CrewAI vs LangChain

as AI assistants see them, week of 2026-10-19

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LangChain currently leads CrewAI by a wide margin in how AI assistants talk about agent frameworks. LangChain scores 44 overall versus CrewAI's 22, and shows up in 44 of 71 answers compared to CrewAI's 25 of 71. Both get named in every answer to "What are the best platforms for building AI agents?", but head-to-head, LangChain is named more often in 12 questions, with 8 ties and zero questions where CrewAI comes out ahead. CrewAI does hold its own on framework and open-source questions, appearing in 3 of 3 answers there, but neither tool is ever named for voice AI agents or non-technical founders.

Head to head

metric	CrewAI	LangChain
score	24	47
questions won	15	20

By assistant

CrewAI

assistant	score	named in, this week	usual spot, this week
ChatGPT	29	45% of answers	#4.3
Claude	20	40% of answers	#5.8
Gemini	not sampled this week
Perplexity	24	44% of answers	#5.6

LangChain

assistant	score	named in, this week	usual spot, this week
ChatGPT	52	70% of answers	#2.6
Claude	54	75% of answers	#3.0
Gemini	not sampled this week
Perplexity	34	50% of answers	#3.8

Where they differ

Only CrewAI gets named for

What are the best alternatives to LangChain?

Only LangChain gets named for

What's the most reliable platform to run AI agents in production?
What are the best alternatives to CrewAI?
What's the best platform to build an AI agent that connects to my company's data?
What's the best self-hosted platform for running AI agents privately?
What's the best tool to build an AI agent that answers customer emails?
What's the best way to give an AI agent memory across sessions?

More comparisons

Not sold on either?

Scores count how often each assistant names a product, weighted by position. How the score works · Full AI agent builders leaderboard