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Buying question

How should a team compare AI agent frameworks for abstraction overhead, model portability, lock-in, and debugging complexity?

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

4

Brands named

11

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
1LangGraph / Deep Agentslangchain.com202OpenAI · Google
2Mastramastra.ai202OpenAI · Google
3CrewAIcrewai.com110Google
4LlamaIndexllamaindex.ai110Google

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 · Mastra999baa4355…bacff
Anthropicanthropic/claude-haiku-4-5None named00506d6fd4…697c1
Googlegoogle/gemini-2.5-flashLangGraph / Deep Agents · LlamaIndex · CrewAI · Mastra664d209a67…0ba60

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
olostep.comhttps://olostep.com/blog/ai-agent-frameworks1OpenAI1
rank.aihttps://rank.ai/prompts/agent-framework-portability-overhead1Google1
ankursnewsletter.comhttps://ankursnewsletter.com/p/visual-vs-code-centric-ai-agent-frameworks2Google1
speakeasy.comhttps://speakeasy.com/blog/ai-agent-framework-comparison2OpenAI1
langfuse.comhttps://langfuse.com/blog/2025-03-19-ai-agent-comparison3OpenAI · Google2
mastra.aihttps://mastra.ai/articles/ai-agent-framework4OpenAI · Google2
pub.towardsai.nethttps://pub.towardsai.net/top-ai-agent-frameworks-in-2026-a-production-ready-comparison-7ba5e39ad56d4OpenAI1
monday.comhttps://monday.com/blog/ai-agents/ai-agent-frameworks/5OpenAI · Google2
mindstudio.aihttps://mindstudio.ai/blog/portable-ai-agent-stack-avoid-platform-lock-in5OpenAI1
langchain.comhttps://langchain.com/resources/ai-agent-frameworks6OpenAI · Google2
youtube.comhttps://youtube.com/watch?v=ozu7evLZcGE9OpenAI1
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.