Research
Original research, benchmarks, and data-driven insights on AI search, citations, and generative engine behavior.
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The 2026 GEO Business Case: How to Measure ROI and Secure Budget for AI Search
A data-driven framework for marketing leaders to measure GEO performance, prove ROI to executives, and secure budget for AI search optimization in 2026.
The Complete Guide to GEO Metrics
The definitive guide to measuring AI visibility. Core metrics, industry benchmarks from 500+ brands, advanced insights, and actionable optimization strategies for ChatGPT, Claude, Perplexity, and other AI platforms.
Query Fan-Out: ChatGPT Runs 3.5x More Searches Than Perplexity (102K Queries Analyzed)
Analysis of 102,018 AI queries reveals the truth: query fan-out varies by provider. Perplexity: 70.5% single-query. ChatGPT: 32.7% single-query. This provider-specific behavior is the hidden factor determining who wins in AI search.
We analyzed 184,128 queries on ChatGPT, Gemini, Perplexity and Claude. Here is what we learned.
The most comprehensive study ever conducted on LLM ranking factors, analyzing 184,128 queries and 1,479,145 sources across 20 AI models including ChatGPT, Gemini, Perplexity, Claude, Mistral, DeepSeek, and Grok to help you dominate AI-generated results.
Perplexity Cites 2.8x More Sources Than ChatGPT, Only OpenAI Depends on Wikipedia
Analysis of 118K+ answers reveals dramatic differences in AI citation behavior: Perplexity averages 21.87 citations per question while ChatGPT uses 7.92, and OpenAI is the only model citing Wikipedia significantly at 4.8%.
Wikipedia Cited 16x More Than Reddit, But Represents Only 1.7% of AI Citations
Analysis of 950,000+ citations reveals specialized business content dominates AI responses at 97.5%, while Wikipedia and Reddit combined account for under 2%.
Top 18 Generative Engine Optimization Tools To Try in 2025
Traditional SEO is no longer enough. As AI-powered search engines like ChatGPT, Perplexity, and Gemini become primary sources of information, Generative Engine Optimization (GEO) is emerging as the new frontier.
How Tally.so Gets 10% of New Signups from ChatGPT: A Complete GEO Audit
Tally.so, the free online form builder, recently announced that AI search has become their biggest acquisition channel, driving the majority of their new signups.
GEO (Generative Engine Optimization) vs SEO (Search Engine Optimization): What's The Difference?
A comprehensive comparison between traditional SEO and the emerging field of GEO. Understand how to optimize for both traditional search engines and AI-powered platforms.
What is Generative Engine Optimisation? (GEO)
Generative Engine Optimisation refers to the set of strategies used to optimize your brand's presence in AI-generated answers.
We analyzed 32,961 queries on SearchGPT, Gemini and Perplexity - Q2 2025 Study
Q2 2025 study on LLM ranking factors based on 32,961 queries across three LLMs. For the latest insights, see our Q3 2025 study with 184,128 queries.