Brandwave

How popular isLangSmith in search?

In September 2026, people searched for LangSmith by name about 74,000 times worldwide, about the same as the previous year. These searches made up 36% of all global model monitoring platform searches, placing LangSmith second out of nine platforms. These are worldwide searches for English-language branded terms.

Share of searches, September 2026
  1. Langfuse53.5%
  2. LangSmith36%
  3. Arize5.9%
  4. Braintrust1.4%
  5. Evidently1.2%
  6. Fiddler1.2%
  7. Datadog LLM Observability0.43%
  8. WhyLabs0.23%
  9. NannyML0.16%
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Which model monitoring platforms compete with LangSmith?

LangSmith against model monitoring platforms worldwide, by month

Share of searches by month for Langfuse, LangSmith, Arize. 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%

  1. 1.Langfuse

    53.5%

    Held 1st. 110K estimated branded searches, 0% vs prior month. Share +0.8 points.

  2. 2.LangSmith

    36%

    Held 2nd. 74K estimated branded searches, 0% vs prior month. Share +0.5 points.

  3. 3.Arize

    5.9%

    Held 3rd. 12.1K estimated branded searches, -18.2% vs prior month. Share -1.2 points.

  4. 4.Braintrust

    1.4%

    Held 4th. 2.9K estimated branded searches, 0% vs prior month. Share 0 points.

  5. 5.Evidently

    1.2%

    Held 5th. 2.4K estimated branded searches, 0% vs prior month. Share 0 points.

  6. 6.Fiddler

    1.2%

    Held 6th. 2.4K estimated branded searches, 0% vs prior month. Share 0 points.

  7. 7.Datadog LLM Observability

    0.43%

    Held 7th. 880 estimated branded searches, -12% vs prior month. Share -0.1 points.

  8. 8.WhyLabs

    0.23%

    Held 8th. 480 estimated branded searches, -33.3% vs prior month. Share -0.1 points.

  9. 9.NannyML

    0.16%

    Held 9th. 320 estimated branded searches, 0% vs prior month. Share 0 points.

Compare search popularity between LangSmith and its closest rivals

Every comparison with LangSmith

27 comparisons

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

3 findings
  • Across the 12 months ending September 2026, estimated monthly branded searches for LangSmith worldwide held steady at 74K.
  • Across the 12 months ending September 2026, LangSmith’s share of searches among model monitoring platforms worldwide decreased from 43.5% to 36%.
  • Across the 12 months ending September 2026, LangSmith’s share of searches among model monitoring platforms worldwide peaked at 44.2% in November 2025 and was lowest at 35.5% in August 2026.

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

6 changes

  1. In September 2026, Langfuse gained share of searches among model monitoring platforms worldwide, from 52.7% to 53.5%.

  2. In September 2026, LangSmith gained share of searches among model monitoring platforms worldwide, from 35.5% to 36%.

  3. In September 2026, Arize lost share of searches among model monitoring platforms worldwide, from 7.1% to 5.9%.

  4. 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.

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

  6. Estimated monthly branded searches for WhyLabs worldwide fell 63.1% over 12 measured months, from 1.3K to 480 in September 2026.

How are LangSmith’s branded searches counted?

1 search term

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

  • langsmith

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How the Brand Demand Index is measured

Where does LangSmith compete?

LangSmith is ranked in six competitor sets. Each share is worked out among that set's brands, so it differs from set to set.
Competitor setRankShare of searchesRanking
Experiment tracking platforms3rd of 811.3%Show ranking
AI evaluation platforms2nd of 726.8%Show ranking
LLM observability platforms2nd of 828.4%Show ranking
Prompt management platforms2nd of 734.2%Show ranking
Model monitoring platforms2nd of 936%Shown above
AI testing tools1st of 854%Show ranking
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