Brandwave

AI agent frameworks:Which brands are most popular in search?

In August 2026, LangChain was the most searched among AI agent frameworks worldwide, with an estimated 246K branded searches and 67% estimated Share of Search within this set. These are worldwide searches for English-language branded terms.

Share of Search, August 2026
  1. LangChain67%
  2. CrewAI16.5%
  3. AutoGen7.4%
  4. LlamaIndex7.4%
  5. Semantic Kernel1.8%

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Share of SearchLeaderboard

Compare the frameworks developers build AI agents with. 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 AI agent frameworks worldwide, by month

Share of Search by month for LangChain, CrewAI, AutoGen, LlamaIndex. The figures are in the table below the chart.

View monthly share of search table
MonthLangChainCrewAIAutoGenLlamaIndexSemantic Kernel
Oct 202562.3%15.3%10.2%8.4%3.7%
Nov 202567.3%13.5%9.1%7.4%2.7%
Dec 202568.8%13.8%7.6%7.6%2.3%
Jan 202664.3%15.8%8.7%8.7%2.6%
Feb 202663.1%19%8.5%6.9%2.5%
Mar 202659.7%21.9%8%8%2.4%
Apr 202656.9%25.5%7.7%7.7%2.3%
May 202660.9%22.2%6.7%8.2%2%
Jun 202664.6%19.4%7.1%7.1%1.7%
Jul 202663.4%19.1%7%8.5%2.1%
Aug 202667%16.5%7.4%7.4%1.8%
Sep 2026—————

This month’s ranking, August 2026

  1. 1.LangChain

    67%

    Held 1st. 246K estimated branded searches, 0% vs prior month. Share +3.6 points.

  2. 2.CrewAI

    16.5%

    Held 2nd. 60.5K estimated branded searches, -18.2% vs prior month. Share -2.6 points.

  3. 3.AutoGen

    7.4%

    Moved from 4th to 3rd. 27.1K estimated branded searches, 0% vs prior month. Share +0.4 points.

  4. 4.LlamaIndex

    7.4%

    Moved from 3rd to 4th. 27.1K estimated branded searches, -18.1% vs prior month. Share -1.1 points.

  5. 5.Semantic Kernel

    1.8%

    Held 5th. 6.6K estimated branded searches, -18.5% vs prior month. Share -0.3 points.

Compare search popularity between leading brands

Which brand is most popular in search among AI agent frameworks worldwide?

In August 2026, LangChain was the most searched among AI agent frameworks worldwide, with an estimated 246K branded searches and 67% estimated Share of Search within this set. CrewAI is in 2nd place, 50.5 percentage points behind at 16.5% Share of Search.

Global AI agent frameworks, last 12 months ending September 2026
BrandShare of SearchPeakLowRank
LangChain62.3% → 67%68.8%Dec 202556.9%Apr 20261st
CrewAI15.3% → 16.5%25.5%Apr 202613.5%Nov 20252nd
AutoGen10.2% → 7.4%10.2%Oct 20256.7%May 20263rd
LlamaIndex8.4% → 7.4%8.7%Jan 20266.9%Feb 20264th
Semantic Kernel3.7% → 1.8%3.7%Oct 20251.7%Jun 20265th

Each finding as a sentence

  • Across the 11 months ending August 2026, LangChain’s estimated Share of Search among AI agent frameworks worldwide increased from 62.3% to 67%.
  • Across the 11 months ending August 2026, CrewAI’s estimated Share of Search among AI agent frameworks worldwide increased from 15.3% to 16.5%.
  • Across the 11 months ending August 2026, AutoGen’s estimated Share of Search among AI agent frameworks worldwide decreased from 10.2% to 7.4%.
  • Across the 11 months ending August 2026, LlamaIndex’s estimated Share of Search among AI agent frameworks worldwide decreased from 8.4% to 7.4%.
  • Across the 11 months ending August 2026, Semantic Kernel’s estimated Share of Search among AI agent frameworks worldwide decreased from 3.7% to 1.8%.
  • Across the 11 months ending August 2026, LangChain’s estimated Share of Search among AI agent frameworks worldwide peaked at 68.8% in December 2025 and was lowest at 56.9% in April 2026.
  • Across the 11 months ending August 2026, CrewAI’s estimated Share of Search among AI agent frameworks worldwide peaked at 25.5% in April 2026 and was lowest at 13.5% in November 2025.
  • Across the 11 months ending August 2026, AutoGen’s estimated Share of Search among AI agent frameworks worldwide peaked at 10.2% in October 2025 and was lowest at 6.7% in May 2026.
  • Across the 11 months ending August 2026, LlamaIndex’s estimated Share of Search among AI agent frameworks worldwide peaked at 8.7% in January 2026 and was lowest at 6.9% in February 2026.
  • Across the 11 months ending August 2026, Semantic Kernel’s estimated Share of Search among AI agent frameworks worldwide peaked at 3.7% in October 2025 and was lowest at 1.7% in June 2026.

How did search popularity change for AI agent frameworks worldwide in August 2026?

  1. In August 2026, LangChain gained estimated Share of Search among AI agent frameworks worldwide, from 63.4% to 67%.

  2. In August 2026, CrewAI lost estimated Share of Search among AI agent frameworks worldwide, from 19.1% to 16.5%.

  3. In August 2026, LlamaIndex lost estimated Share of Search among AI agent frameworks worldwide, from 8.5% to 7.4%.

  4. In August 2026, AutoGen rose from 4th to 3rd among AI agent frameworks worldwide.

  5. Estimated monthly branded searches for Semantic Kernel worldwide fell 63.5% over 11 measured months, from 18.1K to 6.6K in August 2026.

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