Brandwave

Azure AI Search vs Vectara:Which is more popular?

In September 2026, Azure AI Search had more branded searches than Vectara among rag platforms worldwide. Azure AI Search had about 9,900 branded searches, while Vectara had 1,900. Azure AI Search made up 1.7% of all rag platform searches we track, and Vectara accounted for 0.33%. When we asked ChatGPT and Google AI Overviews about rag platforms, Azure AI Search and Vectara each appeared in two of the five answers. Vectara was mentioned before Azure AI Search in two out of three answers that named either.

Among rag platforms worldwide in September 2026

Who do people search for more?

Azure AI Search, about 5 searches for every 1 for Vectara

Azure AI Search 9.9K searchesVectara 1.9K searches

Who does AI mention more?

Both were mentioned in 2 of 5 answers.

Azure AI Search in 2 of 5Vectara in 2 of 5

Who does AI recommend more?

Vectara, named ahead of Azure AI Search in 2 of 3 answers

Vectara first in 2Azure AI Search first in 1

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Top rag platforms in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Azure AI Search and Vectara were each mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. Vectara was listed before Azure AI Search in two out of three answers that named either.

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 Vectara more popular in search?

This chart shows how often people search Google for Azure AI Search and Vectara 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 Vectara among rag platforms worldwide, by month

Share of searches by month for Azure AI Search, Vectara. 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 Vectara comparison changed over the last 12 months?

3 findings
  • Azure AI Search was ahead of Vectara 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, Vectara’s share of searches among rag platforms worldwide moved from 0.5% to 0.33%, and its estimated monthly branded searches moved from 3.6K to 1.9K.

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

2 changes

  1. Estimated monthly branded searches for Vectara worldwide fell 47.2% over 12 measured months, from 3.6K to 1.9K in September 2026.

  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 Vectara’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

Vectara

1 branded search term

  • vectara

How the Brand Demand Index is measured

Other head-to-heads among rag platforms

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