--- title: "AI agent frameworks: Which brands are most popular in search?" description: "Compare the frameworks developers build AI agents with. Share of Search among LangChain, CrewAI, AutoGen, LlamaIndex and Semantic Kernel, the AI agent frameworks Brandwave compares worldwide, using the same methodology, market, and reporting period. 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." canonical: "https://gobrandwave.com/demand/global-en/categories/ai-agent-frameworks" publisher: "Brandwave" --- # AI agent frameworks: Which brands are most popular in search? Compare the frameworks developers build AI agents with. Share of Search among LangChain, CrewAI, AutoGen, LlamaIndex and Semantic Kernel, the AI agent frameworks Brandwave compares worldwide, using the same methodology, market, and reporting period. 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. ## Key facts - **Competitive set**: AI agent frameworks - **Market**: Global - **Brands compared**: 5 - **Month measured**: Aug 2026 - **Highest Share of Search**: LangChain, 67% ## 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. - 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. ## Compare search popularity between leading brands - [LangChain vs CrewAI: compare search popularity](/demand/global-en/compare/crewai-vs-langchain): 67% against 16.5% Share of Search. - [LangChain vs AutoGen: compare search popularity](/demand/global-en/compare/autogen-vs-langchain): 67% against 7.4% Share of Search. - [LangChain vs LlamaIndex: compare search popularity](/demand/global-en/compare/langchain-vs-llamaindex): 67% against 7.4% Share of Search. - [CrewAI vs AutoGen: compare search popularity](/demand/global-en/compare/autogen-vs-crewai): 16.5% against 7.4% Share of Search. - [CrewAI vs LlamaIndex: compare search popularity](/demand/global-en/compare/crewai-vs-llamaindex): 16.5% against 7.4% Share of Search. - [AutoGen vs LlamaIndex: compare search popularity](/demand/global-en/compare/autogen-vs-llamaindex): 7.4% Share of Search each. ## How did search popularity change for AI agent frameworks worldwide in August 2026? - In August 2026, LangChain gained estimated Share of Search among AI agent frameworks worldwide, from 63.4% to 67%. - In August 2026, CrewAI lost estimated Share of Search among AI agent frameworks worldwide, from 19.1% to 16.5%. - In August 2026, LlamaIndex lost estimated Share of Search among AI agent frameworks worldwide, from 8.5% to 7.4%. - In August 2026, AutoGen rose from 4th to 3rd among AI agent frameworks worldwide. - Estimated monthly branded searches for Semantic Kernel worldwide fell 63.5% over 11 measured months, from 18.1K to 6.6K in August 2026. ## Share of Search ranking | Rank | Brand | Share of Search | Estimated monthly branded searches | Change vs prior month | Owned by | | --- | --- | --- | --- | --- | --- | | 1 | LangChain | 67% | 246K | 0.0% | LangChain | | 2 | CrewAI | 16.5% | 60.5K | -18.2% | CrewAI | | 3 | AutoGen | 7.4% | 27.1K | 0.0% | Microsoft | | 4 | LlamaIndex | 7.4% | 27.1K | -18.1% | LlamaIndex | | 5 | Semantic Kernel | 1.8% | 6.6K | -18.5% | Semantic Kernel | ## Historical estimated branded-search demand | Month | Brand | Estimated monthly branded searches | Share of Search | Rank | | --- | --- | --- | --- | --- | | Oct 2025 | LangChain | 301K | 62.3% | 1 | | Oct 2025 | CrewAI | 74K | 15.3% | 2 | | Oct 2025 | AutoGen | 49.5K | 10.2% | 3 | | Oct 2025 | LlamaIndex | 40.5K | 8.4% | 4 | | Oct 2025 | Semantic Kernel | 18.1K | 3.7% | 5 | | Nov 2025 | LangChain | 301K | 67.3% | 1 | | Nov 2025 | CrewAI | 60.5K | 13.5% | 2 | | Nov 2025 | AutoGen | 40.5K | 9.1% | 3 | | Nov 2025 | LlamaIndex | 33.1K | 7.4% | 4 | | Nov 2025 | Semantic Kernel | 12.1K | 2.7% | 5 | | Dec 2025 | LangChain | 301K | 68.8% | 1 | | Dec 2025 | CrewAI | 60.5K | 13.8% | 2 | | Dec 2025 | AutoGen | 33.1K | 7.6% | 3 | | Dec 2025 | LlamaIndex | 33.1K | 7.6% | 4 | | Dec 2025 | Semantic Kernel | 9.9K | 2.3% | 5 | | Jan 2026 | LangChain | 301K | 64.3% | 1 | | Jan 2026 | CrewAI | 74K | 15.8% | 2 | | Jan 2026 | AutoGen | 40.5K | 8.7% | 3 | | Jan 2026 | LlamaIndex | 40.5K | 8.7% | 4 | | Jan 2026 | Semantic Kernel | 12.1K | 2.6% | 5 | | Feb 2026 | LangChain | 301K | 63.1% | 1 | | Feb 2026 | CrewAI | 90.5K | 19% | 2 | | Feb 2026 | AutoGen | 40.5K | 8.5% | 3 | | Feb 2026 | LlamaIndex | 33.1K | 6.9% | 4 | | Feb 2026 | Semantic Kernel | 12.1K | 2.5% | 5 | | Mar 2026 | LangChain | 368K | 59.7% | 1 | | Mar 2026 | CrewAI | 135K | 21.9% | 2 | | Mar 2026 | AutoGen | 49.5K | 8% | 3 | | Mar 2026 | LlamaIndex | 49.5K | 8% | 4 | | Mar 2026 | Semantic Kernel | 14.8K | 2.4% | 5 | | Apr 2026 | LangChain | 301K | 56.9% | 1 | | Apr 2026 | CrewAI | 135K | 25.5% | 2 | | Apr 2026 | AutoGen | 40.5K | 7.7% | 3 | | Apr 2026 | LlamaIndex | 40.5K | 7.7% | 4 | | Apr 2026 | Semantic Kernel | 12.1K | 2.3% | 5 | | May 2026 | LangChain | 301K | 60.9% | 1 | | May 2026 | CrewAI | 110K | 22.2% | 2 | | May 2026 | LlamaIndex | 40.5K | 8.2% | 3 | | May 2026 | AutoGen | 33.1K | 6.7% | 4 | | May 2026 | Semantic Kernel | 9.9K | 2% | 5 | | Jun 2026 | LangChain | 301K | 64.6% | 1 | | Jun 2026 | CrewAI | 90.5K | 19.4% | 2 | | Jun 2026 | AutoGen | 33.1K | 7.1% | 3 | | Jun 2026 | LlamaIndex | 33.1K | 7.1% | 4 | | Jun 2026 | Semantic Kernel | 8.1K | 1.7% | 5 | | Jul 2026 | LangChain | 246K | 63.4% | 1 | | Jul 2026 | CrewAI | 74K | 19.1% | 2 | | Jul 2026 | LlamaIndex | 33.1K | 8.5% | 3 | | Jul 2026 | AutoGen | 27.1K | 7% | 4 | | Jul 2026 | Semantic Kernel | 8.1K | 2.1% | 5 | | Aug 2026 | LangChain | 246K | 67% | 1 | | Aug 2026 | CrewAI | 60.5K | 16.5% | 2 | | Aug 2026 | AutoGen | 27.1K | 7.4% | 3 | | Aug 2026 | LlamaIndex | 27.1K | 7.4% | 4 | | Aug 2026 | Semantic Kernel | 6.6K | 1.8% | 5 | | Sep 2026 | AutoGen | — | — | — | | Sep 2026 | CrewAI | — | — | — | | Sep 2026 | LangChain | — | — | — | | Sep 2026 | LlamaIndex | — | — | — | | Sep 2026 | Semantic Kernel | — | — | — | ## What is being compared - **AutoGen**: Measured on the search term “autogen”. - **CrewAI**: Measured on the search term “crewai”. - **LangChain**: Measured on the search term “langchain”. - **LlamaIndex**: Measured on the search term “llamaindex”. - **Semantic Kernel**: Measured on the search term “semantic kernel”. - [AutoGen](/demand/global-en/brands/autogen) - [CrewAI](/demand/global-en/brands/crewai) - [LangChain](/demand/global-en/brands/langchain) - [LlamaIndex](/demand/global-en/brands/llamaindex) - [Semantic Kernel](/demand/global-en/brands/semantic-kernel) ## Methodology - [How is branded search demand measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Frequently asked questions ### 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. These are worldwide searches for English-language branded terms. ## Cite this page Brandwave. "AI agent frameworks: Which brands are most popular in search?". https://gobrandwave.com/demand/global-en/categories/ai-agent-frameworks This page is also available as HTML at https://gobrandwave.com/demand/global-en/categories/ai-agent-frameworks. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.