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Buying question

When should an engineering team adopt an agent framework instead of building a tool-calling loop directly on a model API?

Which brands each model API named when asked this question, and which pages it cited. Answer text is not published.
Snapshot Sep 14, 2026. Each category is re-run in rotation, every few weeks.

Commercial

Kind of question

3

Model APIs

3

Brands named

13

Pages cited

Brands

Brands the answers named

Ordered by how many model APIs named the brand, then by mentions. A mention is not an endorsement or a position.
Rank#BrandModel APIsMentionsOwn-site citationsNamed by
1CrewAIcrewai.com110OpenAI
2LangGraph / Deep Agentslangchain.com101OpenAI
3Microsoft Agent Frameworkmicrosoft.com101Google

Model APIs

What each model API returned

One row per model API. The hash identifies the exact answer without publishing it.
Model APIModelBrands namedCitationsDomainsAnswer hash
OpenAIopenai/gpt-4o-miniLangGraph / Deep Agents · CrewAI7706b2ca23…0210a
Anthropicanthropic/claude-haiku-4-5None named00dd1d48fe…fc9b3
Googlegoogle/gemini-2.5-flashMicrosoft Agent Framework65548af730…3c0cb

Sources

Pages the answers cited

Hostnames come from the URLs the answers returned. Best position is the earliest place a page was cited in an answer.
DomainCited pageBest positionCited byCitations
langchain.comhttps://langchain.com/blog/how-to-think-about-agent-frameworks1OpenAI1
victordibia.comhttps://victordibia.com/blog/agent-execution-loop/1Google1
blogs.oracle.comhttps://blogs.oracle.com/developers/the-agent-loop-decoded-three-levels-every-agent-engineer-must-know2Google1
langfuse.comhttps://langfuse.com/blog/2025-03-19-ai-agent-comparison2OpenAI1
braintrust.devhttps://braintrust.dev/blog/agent-while-loop3Google1
chatbot.comhttps://chatbot.com/blog/ai-agent-frameworks/3OpenAI1
learn.microsoft.comhttps://learn.microsoft.com/en-us/agent-framework/workflows/human-in-the-loop4Google1
reddit.comhttps://reddit.com/r/AI_Agents/comments/1iqg6w1/framework_vs_sdk_for_ai_agents_whats_the_right/4OpenAI1
arize.comhttps://arize.com/guides/ai-agent-handbook/agent-frameworks/5OpenAI1
reddit.comhttps://reddit.com/r/AI_Agents/comments/1r1f3uu/multiagent_systems_when_should_you_use_them_vs/5Google1
pub.towardsai.nethttps://pub.towardsai.net/i-compared-6-python-ai-agent-frameworks-so-you-dont-have-to-langgraph-vs-crewai-vs-pydanticai-vs-d8a5e6e432626OpenAI1
reddit.comhttps://reddit.com/r/LangChain/comments/1u5k5ua/agent_framework_vs_llm_calling_with_tools/6Google1
towardsdatascience.comhttps://towardsdatascience.com/a-developers-guide-to-building-scalable-ai-workflows-vs-agents/7OpenAI1
Snapshots
17b304d1-ac2a-4eff-847c-74cdc49085bb
Question set
ai-agent-frameworks-2026-07-27
Benchmark version
4-ai-agent-frameworks-2026-07-27-models-64232fd32583
What is kept
Measured in Agent frameworks. Full answers are not stored or published, and no customer data is included.

See how often AI names you.

Enter your website. In about two minutes, Rank.ai asks ChatGPT, Claude and Gemini 12 questions your customers ask and grades how often they name you.

  • Your grade out of 100How often AI names you, cites your site, and how high it ranks you.
  • Who gets namedEvery competitor in the answers, most named first.
  • The pages AI readsThe sources behind each answer.
  • Three fixesWhat to fix first, with a brief for the first article.