5NannyML in 0 of 5

Who does AI recommend more?

Braintrust, the only one of the two named

Braintrust first in 2NannyML never named

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Top model monitoring platforms in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Braintrust was mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. NannyML did not appear in any of the five answers.

Most recommended by AI

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

  1. Arize1st
  2. Langfuse2nd
  3. LangSmith3rd
  4. Evidently4th
  5. Fiddler5th
  6. Braintrust6th
  7. Datadog LLM Observability7th
  8. WhyLabs8th
  9. NannyML–

Mentioned by AI

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

  • Arize5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Evidently5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Fiddler4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Langfuse2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • LangSmith2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Braintrust2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Datadog LLM Observability2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • WhyLabs2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • NannyML0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about model monitoring platforms

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 21, 2026.

Is Braintrust or NannyML more popular in search?

This chart shows how often people search Google for Braintrust and NannyML by name. Each line represents a brand's share of searches for all nine model monitoring platforms we track, month by month, from English-language searches worldwide.

Braintrust and NannyML among model monitoring platforms worldwide, by month

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

View monthly share of searches table
MonthLangfuseLangSmithArizeBraintrustEvidentlyFiddlerDatadog LLM ObservabilityWhyLabsNannyML
Oct 202543.5%43.5%5.8%0.94%2.1%1.7%1.4%0.76%0.35%
Nov 202544.2%44.2%4.8%0.95%2.1%1.7%1.1%0.6%0.29%
Dec 202543.8%43.8%5.9%1.1%2.1%1.4%1.1%0.59%0.23%
Jan 202648.4%39.6%5.3%1.6%1.6%1.9%1%0.53%0.21%
Feb 202648.2%39.4%5.3%1.3%1.9%1.9%1.3%0.53%0.26%
Mar 202648.8%40.1%4.4%0.84%2%2%1.3%0.44%0.21%
Apr 202649.1%40.4%4.4%1.1%2%1.6%0.85%0.39%0.21%
May 202649%40.3%5.4%1.1%1.3%1.3%1.1%0.45%0.17%
Jun 202649.6%40.8%4.5%1.1%1.3%1.1%1.1%0.4%0.18%
Jul 202649.7%40.9%4.5%1.1%1.3%1.3%0.59%0.45%0.18%
Aug 202652.7%35.5%7.1%1.4%1.2%1.2%0.48%0.35%0.15%
Sep 202653.5%36%5.9%1.4%1.2%1.2%0.43%0.23%0.16%

How has the Braintrust and NannyML comparison changed over the last 12 months?

3 findings

How did search popularity change for model monitoring platforms worldwide in September 2026?

2 changes
  1. Estimated monthly branded searches for Braintrust worldwide rose 81.3% over 12 measured months, from 1.6K to 2.9K in September 2026.

  2. Estimated monthly branded searches for NannyML worldwide fell 45.8% over 12 measured months, from 590 to 320 in September 2026.

How are branded searches counted?

2 search terms

Brandwave collects information about searches that people make online using Braintrust’s and NannyML’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.

Braintrust

1 branded search term

  • braintrust ai

NannyML

1 branded search term

  • nannyml

How the Brand Demand Index is measured

Other head-to-heads among model monitoring platforms

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