ChatGPT、Google AI Overview、Perplexity：應優先追蹤哪個平台？

Not all AI platforms are equal

When brands first start thinking about GEO, they often ask: "Do I need to be cited everywhere, or can I focus on one platform?" The answer depends on your audience, industry, and markets — but understanding how each platform works helps you prioritise.

ChatGPT

**User base:** The largest AI chatbot by users globally. Strong across all demographics, particularly knowledge workers, students, and tech-savvy consumers.

**How it cites:** ChatGPT's base model uses training data with a knowledge cutoff. For GEO purposes, the browsing-enabled version (ChatGPT with Search) is the one that matters — it retrieves live web content and synthesises it. Citation behaviour is similar to Perplexity.

**Best for:** Broad awareness. If someone asks "What are the best [category] brands in [city]?", ChatGPT is likely the platform they use.

**GEO tip:** Focus on entity clarity and comprehensive About/service pages. ChatGPT tends to cite brands that have clear, structured information about what they do.

Perplexity

**User base:** Skews heavily towards researchers, professionals, and power users. Particularly strong in the US, UK, and tech-forward markets.

**How it cites:** Perplexity is a pure RAG platform — it always retrieves live web content and shows explicit citations. This makes it the most measurable platform for GEO.

**Best for:** Research-intent queries. If your customers research decisions thoroughly before buying, Perplexity is crucial.

**GEO tip:** Authoritative long-form content with clear structure (H2s, bullet points, FAQs) performs best on Perplexity.

Google AI Overview

**Where it appears:** AI Overview is part of eligible Google Search result experiences, so its visibility and citations should be measured as a search-result surface rather than as a Gemini API response.

**How BeeIndex measures it:** BeeIndex uses the immediate SerpApi Google Search to Google AI Overview two-step flow. It never substitutes the Gemini API.

**Best for:** Understanding whether Google surfaces the brand or its sources inside an AI-generated search summary.

**GEO tip:** Keep entity, service, evidence, and source pages clear, then track the exact prompts and citations over time.

DeepSeek

**User base:** Rapidly growing in Mainland China, Hong Kong, and Taiwan. Particularly strong for technical and research queries.

**How it cites:** DeepSeek processes queries in Chinese and retrieves from Chinese-language sources. For HK brands, having quality Traditional Chinese content is essential.

**Best for:** HK and Taiwan market reach. Brands targeting Chinese-speaking consumers should prioritise DeepSeek visibility.

Kimi

**User base:** Strong in HK, Taiwan, and among overseas Chinese communities. Known for handling long documents and detailed queries.

**How it cites:** Similar to DeepSeek in preferring Traditional Chinese sources, but also handles complex, multi-part queries particularly well.

**Best for:** Detailed product/service queries from Chinese-speaking users.

Where to focus

| Platform | Priority for HK B2C | Priority for Professional Services |

|---|---|---|

| ChatGPT | High | High | | Perplexity | Medium | High | | Google AI Overview | High | Medium | | DeepSeek | High | Medium | | Kimi | High | Low |

The most efficient approach is to track all five platforms with BeeIndex and let the data guide your priorities. Often, brands discover they're strong on one or two platforms but completely absent from others — a clear signal of where to focus content efforts.