--- title: "OpenAI Agents SDK vs Pydantic AI: Which is searched more?" description: "Is OpenAI Agents SDK or Pydantic AI more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the AI agent frameworks set worldwide. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time." canonical: "https://gobrandwave.com/demand/global-en/compare/openai-agents-sdk-vs-pydantic-ai" publisher: "Brandwave" --- # OpenAI Agents SDK vs Pydantic AI: Which is searched more? Is OpenAI Agents SDK or Pydantic AI more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the AI agent frameworks set worldwide. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time. ## Key facts - **Compared**: OpenAI Agents SDK and Pydantic AI - **Competitive set**: AI agent frameworks - **Market**: Global - **Month measured**: Sep 2026 - **OpenAI Agents SDK Share of Search**: 3.6% - **Pydantic AI Share of Search**: 5.4% ## Is OpenAI Agents SDK or Pydantic AI more popular in search? - In September 2026, Pydantic AI had more branded searches than OpenAI Agents SDK among AI agent frameworks worldwide. Pydantic AI had about 22,200 branded searches, while OpenAI Agents SDK had 14,800. Pydantic AI made up 5.4% of all AI agent framework searches we track, and OpenAI Agents SDK accounted for 3.6%. - Pydantic AI was ahead of OpenAI Agents SDK in every measured month of the 12 months ending September 2026. - Across the 12 months ending September 2026, OpenAI Agents SDK’s share of searches among AI agent frameworks worldwide moved from 5.1% to 3.6%, and its estimated monthly branded searches moved from 27.1K to 14.8K. - Across the 12 months ending September 2026, Pydantic AI’s share of searches among AI agent frameworks worldwide moved from 6.2% to 5.4%, and its estimated monthly branded searches moved from 33.1K to 22.2K. ## Top AI agent frameworks in ChatGPT and Google AI Overviews In three ChatGPT questions and two Google AI Overviews, OpenAI Agents SDK appeared in all five answers. Pydantic AI was mentioned in three out of five: in two of the three ChatGPT answers and in one of the two Google AI Overviews. OpenAI Agents SDK was listed before Pydantic AI in four out of five answers. Brands get a higher AI rank if they are mentioned earlier in the answers that list options. | Brand | AI rank | ChatGPT answers that named it | Google AI Overviews that named it | All answers that named it | | --- | --- | --- | --- | --- | | CrewAI | 1st | 3 of 3 | 2 of 2 | 5 of 5 | | OpenAI Agents SDK | 2nd | 3 of 3 | 2 of 2 | 5 of 5 | | Pydantic AI | 3rd | 2 of 3 | 1 of 2 | 3 of 5 | | AutoGen | 4th | 1 of 3 | 1 of 2 | 2 of 5 | | LangChain | 5th | 1 of 3 | 2 of 2 | 3 of 5 | | LlamaIndex | 6th | 3 of 3 | 0 of 2 | 3 of 5 | | Semantic Kernel | 7th | 1 of 3 | 1 of 2 | 2 of 5 | ## Every AI answer about AI agent frameworks - Asked ChatGPT "Which AI agent framework should I use?": 1. OpenAI Agents SDK, 2. CrewAI, 3. LlamaIndex - Asked ChatGPT "What are the best AI agent frameworks?": 1. OpenAI Agents SDK, 2. CrewAI, 3. Pydantic AI, 4. LlamaIndex, 5. LangChain, 6. AutoGen, 7. Semantic Kernel - Asked ChatGPT "What's the best AI agent framework for building agents?": 1. OpenAI Agents SDK, 2. CrewAI, 3. Pydantic AI, 4. LlamaIndex - Searched Google, AI Overview "ai agent framework": 1. AutoGen, 2. CrewAI, 3. Pydantic AI, 4. LangChain, 5. Semantic Kernel, 6. OpenAI Agents SDK - Searched Google, AI Overview "build ai agents": 1. CrewAI, 2. OpenAI Agents SDK, 3. LangChain Brands are listed in the order each answer named them. The answers were collected in the United States on October 20, 2026. ## How did search popularity change for AI agent frameworks worldwide in September 2026? - Estimated monthly branded searches for OpenAI Agents SDK worldwide fell 45.4% over 12 measured months, from 27.1K to 14.8K in September 2026. - Estimated monthly branded searches for Pydantic AI worldwide fell 32.9% over 12 measured months, from 33.1K to 22.2K in September 2026. ## Month by month | Month | OpenAI Agents SDK estimated searches | OpenAI Agents SDK Share of Search | OpenAI Agents SDK rank | Pydantic AI estimated searches | Pydantic AI Share of Search | Pydantic AI rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 27.1K | 5.1% | 6 | 33.1K | 6.2% | 5 | | Nov 2025 | 18.1K | 3.7% | 6 | 27.1K | 5.5% | 5 | | Dec 2025 | 12.1K | 2.6% | 6 | 27.1K | 5.8% | 5 | | Jan 2026 | 14.8K | 2.9% | 6 | 27.1K | 5.3% | 5 | | Feb 2026 | 14.8K | 2.8% | 6 | 27.1K | 5.2% | 5 | | Mar 2026 | 18.1K | 2.7% | 6 | 33.1K | 5% | 5 | | Apr 2026 | 22.2K | 3.8% | 6 | 27.1K | 4.7% | 5 | | May 2026 | 18.1K | 3.4% | 6 | 27.1K | 5% | 5 | | Jun 2026 | 18.1K | 3.5% | 6 | 27.1K | 5.3% | 5 | | Jul 2026 | 18.1K | 4.2% | 6 | 27.1K | 6.3% | 5 | | Aug 2026 | 14.8K | 3.7% | 6 | 22.2K | 5.5% | 5 | | Sep 2026 | 14.8K | 3.6% | 6 | 22.2K | 5.4% | 5 | ## How each brand is measured Brandwave collects information about searches that people make online using OpenAI Agents SDK’s and Pydantic AI’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. - **OpenAI Agents SDK**: Measured on the search term “openai agents sdk”. - **Pydantic AI**: Measured on the search term “pydantic ai”. - [OpenAI Agents SDK profile](/demand/global-en/brands/openai-agents-sdk) - [Pydantic AI profile](/demand/global-en/brands/pydantic-ai) - [All AI agent frameworks worldwide](/demand/global-en/categories/ai-agent-frameworks): The set both shares are measured inside, 7 brands. ## Methodology - [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Frequently asked questions ### Is OpenAI Agents SDK or Pydantic AI more popular in search? In September 2026, Pydantic AI had more branded searches than OpenAI Agents SDK among AI agent frameworks worldwide. Pydantic AI had about 22,200 branded searches, while OpenAI Agents SDK had 14,800. Pydantic AI made up 5.4% of all AI agent framework searches we track, and OpenAI Agents SDK accounted for 3.6%. ## Cite this page Brandwave. "OpenAI Agents SDK vs Pydantic AI: Which is searched more?". https://gobrandwave.com/demand/global-en/compare/openai-agents-sdk-vs-pydantic-ai This page is also available as HTML at https://gobrandwave.com/demand/global-en/compare/openai-agents-sdk-vs-pydantic-ai. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.