pgvector vs Qdrant:Which is more popular?
In September 2026, Qdrant had more branded searches than pgvector among vector search platforms worldwide. Qdrant had about 54,900 branded searches, while pgvector had 27,100. Qdrant made up 34% of all vector search platform searches we track, and pgvector accounted for 16.8%. When we asked ChatGPT and Google AI Overviews about vector search platforms, both pgvector and Qdrant appeared in all five answers. Qdrant was mentioned before pgvector in four out of five answers.
Who do people search for more?
Qdrant, about 2 searches for every 1 for pgvector
Who does AI mention more?
Both are mentioned in every answer we collected.
Who does AI recommend more?
Qdrant, named ahead of pgvector in 4 of 5 answers
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Top vector search platforms in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, both pgvector and Qdrant showed up in all five answers. Qdrant was listed before pgvector in four of them.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- Qdrant5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Pinecone5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
pgvector5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Weaviate5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Milvus4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Chroma3 of 5Named in 1 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Elastic0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Vespa.ai0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about vector search platforms
5 answers
Asked ChatGPT
“Which vector search platform should I use?”
Asked ChatGPT
“What are the best vector search platforms?”
Asked ChatGPT
“What's the best vector search platform for ai search apps?”
Searched Google, AI Overview
“best vector search”
Searched Google, AI Overview
“vector search engine”
Brands are shown in the order each answer named them. The survey took place in the United States on October 21, 2026.
Is pgvector or Qdrant more popular in search?
This chart shows how often people search Google for pgvector and Qdrant by name. Each line represents a brand's share of searches for all eight vector search platforms we track, month by month, from English-language searches worldwide.
Share of searches by month for Qdrant, pgvector. The figures are in the table below the chart.
View monthly share of searches table
| Month | Qdrant | Pinecone | pgvector | Milvus | Weaviate | Chroma | Elastic | Vespa.ai |
|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 34.3% | 4.9% | 14.1% | 23.3% | 12.5% | 6.3% | 3.4% | 1.2% |
| Nov 2025 | 34.2% | 4.7% | 14.1% | 23.3% | 12.4% | 6.3% | 3.4% | 1.6% |
| Dec 2025 | 37.2% | 6.2% | 15.3% | 20.7% | 10.9% | 5.6% | 3.1% | 1.1% |
| Jan 2026 | 35.8% | 8.5% | 14.7% | 20.4% | 10.5% | 5.4% | 3.6% | 1% |
| Feb 2026 | 35.1% | 12.1% | 14.2% | 19.2% | 10.3% | 5.2% | 2.9% | 0.98% |
| Mar 2026 | 34.6% | 14.6% | 14.2% | 19.3% | 8.5% | 5.2% | 2.9% | 0.81% |
| Apr 2026 | 33.6% | 13.9% | 16.6% | 18.4% | 8.1% | 6.1% | 2.7% | 0.79% |
| May 2026 | 32.9% | 16.6% | 16.2% | 18% | 7.9% | 4.9% | 2.7% | 0.92% |
| Jun 2026 | 37.9% | 19% | 15.3% | 14.2% | 6.2% | 4.6% | 2% | 0.76% |
| Jul 2026 | 36.3% | 18.2% | 14.7% | 16.2% | 6.1% | 5.4% | 2.4% | 0.83% |
| Aug 2026 | 32.3% | 19.7% | 15.9% | 17.3% | 6.4% | 4.8% | 2.6% | 0.9% |
| Sep 2026 | 34% | 20.9% | 16.8% | 14.7% | 5.5% | 5% | 2.2% | 0.92% |
How has the pgvector and Qdrant comparison changed over the last 12 months?
3 findings
- Qdrant was ahead of pgvector in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, pgvector’s share of searches among vector search platforms worldwide moved from 14.1% to 16.8%, and its estimated monthly branded searches held steady at 27.1K.
- Across the 12 months ending September 2026, Qdrant’s share of searches among vector search platforms worldwide moved from 34.3% to 34%, and its estimated monthly branded searches moved from 65.9K to 54.9K.
How did search popularity change for vector search platforms worldwide in September 2026?
2 changes
In September 2026, pgvector overtook Milvus to rank 3rd among vector search platforms worldwide, with 16.8% of the searches.
In September 2026, Qdrant gained share of searches among vector search platforms worldwide, from 32.3% to 34%.
How are branded searches counted?
3 search terms
Brandwave collects information about searches that people make online using pgvector’s and Qdrant’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 vector search platforms
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