Brandwave

Evidently vs LangSmith:Which is more popular?

In September 2026, LangSmith had more branded searches than Evidently among model monitoring platforms worldwide. LangSmith had about 74,000 branded searches, while Evidently had 2,400. LangSmith made up 36% of all model monitoring platform searches we track, and Evidently accounted for 1.2%. When we asked ChatGPT and Google AI Overviews about model monitoring platforms, Evidently appeared in all five answers and LangSmith in two. Evidently and LangSmith were each mentioned first in two of the four answers.

Among model monitoring platforms worldwide in September 2026

Who do people search for more?

LangSmith, about 31 searches for every 1 for Evidently

LangSmith 74K searchesEvidently 2.4K searches

Who does AI mention more?

Evidently, mentioned in every answer we collected

Evidently in 5 of 5LangSmith in 2 of 5

Who does AI recommend more?

Each is named first in 2 of 4 answers.

Evidently first in 2LangSmith first in 2

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Top model monitoring platforms in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Evidently appeared in all five answers. LangSmith was mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. Evidently and LangSmith 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. 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 Evidently or LangSmith more popular in search?

This chart shows how often people search Google for Evidently and LangSmith 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.

Evidently and LangSmith among model monitoring platforms worldwide, by month

Share of searches by month for LangSmith, Evidently. 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 Evidently and LangSmith 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. In September 2026, LangSmith gained share of searches among model monitoring platforms worldwide, from 35.5% to 36%.

  2. Estimated monthly branded searches for Evidently worldwide fell 33.3% over 12 measured months, from 3.6K to 2.4K in September 2026.

How are branded searches counted?

2 search terms

Brandwave collects information about searches that people make online using Evidently’s and LangSmith’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.

Evidently

1 branded search term

  • evidently ai

LangSmith

1 branded search term

  • langsmith

How the Brand Demand Index is measured

Other head-to-heads among model monitoring platforms

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