What is the best tool to build agentic AI?
Asked "What is the best tool to build agentic AI?", Google AI Mode, Copilot, Gemini, ChatGPT and Perplexity named 27 distinct tools across 15 answers on September 7, 2026, and 15 of them in two or more answers.
Measured acrossGoogle AI ModeCopilotGeminiChatGPTPerplexity
15 of 27 names confirmed · named in 2 or more of 15 answers · asked September 7, 2026 · 5 engines
The best tool to build agentic AI depends on your goals, team, and constraints, with top options including LangGraph, LangChain, Microsoft Agent Framework, and OpenAI Agents SDK.
- 1CrewAInamed in 12 of 15 answers
- 2LangGraphnamed in 11 of 15 answers
- 3LlamaIndexnamed in 6 of 15 answers
- 4AutoGennamed in 6 of 15 answers
- 5OpenAI Agents SDKnamed in 5 of 15 answers
- 6Microsoft Agent Frameworknamed in 5 of 15 answers
- 7Gumloopnamed in 4 of 15 answers
- 8n8nnamed in 4 of 15 answers
- 9TrueFoundrynamed in 4 of 15 answers
- 10Microsoft Copilot Studionamed in 4 of 15 answers
- 11Relevance AInamed in 3 of 15 answers
- 12Zapiernamed in 3 of 15 answers
- 13LangChainnamed in 2 of 15 answers
- 14PydanticAInamed in 2 of 15 answers
- 15UiPathnamed in 2 of 15 answers
- 16CorvinOSnamed in 1 of 15 answersone answer
- 17Agnonamed in 1 of 15 answersone answer
- 18OpenAI Operatornamed in 1 of 15 answersone answer
- 19Claude Agent SDKnamed in 1 of 15 answersone answer
- 20Microsoft AutoGennamed in 1 of 15 answersone answer
- 21Google ADKnamed in 1 of 15 answersone answer
- 22Taskadenamed in 1 of 15 answersone answer
- 23Semantic Kernelnamed in 1 of 15 answersone answer
- 24Zapier AI Layernamed in 1 of 15 answersone answer
- 25Devinnamed in 1 of 15 answersone answer
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The full measurement
- The position each of the 5 engines gave all 27 names.
- How many of the 15 answers named each of them.
- 131 sampled observations behind this ranking, and where the engines disagree.
- Fan-out — the query each engine actually searched.
- Every citation, and the sources nobody cited.