Brandwave

LangChain vs Microsoft Copilot:Which is more popular?

In September 2026, Microsoft Copilot had more branded searches than LangChain among AI agent platforms worldwide. Microsoft Copilot had about 409,000 branded searches, while LangChain had 246,000. Microsoft Copilot made up 15.6% of all AI agent platform searches we track, and LangChain accounted for 9.4%. When we asked ChatGPT and Google AI Overviews about AI agent platforms, Microsoft Copilot appeared in four of the five answers and LangChain in two. Microsoft Copilot was mentioned before LangChain in three out of four answers that named either.

Among AI agent platforms worldwide in September 2026

Who do people search for more?

Microsoft Copilot, about 66% more searches than LangChain

Microsoft Copilot 409K searchesLangChain 246K searches

Who does AI mention more?

Microsoft Copilot, mentioned in 4 of 5 answers, LangChain in 2

Microsoft Copilot in 4 of 5LangChain in 2 of 5

Who does AI recommend more?

Microsoft Copilot, named ahead of LangChain in 3 of 4 answers

Microsoft Copilot first in 3LangChain first in 1

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Top AI agent platforms in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Microsoft Copilot was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. LangChain was mentioned in two out of five: in one of the three ChatGPT answers and in one of the two Google AI Overviews. Microsoft Copilot was listed before LangChain in three out of four answers that named either.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. n8n1st
  2. OpenAI Agents SDK2nd
  3. CrewAI3rd
  4. Microsoft Copilot4th
  5. Zapier5th
  6. LangChain6th
  7. Lindy–
  8. AutoGen–
  9. Relevance AI–

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • n8n5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Microsoft Copilot4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • OpenAI Agents SDK4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Zapier3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • CrewAI3 of 5Named in 1 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • LangChain2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Lindy0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • AutoGen0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Relevance AI0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about AI agent 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 20, 2026.

Is LangChain or Microsoft Copilot more popular in search?

This chart shows how often people search Google for LangChain and Microsoft Copilot by name. Each line represents a brand's share of searches for all nine AI agent platforms we track, month by month, from English-language searches worldwide.

LangChain and Microsoft Copilot among AI agent platforms worldwide, by month

Share of searches by month for Microsoft Copilot, LangChain. The figures are in the table below the chart.

View monthly share of searches table
Monthn8nZapierMicrosoft CopilotLangChainCrewAILindyAutoGenRelevance AIOpenAI Agents SDK
Oct 202563%18.9%5.4%6.9%1.4%1.7%1.1%0.97%0.62%
Nov 202560.8%18.3%6.6%8.2%1.6%2%1.1%0.93%0.49%
Dec 202559.7%17.9%6.1%9.8%1.6%2.4%1.1%0.92%0.39%
Jan 202660.8%18.3%6.2%8.2%2%2%1.1%1.1%0.4%
Feb 202655.6%20.4%7.1%9.1%2.7%2.2%1.2%1%0.45%
Mar 202654.6%20.1%8.3%9%3.3%2.2%1.2%0.84%0.44%
Apr 202652.8%19.4%9.8%8.7%3.9%2.6%1.2%0.99%0.64%
May 202653.8%19.8%9.8%8.8%3.2%2.2%0.97%0.82%0.53%
Jun 202651.2%18.8%11.7%10.3%3.1%2.5%1.1%0.78%0.62%
Jul 202652.6%19.3%12%8.6%2.6%2.6%0.95%0.66%0.64%
Aug 202648%21.7%13.4%9.7%2.4%2.4%1.1%0.74%0.58%
Sep 202646.6%21%15.6%9.4%2.8%2.3%1%0.71%0.56%

How has the LangChain and Microsoft Copilot comparison changed over the last 12 months?

3 findings
  • The lead changed hands once in the 12 months ending September 2026: Microsoft Copilot took it in April 2026.
  • Across the 12 months ending September 2026, LangChain’s share of searches among AI agent platforms worldwide moved from 6.9% to 9.4%, and its estimated monthly branded searches moved from 301K to 246K.
  • Across the 12 months ending September 2026, Microsoft Copilot’s share of searches among AI agent platforms worldwide moved from 5.4% to 15.6%, and its estimated monthly branded searches moved from 234K to 409K.

How did search popularity change for AI agent platforms worldwide in September 2026?

2 changes

  1. In September 2026, Microsoft Copilot gained share of searches among AI agent platforms worldwide, from 13.4% to 15.6%.

  2. Estimated monthly branded searches for LangChain worldwide fell 18.3% over 12 measured months, from 301K to 246K in September 2026.

How are branded searches counted?

3 search terms

Brandwave collects information about searches that people make online using LangChain’s and Microsoft Copilot’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.

LangChain

1 branded search term

  • langchain

Microsoft Copilot

2 branded search terms

  • copilot studio
  • microsoft copilot studio

How the Brand Demand Index is measured

Other head-to-heads among AI agent platforms

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