LangGraph vs LlamaIndex:Which is more popular?
In September 2026, LangGraph had more branded searches than LlamaIndex among rag platforms worldwide. LangGraph had about 165,000 branded searches, while LlamaIndex had 22,200. LangGraph made up 28.8% of all rag platform searches we track, and LlamaIndex accounted for 3.9%. When we asked ChatGPT and Google AI Overviews about rag platforms, LlamaIndex appeared in all five answers and LangGraph in four. LlamaIndex was mentioned before LangGraph in every answer.
Who do people search for more?
LangGraph, about 7 searches for every 1 for LlamaIndex
Who does AI mention more?
LlamaIndex, mentioned in every answer we collected
Who does AI recommend more?
LlamaIndex, named ahead of LangGraph in every answer
Follow LangGraph vs LlamaIndex and get free monthly updates on what changed
By continuing you'll get index updates and occasional product news from Brandwave. Unsubscribe any time. Privacy
Top rag platforms in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, LlamaIndex appeared in all five answers. LangGraph was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. LlamaIndex was listed before LangGraph in every answer.
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 LangGraph or LlamaIndex more popular in search?
This chart shows how often people search Google for LangGraph 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.
Share of searches by month for LangGraph, LlamaIndex. 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 LangGraph and LlamaIndex comparison changed over the last 12 months?
3 findings
- LangGraph was ahead of LlamaIndex in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, LangGraph’s share of searches among rag platforms worldwide moved from 23.1% to 28.8%, and its estimated monthly branded searches held steady at 165K.
- 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?
1 change
In September 2026, LlamaIndex lost share of searches among rag platforms worldwide, from 4.7% to 3.9%.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using LangGraph’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.
LangGraph
1 branded search term
- langgraph
LlamaIndex
1 branded search term
- llamaindex
Other head-to-heads among rag platforms
Put your own brand in this comparison
Brandwave tracks your branded demand next to the rival you actually watch, with your campaigns, spend and outcomes on the same timeline.