RAGFlow vs Vectara:Which is more popular?
In September 2026, RAGFlow had more branded searches than Vectara among rag platforms worldwide. RAGFlow had about 14,800 branded searches, while Vectara had 1,900. RAGFlow made up 2.6% of all rag platform searches we track, and Vectara accounted for 0.33%. When we asked ChatGPT and Google AI Overviews about rag platforms, RAGFlow appeared in all five answers and Vectara in two. RAGFlow was mentioned before Vectara in four out of five answers.
Who do people search for more?
RAGFlow, about 8 searches for every 1 for Vectara
Who does AI mention more?
RAGFlow, mentioned in every answer we collected
Who does AI recommend more?
RAGFlow, named ahead of Vectara in 4 of 5 answers
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Top rag platforms in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, RAGFlow appeared in all five answers. Vectara was mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. RAGFlow was listed before Vectara in four out of five answers.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
LlamaIndex1st
LangChain2nd- LangGraph3rd
Haystack4th- RAGFlow5th
- Dify6th
Vectara7th- Azure AI Search8th
- LlamaCloud9th
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
Asked ChatGPT
“Which RAG platform should I use?”
Asked ChatGPT
“What are the best RAG platforms?”
Asked ChatGPT
“What's the best RAG platform for a development team?”
Searched Google, AI Overview
“rag platforms”
Searched Google, AI Overview
“rag software”
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 RAGFlow or Vectara more popular in search?
This chart shows how often people search Google for RAGFlow 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.
Share of searches by month for RAGFlow, Vectara. The figures are in the table below the chart.
View monthly share of searches table
| Month | LangChain | LangGraph | Dify | LlamaIndex | RAGFlow | Azure AI Search | Vectara | Ragie | LlamaCloud | Haystack |
|---|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 42.2% | 23.1% | 23.1% | 5.7% | 2.5% | 2.1% | 0.5% | 0.34% | 0.41% | 0.07% |
| Nov 2025 | 46.7% | 20.9% | 20.9% | 5.1% | 2.8% | 2.3% | 0.45% | 0.29% | 0.37% | 0.06% |
| Dec 2025 | 44.9% | 20.1% | 24.6% | 4.9% | 2.7% | 1.8% | 0.43% | 0.24% | 0.28% | 0.06% |
| Jan 2026 | 42.3% | 23.2% | 23.2% | 5.7% | 2.5% | 2.1% | 0.41% | 0.22% | 0.34% | 0.05% |
| Feb 2026 | 44.9% | 24.6% | 20.1% | 4.9% | 2.2% | 2.2% | 0.43% | 0.19% | 0.28% | 0.05% |
| Mar 2026 | 42.6% | 23.3% | 23.3% | 5.7% | 2.6% | 1.7% | 0.34% | 0.19% | 0.22% | 0.04% |
| Apr 2026 | 40.2% | 26.9% | 22.1% | 5.4% | 3% | 1.6% | 0.39% | 0.17% | 0.21% | 0.04% |
| May 2026 | 40.5% | 27% | 22.2% | 5.4% | 2.4% | 1.6% | 0.39% | 0.17% | 0.17% | 0.03% |
| Jun 2026 | 40.9% | 27.3% | 22.4% | 4.5% | 2.5% | 1.6% | 0.33% | 0.22% | 0.18% | 0.04% |
| Jul 2026 | 40% | 26.9% | 22% | 5.4% | 2.9% | 2% | 0.31% | 0.26% | 0.21% | 0.04% |
| Aug 2026 | 42.4% | 28.4% | 19% | 4.7% | 3.1% | 1.7% | 0.33% | 0.17% | 0.15% | 0.04% |
| Sep 2026 | 43% | 28.8% | 19.2% | 3.9% | 2.6% | 1.7% | 0.33% | 0.17% | 0.15% | 0.05% |
How has the RAGFlow and Vectara comparison changed over the last 12 months?
3 findings
- RAGFlow was ahead of Vectara in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, RAGFlow’s share of searches among rag platforms worldwide moved from 2.5% to 2.6%, and its estimated monthly branded searches moved from 18.1K to 14.8K.
- 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
In September 2026, RAGFlow lost share of searches among rag platforms worldwide, from 3.1% to 2.6%.
Estimated monthly branded searches for Vectara worldwide fell 47.2% over 12 measured months, from 3.6K to 1.9K in September 2026.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using RAGFlow’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.
Other head-to-heads among rag platforms
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