Agent frameworks are the noisiest category in AI right now. We wanted to know whether the noise reaches the answers.
We ran fifteen buying questions through grounded search — the questions a real buyer types, not keywords — and recorded which tools the answers named and which sources they cited. 46 distinct sources, 123 citations. What follows is that data.
What AI models actually name
| Tool | Mentions |
|---|---|
| LangChain + LangGraph (also cited as LangGraph) | 15 |
| CrewAI | 14 |
| OpenAI Agents SDK | 13 |
| Microsoft Agent Framework | 12 |
| AutoGen | 10 |
| Google ADK | 10 |
| LlamaIndex (also cited as LlamaIndex Workflows) | 9 |
| Semantic Kernel | 9 |
| Mastra | 7 |
| Pydantic AI | 6 |
| Gumloop | 3 |
| Vercel AI SDK | 3 |
| smolagents | 2 |
| Activepieces | 1 |
This was the only category of seven where a single name stood alone at the top. LangChain and LangGraph, named in all 15 answers, with nothing tied alongside them. Everywhere else, models enumerated two to five names in every answer rather than picking one.
46 distinct sources, the widest spread we measured — and yet the top three still carry a third of all citations. Attention is diffuse; authority is not.
That combination is worth understanding. A crowded category does not mean citations are spread evenly. It means many pages exist and a handful are actually retrieved. Publishing more is not the strategy. Being one of the few that gets cited is.
Where the answers come from
These are the pages the models cited most. The top three carry 32% of all citations in this category, and Reddit threads carry 22% across 11 separate discussions.
Method
Fifteen buying questions, run through grounded search on 3 September 2026:
What are the best AI Agent Frameworks brands? · Which AI Agent Frameworks should I buy? · Best AI Agent Frameworks for beginners · Most trusted AI Agent Frameworks brands and why · Compare the top AI Agent Frameworks brands · What AI Agent Frameworks do experts recommend? · Best value AI Agent Frameworks · Which AI Agent Frameworks brands have the best reviews? · Top rated AI Agent Frameworks 2026 · What should I look for when choosing AI Agent Frameworks? · Alternatives to the most popular AI Agent Frameworks · Is there a better option than the leading AI Agent Frameworks brand? · What do people on Reddit recommend for AI Agent Frameworks? · Best AI Agent Frameworks for small businesses · What's the highest rated AI Agent Frameworks right now?
Every answer carries citations. We recorded all of them and ranked by frequency.
What this does not do. We did not test these tools, run trials, or compare features hands-on. Plenty of roundups claim they did. We measured which tools AI models recommend and which sources those recommendations came from — a different question, and the one that matters if your goal is being recommended rather than choosing.
Reproducibility. Ask the same questions again and substantially the same sources come back. In our testing, two independent runs of a category minutes apart returned the same URLs in the same order.
This is one of seven categories we mapped the same way. Across all seven, Reddit carried 16-27% of citations and the top three sources carried 29-33% — every single time.
This source map was made with Mayin.
Every number above came from running real buying questions through grounded search and recording what the answers cited. You can get the same map for your own category and brand in about 15 minutes, for $49 — one payment, no subscription, delivered in Telegram.