OpenSearch vs Serper:Which is more popular?
In September 2026, OpenSearch had more branded searches than Serper among search API platforms worldwide. OpenSearch had about 60,500 branded searches, while Serper had 12,500. OpenSearch made up 11.8% of all search API platform searches we track, and Serper accounted for 2.4%. When we asked ChatGPT and Google AI Overviews about search API platforms, Serper appeared in three of the five answers and OpenSearch in none.
Who do people search for more?
OpenSearch, about 5 searches for every 1 for Serper
Who does AI mention more?
Serper, mentioned in 3 of 5 answers, OpenSearch in 0
Who does AI recommend more?
Serper, the only one of the two named
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Top search API platforms in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Serper was mentioned in three out of five: in one of the three ChatGPT answers and in both Google AI Overviews. OpenSearch did not appear in any of the five answers.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
- Tavily1st
- SerpApi1st
- Exa3rd
- Serper4th
- Brave Search API5th
Firecrawl6th
Algolia7th
Typesense8th
Meilisearch9th- +1 more
- OpenSearch–
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- SerpApi4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- Firecrawl3 of 5Named in 1 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- Tavily3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Brave Search API3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Exa3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Serper3 of 5Named in 1 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- Algolia1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Meilisearch1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Typesense1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- OpenSearch0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about search API platforms
5 answers
Asked ChatGPT
“Which search API platform should I use?”
Asked ChatGPT
“What are the best search API platforms?”
Asked ChatGPT
“What's the best search API platform for site search?”
Searched Google, AI Overview
“search api platform”
Searched Google, AI Overview
“best search api”
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 OpenSearch or Serper more popular in search?
This chart shows how often people search Google for OpenSearch and Serper by name. Each line represents a brand's share of searches for all 11 search API platforms we track, month by month, from English-language searches worldwide.
Share of searches by month for OpenSearch, Serper. The figures are in the table below the chart.
View monthly share of searches table
| Month | Firecrawl | Tavily | SerpApi | OpenSearch | Algolia | Brave Search API | Exa | Meilisearch | Serper | Typesense | Elastic |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 18.6% | 12.4% | 18.6% | 15.2% | 13.5% | 2.5% | 3.2% | 6.8% | 1.8% | 3.7% | 3.7% |
| Nov 2025 | 16.2% | 13.2% | 19.8% | 16.2% | 14.2% | 2.6% | 2.8% | 5.9% | 2% | 3.2% | 3.9% |
| Dec 2025 | 18.8% | 12.6% | 23% | 12.6% | 11.2% | 2.1% | 6.4% | 5.6% | 1.6% | 3.1% | 3.1% |
| Jan 2026 | 21.9% | 14.7% | 18% | 12% | 10.6% | 6.6% | 5.3% | 4.4% | 1.6% | 2.4% | 2.6% |
| Feb 2026 | 18.8% | 18.8% | 15.4% | 10.3% | 7.5% | 15.4% | 3.8% | 3.8% | 1.7% | 2.1% | 2.3% |
| Mar 2026 | 22.9% | 22.9% | 12.6% | 8.4% | 7.4% | 12.6% | 3.4% | 3.8% | 2% | 2.1% | 2% |
| Apr 2026 | 30% | 20.2% | 13.5% | 9% | 7.9% | 6% | 3.9% | 3.3% | 1.9% | 2.2% | 2% |
| May 2026 | 27.9% | 22.8% | 12.5% | 10.2% | 7.3% | 5.6% | 4.2% | 3.8% | 1.9% | 2% | 1.8% |
| Jun 2026 | 28.2% | 23.1% | 12.6% | 10.3% | 7.4% | 4.6% | 4.2% | 3.8% | 2% | 2.1% | 1.7% |
| Jul 2026 | 25.9% | 21.1% | 14.2% | 11.6% | 8.3% | 5.2% | 3.9% | 3.5% | 2.4% | 2.3% | 1.7% |
| Aug 2026 | 31.8% | 21.2% | 11.7% | 9.5% | 8.3% | 4.3% | 4.1% | 3.5% | 2% | 1.9% | 1.7% |
| Sep 2026 | 26.2% | 21.4% | 14.4% | 11.8% | 8.3% | 4.3% | 4.2% | 3.5% | 2.4% | 1.9% | 1.6% |
How has the OpenSearch and Serper comparison changed over the last 12 months?
3 findings
- OpenSearch was ahead of Serper in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, OpenSearch’s share of searches among search API platforms worldwide moved from 15.2% to 11.8%, and its estimated monthly branded searches held steady at 60.5K.
- Across the 12 months ending September 2026, Serper’s share of searches among search API platforms worldwide moved from 1.8% to 2.4%, and its estimated monthly branded searches moved from 7K to 12.5K.
How did search popularity change for search API platforms worldwide in September 2026?
2 changes
In September 2026, OpenSearch gained share of searches among search API platforms worldwide, from 9.5% to 11.8%.
Estimated monthly branded searches for Serper worldwide rose 78.6% over 12 measured months, from 7K to 12.5K in September 2026.
How are branded searches counted?
3 search terms
Brandwave collects information about searches that people make online using OpenSearch’s and Serper’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.
OpenSearch
1 branded search term
- opensearch
Serper
2 branded search terms
- serper api
- serper dev
Other head-to-heads among search API platforms
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