Brandwave

Azure AI Search vs LlamaIndex:Which is more popular?

In September 2026, LlamaIndex had more branded searches than Azure AI Search among rag platforms worldwide. LlamaIndex had about 22,200 branded searches, while Azure AI Search had 9,900. LlamaIndex made up 3.9% of all rag platform searches we track, and Azure AI Search accounted for 1.7%. When we asked ChatGPT and Google AI Overviews about rag platforms, LlamaIndex appeared in all five answers and Azure AI Search in two. LlamaIndex was mentioned before Azure AI Search in every answer.

Among rag platforms worldwide in September 2026

Who do people search for more?

LlamaIndex, about 2 searches for every 1 for Azure AI Search

LlamaIndex 22.2K searchesAzure AI Search 9.9K searches

Who does AI mention more?

LlamaIndex, mentioned in every answer we collected

LlamaIndex in 5 of 5Azure AI Search in 2 of 5

Who does AI recommend more?

LlamaIndex, named ahead of Azure AI Search in every answer

LlamaIndex first in 5Azure AI Search never first

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Top rag platforms in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, LlamaIndex appeared in all five answers. Azure AI Search was mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. LlamaIndex was listed before Azure AI Search in every answer.

Most recommended by AI

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

  1. LlamaIndex1st
  2. LangChain2nd
  3. LangGraph3rd
  4. Haystack4th
  5. RAGFlow5th
  6. Dify6th
  7. Vectara7th
  8. Azure AI Search8th
  9. LlamaCloud9th
  10. Ragie–

Mentioned by AI

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

  • LangChain5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • LlamaIndex5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • RAGFlow5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Haystack5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • LangGraph4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Dify2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Azure AI Search2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Vectara2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • LlamaCloud2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Ragie0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about rag 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 21, 2026.

Is Azure AI Search or LlamaIndex more popular in search?

This chart shows how often people search Google for Azure AI Search and LlamaIndex by name. Each line represents a brand's share of searches for all ten rag platforms we track, month by month, from English-language searches worldwide.

Azure AI Search and LlamaIndex among rag platforms worldwide, by month

Share of searches by month for LlamaIndex, Azure AI Search. The figures are in the table below the chart.

View monthly share of searches table
MonthLangChainLangGraphDifyLlamaIndexRAGFlowAzure AI SearchVectaraRagieLlamaCloudHaystack
Oct 202542.2%23.1%23.1%5.7%2.5%2.1%0.5%0.34%0.41%0.07%
Nov 202546.7%20.9%20.9%5.1%2.8%2.3%0.45%0.29%0.37%0.06%
Dec 202544.9%20.1%24.6%4.9%2.7%1.8%0.43%0.24%0.28%0.06%
Jan 202642.3%23.2%23.2%5.7%2.5%2.1%0.41%0.22%0.34%0.05%
Feb 202644.9%24.6%20.1%4.9%2.2%2.2%0.43%0.19%0.28%0.05%
Mar 202642.6%23.3%23.3%5.7%2.6%1.7%0.34%0.19%0.22%0.04%
Apr 202640.2%26.9%22.1%5.4%3%1.6%0.39%0.17%0.21%0.04%
May 202640.5%27%22.2%5.4%2.4%1.6%0.39%0.17%0.17%0.03%
Jun 202640.9%27.3%22.4%4.5%2.5%1.6%0.33%0.22%0.18%0.04%
Jul 202640%26.9%22%5.4%2.9%2%0.31%0.26%0.21%0.04%
Aug 202642.4%28.4%19%4.7%3.1%1.7%0.33%0.17%0.15%0.04%
Sep 202643%28.8%19.2%3.9%2.6%1.7%0.33%0.17%0.15%0.05%

How has the Azure AI Search and LlamaIndex comparison changed over the last 12 months?

3 findings
  • LlamaIndex was ahead of Azure AI Search in every measured month of the 12 months ending September 2026.
  • Across the 12 months ending September 2026, Azure AI Search’s share of searches among rag platforms worldwide moved from 2.1% to 1.7%, and its estimated monthly branded searches moved from 14.8K to 9.9K.
  • Across the 12 months ending September 2026, LlamaIndex’s share of searches among rag platforms worldwide moved from 5.7% to 3.9%, and its estimated monthly branded searches moved from 40.5K to 22.2K.

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

2 changes

  1. In September 2026, LlamaIndex lost share of searches among rag platforms worldwide, from 4.7% to 3.9%.

  2. Estimated monthly branded searches for Azure AI Search worldwide fell 33.1% over 12 measured months, from 14.8K to 9.9K in September 2026.

How are branded searches counted?

2 search terms

Brandwave collects information about searches that people make online using Azure AI Search’s and LlamaIndex’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.

Azure AI Search

1 branded search term

  • azure ai search

LlamaIndex

1 branded search term

  • llamaindex

How the Brand Demand Index is measured

Other head-to-heads among rag platforms

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