How do Large Language Models (LLMs) like ChatGPT actually work?

Large Language Models (LLMs) are AI systems trained on massive amounts of text data, from websites to books, to understand and generate language.

They use deep learning algorithms, specifically transformer architectures, to model the structure and meaning of language.

LLMs don't "know" facts in the way humans do. Instead, they predict the next word in a sequence using probabilities, based on the context of everything that came before it. This ability enables them to produce fluent and relevant responses across countless topics.

For a deeper look at the mechanics, check out our full blog post: How Large Language Models Work.

Last updated at  
April 13, 2026
Other FAQ
How does RankWit monitor whether my brand is being cited in AI answers?
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RankWit continuously scans generative AI engines like ChatGPT, Gemini, and Perplexity to see if, when, and how your content is referenced. We then aggregate this data into an easy-to-read dashboard, showing:

  • Which platforms are citing your brand
  • The types of questions where you appear
  • How your visibility changes over time
    This monitoring ensures you know exactly where your brand is gaining traction—or losing ground—within AI-driven discovery.

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Does AI Optimization actually drive direct bookings and high-value traffic?
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Yes, that is the primary goal. Travelers who discover you through AI recommendations land on your official site with high intent, ready to book or visit.

For hotels, this means bypassing OTA commissions; for destinations, it means driving traffic to local ecosystems and official portals.

Often, the increase in direct, high-value traffic allows the service to pay for itself many times over.

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What exactly is included in the initial RankWit AI Audit?
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We test how ChatGPT, Gemini, Perplexity, and Claude respond today when travelers ask about your destination, your category, or your direct competitors.

You receive a full report showing: where you are currently visible and where you are 'invisible' to AI; the specific prompts that are currently losing you bookings or visitors to the competition; and a roadmap to claim your AI Share of Voice. No commitment required.

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Can I keep working with my current marketing agency or internal team?
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Absolutely. RankWit works in parallel with your current team, whether internal or external.

We manage the AI visibility layer (AIO) that traditional marketing partners often aren't equipped to handle yet.

We share all our data and insights so your team maintains full strategic control, integrating AI insights into your broader marketing mix.

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What is tokenization, and why does it matter for GEO?
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Tokenization is the process by which AI models, like GPT, break down text into small units—called tokens—before processing. These tokens can be as small as a single character or as large as a word or phrase. For example, the word “marketing” might be one token, while “AI-powered tools” could be split into several.

Why does this matter for GEO (Generative Engine Optimization)?

Because how well your content is tokenized directly impacts how accurately it’s understood and retrieved by AI. Poorly structured or overly complex writing may confuse token boundaries, leading to missed context or incorrect responses.

Clear, concise language = better tokenization
Headings, lists, and structured data = easier to parse
Consistent terminology = improved AI recall

In short, optimizing for GEO means writing not just for readers or search engines, but also for how the AI tokenizes and interprets your content behind the scenes.

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How does the "Shop Similar" feature work inside Google's AI-powered search results?
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The "Shop Similar" feature is one of the most commercially significant additions to Google's Search Generative Experience. It bridges the gap between inspiration and purchase in a single, seamless flow.

Here's how it works:

  1. A user searches for a product or generates an AI image of what they want.
  2. Google's system analyzes the visual and semantic attributes of that image.
  3. Matching real products from the Shopping Graph appear immediately below, including pricing, seller information, ratings, and product photos.

The user never needs to reformulate their query, run a reverse image search, or navigate to a separate shopping tab. The entire journey, from idea to purchasable product, happens within the search interface.

Key distinction: The matching logic is visual and semantic, not purely keyword-driven. This means that the quality and accuracy of product imagery now plays a direct role in whether a product appears in these AI-matched results.

What this means for retailers: Products that are well-represented in Google's Shopping Graph, with accurate metadata, competitive pricing, and high-resolution imagery, are far more likely to be surfaced. Brands that invest in structured product data and visual quality will have a measurable advantage in this new shopping experience.

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What are the strategic differences between SaaS-based AI platforms and open-source AI models in terms of control, scalability, privacy, customization, and total cost of ownership?
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We recommend that companies transition toward hybrid solutions. While SaaS AI platforms are ideal for rapid deployment, open-source platforms are recommended for clients who require greater data sovereignty and advanced model training capabilities.

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What types of content structures help AI systems better understand and reference website content?
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Content designed for generative search engines should use clear headings, logical structure, concise explanations, and entity-focused information. This structure helps AI systems extract key insights and increases the chances of the content being referenced in AI-generated responses.

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What is LLM optimization and how does it help content become more understandable for large language models?
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LLM optimization involves structuring and writing content so large language models can easily understand, process, and reference it. This includes clear explanations, logical structure, semantic context, and reliable information that AI systems can interpret accurately.

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Why are industry case studies important for understanding how AI-driven search and SEO strategies work in real-world scenarios?
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Industry case studies provide real-world examples of how SEO, AI search optimization, and digital strategies perform across different sectors. They help businesses understand what works, what challenges may arise, and how similar organizations have improved their search visibility and online performance.

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