Brandwave

Datadog LLM Observability vs Fiddler:Which is more popular?

In September 2026, Fiddler had more branded searches than Datadog LLM Observability among model monitoring platforms worldwide. Fiddler had about 2,400 branded searches, while Datadog LLM Observability had 880. Fiddler made up 1.2% of all model monitoring platform searches we track, and Datadog LLM Observability accounted for 0.43%. When we asked ChatGPT and Google AI Overviews about model monitoring platforms, Fiddler appeared in four of the five answers and Datadog LLM Observability in two. Fiddler was mentioned before Datadog LLM Observability in two out of three answers that named either.

Among model monitoring platforms worldwide in September 2026

Who do people search for more?

Fiddler, about 3 searches for every 1 for Datadog LLM Observability

Fiddler 2.4K searchesDatadog LLM Observability 880 searches

Who does AI mention more?

Fiddler, mentioned in 4 of 5 answers, Datadog LLM Observability in 2

Fiddler in 4 of 5Datadog LLM Observability in 2 of 5

Who does AI recommend more?

Fiddler, named ahead of Datadog LLM Observability in 2 of 3 answers

Fiddler first in 2Datadog LLM Observability first in 1

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Top model monitoring platforms in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Fiddler was mentioned in four out of five: in two of the three ChatGPT answers and in both Google AI Overviews. Datadog LLM Observability was mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. Fiddler was listed before Datadog LLM Observability in two out of three answers that named either.

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 Datadog LLM Observability or Fiddler more popular in search?

This chart shows how often people search Google for Datadog LLM Observability and Fiddler 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.

Datadog LLM Observability and Fiddler among model monitoring platforms worldwide, by month

Share of searches by month for Fiddler, Datadog LLM Observability. 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 Datadog LLM Observability and Fiddler 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. Datadog LLM Observability’s share of searches among model monitoring platforms worldwide has lost ground for 3 months in a row, from 1.1% to 0.43% in September 2026.

  2. Estimated monthly branded searches for Fiddler worldwide fell 17.2% over 12 measured months, from 2.9K to 2.4K in September 2026.

How are branded searches counted?

2 search terms

Brandwave collects information about searches that people make online using Datadog LLM Observability’s and Fiddler’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.

Datadog LLM Observability

1 branded search term

  • datadog llm observability

Fiddler

1 branded search term

  • fiddler ai

How the Brand Demand Index is measured

Other head-to-heads among model monitoring platforms

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