The world of search is fundamentally changing. It’s no longer about optimizing for a single keyword; it’s about understanding the complex web of research that artificial intelligence models like ChatGPT, Perplexity AI, and Grok perform behind the scenes. This deep research process—known as the “query fan-out”—is the key to content visibility in the new AI landscape.
Welcome to the era of GPTDeepRank, the first tool designed to look inside the "artificial brain" of these large language models (LLMs) and reveal the exact content strategy you need to win.
The Secret Life of AI Search: What Are Fan-Out Queries?
When you input a query into an AI tool, the LLM often doesn’t rely solely on that single search term. Instead, it generates several related keywords—called fan-out queries—to broaden its knowledge base and formulate a comprehensive response.
These fan-out queries are essentially the additional search terms the AI uses internally to ground or confirm its answer. For content creators, this is critical: if you want your content to be used, cited, or summarized by an AI model, you must rank for these additional, related keywords as well.
The Problem with Traditional SEO Tools
Traditional SEO tools are designed to analyze user keyword volume. They ignore the agentic behavior of LLMs, which means they miss the specific, related topics the AI itself considers important during its research phase.
The challenge? Fan-outs are unstable. LLMs are non-deterministic, meaning if you ask the exact same question twice, you often get different fan-out results. In fact, research shows that 66% of fan-out keywords appeared only once across multiple runs, and only about 27% of keywords remained consistent.
Chasing these unstable individual keywords is inefficient and often fruitless.
Introducing GPTDeepRank: Optimization at the Cluster Level
GPTDeepRank solves the instability problem by focusing on the clusters—the broader, stable themes underlying the fan-out chaos.
Our tool allows you to upload the JSON code logs from your ChatGPT, Perplexity AI, Grok, or other supported AI chats. Then, using our Cluster Analysis feature, you can combine and analyze up to five JSON logs simultaneously.
This process mitigates the volatility of single fan-out results by identifying the core keywords that consistently appear across multiple AI searches.
Key Insights Backing GPTDeepRank’s Strategy:
- Semantic Alignment: Fan-out queries are highly semantically similar to the original input, typically falling between 0.75 and 0.95 of cosine similarity. This confirms that the AI is logically expanding on your input, not jumping to entirely different subjects. GPTDeepRank captures this precise expansion.
- The Power of Neighbors: Our analysis shows that 84% of fan-outs are "query neighbors" that share at least one URL with the original query's search results.
- Clustering Works: Clustering is the answer to fan-out instability. Research proves that 90% of fan-outs can be split into up to four clusters around the original query. By targeting these clusters, you build a content foundation that is less likely to be disrupted by individual keyword changes.
Stop Guessing, Start Mapping
GPTDeepRank takes the complex data from the cluster analysis and transforms it into a visual, actionable strategy: the DeepRank Cluster Map.
- Visualize Your Content Hub: The cluster map provides a clear, mindmap-style visualization of your pillar and cluster strategy, derived directly from what the AI models are searching for. You can download these maps in SVG or PNG format.
- Generate Optimized Outlines: Click on any fan-out query node within the mindmap to generate an optimized outline for immediate article creation. These outlines are structured to demonstrate the comprehensive expertise necessary to be recognized by LLMs.
- Export for Production: Export your complete content blueprints in TXT or HTML format for easy integration into your content management system (CMS).
By creating comprehensive content hubs that cover all aspects of a topic and demonstrate expertise across these related searches, you increase your content’s chances of being used by AI models.
Choose Your DeepRank Plan
| Plan Feature | Starter | Professional (Most popular) | Agency |
|---|---|---|---|
| Monthly Price | Free | $49 per month | $199 per month |
| Analysis Limit | 5 analyses/month | 100 analyses/month | 500 analyses/month |
| Extra Analysis Cost | N/A | +$0.20 per extra analysis | +$0.15 per extra analysis |
| Cluster Analysis (Max Logs) | 1 Log | Up to 3 Logs | Up to 5 Logs |
| Outline Export Format | TXT only | TXT & HTML | TXT & HTML |
| Mindmap Export Format | PNG only | PNG & SVG | PNG & SVG |
| Commercial Use License | No | Yes | Yes |
The Analogous Content Compass
Think of optimizing for AI fan-outs without GPTDeepRank like navigating a dense, dark forest with only a flashlight (your initial keyword). You can see the tree right in front of you, but you don't know the terrain around you.
GPTDeepRank acts like a powerful thermal map and compass: it doesn't just show you the path you asked for, it reveals the surrounding, interconnected network of trails (the fan-out queries and clusters) that the search engine agent is actually exploring to get a comprehensive answer. By targeting the whole clearing (the cluster), rather than just one tree, you ensure you are visible regardless of which slightly different path the AI takes on any given search.
Start Deep Ranking Your Content Now.
Ready to see what the AI is really researching—and align your content to it?