Brandwave

Braintrust vs Datadog LLM Observability:Which is more popular?

In September 2026, Braintrust had more branded searches than Datadog LLM Observability among LLM observability platforms worldwide. Braintrust had about 2,900 branded searches, while Datadog LLM Observability had 880. Braintrust made up 1.1% of all LLM observability platform searches we track, and Datadog LLM Observability accounted for 0.34%. When we asked ChatGPT and Google AI Overviews about LLM observability platforms, Datadog LLM Observability appeared in all five answers and Braintrust in three. Braintrust was mentioned before Datadog LLM Observability in three out of five answers.

Among LLM observability platforms worldwide in September 2026

Who do people search for more?

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

Braintrust 2.9K searchesDatadog LLM Observability 880 searches

Who does AI mention more?

Datadog LLM Observability, mentioned in every answer we collected

Datadog LLM Observability in 5 of 5Braintrust in 3 of 5

Who does AI recommend more?

Braintrust, named ahead of Datadog LLM Observability in 3 of 5 answers

Braintrust first in 3Datadog LLM Observability first in 2

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Top LLM observability platforms in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Datadog LLM Observability appeared in all five answers. Braintrust was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. Braintrust was listed before Datadog LLM Observability in three out of five answers.

Most recommended by AI

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

  1. Langfuse1st
  2. LangSmith2nd
  3. Arize Phoenix3rd
  4. Braintrust4th
  5. Datadog LLM Observability5th
  6. Helicone6th
  7. Lunary7th
  8. Weights & Biases8th

Mentioned by AI

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

  • Langfuse5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • LangSmith5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Arize Phoenix5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Datadog LLM Observability5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Braintrust3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Helicone2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Lunary2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Weights & Biases1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about LLM observability platforms

5 answers

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 Datadog LLM Observability more popular in search?

This chart shows how often people search Google for Braintrust and Datadog LLM Observability by name. Each line represents a brand's share of searches for all eight LLM observability platforms we track, month by month, from English-language searches worldwide.

Braintrust and Datadog LLM Observability among LLM observability platforms worldwide, by month

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

View monthly share of searches table
MonthLangfuseLangSmithWeights & BiasesArize PhoenixHeliconeLunaryBraintrustDatadog LLM Observability
Oct 202529.3%29.3%31.5%4.4%2.1%1.7%0.63%0.95%
Nov 202529.4%29.4%31.8%4.4%2.1%1.4%0.64%0.76%
Dec 202529.8%29.8%30.7%4%2.7%1.5%0.77%0.77%
Jan 202633.3%27.2%28%4.8%3%2%1.1%0.7%
Feb 202634.9%28.5%25.1%5.1%3.1%1.4%0.93%0.93%
Mar 202634.9%28.7%25.2%5.1%3.1%1.4%0.6%0.92%
Apr 202633.6%27.6%28.4%4.9%3%1.1%0.73%0.58%
May 202635.7%29.4%24.7%4.8%2.6%1.2%0.78%0.78%
Jun 202637.1%30.5%21.9%5.5%2.2%1.2%0.81%0.81%
Jul 202639.3%32.4%19.1%4.7%1.9%1.3%0.86%0.46%
Aug 202641.2%27.7%19.2%7%2%1.3%1.1%0.37%
Sep 202642.3%28.4%19.7%5.1%1.7%1.4%1.1%0.34%

How has the Braintrust and Datadog LLM Observability comparison changed over the last 12 months?

3 findings

How did search popularity change for LLM observability 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 Datadog LLM Observability worldwide fell 63.3% over 12 measured months, from 2.4K to 880 in September 2026.

How are branded searches counted?

2 search terms

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

Datadog LLM Observability

1 branded search term

  • datadog llm observability

How the Brand Demand Index is measured

Other head-to-heads among LLM observability platforms

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