Brandwave

LLM observability platforms:Which brands are most popular in search?

In August 2026, Langfuse was the most searched among LLM observability platforms worldwide, with an estimated 110K branded searches and 45.3% estimated Share of Search within this set. These are worldwide searches for English-language branded terms.

Share of Search, August 2026
  1. Langfuse45.3%
  2. LangSmith30.5%
  3. Weights & Biases20.8%
  4. Helicone2.2%
  5. Braintrust1.2%

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Share of SearchLeaderboard

Compare the platforms used to trace and evaluate language models. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.

Share of Search among LLM observability platforms worldwide, by month

Share of Search by month for Langfuse, LangSmith, Weights & Biases, Helicone. The figures are in the table below the chart.

View monthly share of search table
MonthLangfuseLangSmithWeights & BiasesHeliconeBraintrust
Oct 202531.7%31.7%33.6%2.3%0.68%
Nov 202531.7%31.7%33.6%2.3%0.68%
Dec 202531.9%31.9%32.5%2.8%0.82%
Jan 202636.1%29.5%30%3.2%1.2%
Feb 202637.8%30.9%26.9%3.4%1%
Mar 202637.8%31.1%27%3.4%0.65%
Apr 202636.1%29.7%30.2%3.2%0.79%
May 202638.4%31.6%26.3%2.8%0.84%
Jun 202640.2%33.1%23.5%2.4%0.88%
Jul 202642.2%34.7%20.2%2.1%0.92%
Aug 202645.3%30.5%20.8%2.2%1.2%
Sep 2026—————

This month’s ranking, August 2026

  1. 1.Langfuse

    45.3%

    Held 1st. 110K estimated branded searches, 0% vs prior month. Share +3.2 points.

  2. 2.LangSmith

    30.5%

    Held 2nd. 74K estimated branded searches, -18.2% vs prior month. Share -4.2 points.

  3. 3.Weights & Biases

    20.8%

    Held 3rd. 50.4K estimated branded searches, -4.2% vs prior month. Share +0.6 points.

  4. 4.Helicone

    2.2%

    Held 4th. 5.4K estimated branded searches, 0% vs prior month. Share +0.2 points.

  5. 5.Braintrust

    1.2%

    Held 5th. 2.9K estimated branded searches, +20.8% vs prior month. Share +0.3 points.

Compare search popularity between leading brands

Which brand is most popular in search among LLM observability platforms worldwide?

In August 2026, Langfuse was the most searched among LLM observability platforms worldwide, with an estimated 110K branded searches and 45.3% estimated Share of Search within this set. LangSmith is in 2nd place, 14.8 percentage points behind at 30.5% Share of Search.

Global LLM observability platforms, last 12 months ending September 2026
BrandShare of SearchPeakLowRank
Langfuse31.7% → 45.3%45.3%Aug 202631.7%Oct 20252nd → 1st
LangSmith31.7% → 30.5%34.7%Jul 202629.5%Jan 20263rd → 2nd
Weights & Biases33.6% → 20.8%33.6%Oct 202520.2%Jul 20261st → 3rd
Helicone2.3% → 2.2%3.4%Mar 20262.1%Jul 20264th
Braintrust0.68% → 1.2%1.2%Aug 20260.65%Mar 20265th

Each finding as a sentence

  • Across the 11 months ending August 2026, Langfuse’s estimated Share of Search among LLM observability platforms worldwide increased from 31.7% to 45.3%.
  • Across the 11 months ending August 2026, LangSmith’s estimated Share of Search among LLM observability platforms worldwide decreased from 31.7% to 30.5%.
  • Across the 11 months ending August 2026, Weights & Biases’ estimated Share of Search among LLM observability platforms worldwide decreased from 33.6% to 20.8%.
  • Across the 11 months ending August 2026, Braintrust’s estimated Share of Search among LLM observability platforms worldwide increased from 0.68% to 1.2%.
  • Across the 11 months ending August 2026, LangSmith’s estimated Share of Search among LLM observability platforms worldwide peaked at 34.7% in July 2026 and was lowest at 29.5% in January 2026.
  • Across the 11 months ending August 2026, Weights & Biases’ estimated Share of Search among LLM observability platforms worldwide peaked at 33.6% in October 2025 and was lowest at 20.2% in July 2026.
  • Across the 11 months ending August 2026, Helicone’s estimated Share of Search among LLM observability platforms worldwide peaked at 3.4% in March 2026 and was lowest at 2.1% in July 2026.
  • Across the 11 months ending August 2026, Langfuse rose from 2nd to 1st among LLM observability platforms worldwide.
  • Across the 11 months ending August 2026, LangSmith rose from 3rd to 2nd among LLM observability platforms worldwide.
  • Across the 11 months ending August 2026, Weights & Biases fell from 1st to 3rd among LLM observability platforms worldwide.
  • Across the 11 months ending August 2026, Helicone held steady: its estimated Share of Search among LLM observability platforms worldwide moved less than 0.5 percentage points.

How did search popularity change for LLM observability platforms worldwide in August 2026?

  1. In August 2026, Langfuse gained estimated Share of Search among LLM observability platforms worldwide, from 42.2% to 45.3%.

  2. In August 2026, Weights & Biases gained estimated Share of Search among LLM observability platforms worldwide, from 20.2% to 20.8%.

  3. In August 2026, LangSmith lost estimated Share of Search among LLM observability platforms worldwide, from 34.7% to 30.5%.

  4. Estimated monthly branded searches for Braintrust worldwide rose 81.3% over 11 measured months, from 1.6K to 2.9K in August 2026.

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