January 26,2026
What Is an LLM? A Beginner’s Guide to Large Language Models
Key Highlights on How to Optimise Your Content for LLMO
- Make your content the go-to source – structure your pages so AI can reference your content, include your summarises, and recommend your content.
- Give the full picture – clearly explain who you are, what you do, and why it matters; don’t leave gaps for AI to guess.
- Stick to the same terms – use consistent names for your products, services, and key concepts so AI recognises them quicker.
- Set up your website properly – meta titles, descriptions, schema, and internal links act like a roadmap for AI to understand which will impact your likelihood of being cited by LLMs.
- Show you know your stuff – include facts, stats, examples, and credentials so both AI and users see your content as trustworthy.
The way people find information online is changing. Traditional search engines are still important, but customers are turning to AI-powered tools like ChatGPT and Gemini for instant answers, recommendations, and insights.
These tools rely on Large Language Models (LLMs), advanced systems trained to read, write, and summarise information to generate their responses.
That’s where LLMO, or Large Language Model Optimisation, comes in. LLMO is the practice of creating and structuring your content so that AI models are more likely to: reference your pages, recommend your brand, quote your data, or summarise your content accurately.
Essentially, it’s about making your website the source that AI tools use to answer questions and guide decisions.
As AI increasingly becomes part of the customer journey, understanding how LLMs work and optimising your content for them is no longer optional, it’s a critical part of staying visible, and competitive online.
- What is LLMO?
- Where are LLMs used and why does it matter for my business?
- How can I optimise to be used by an LLM?
- Structure your content clearly
- Use consistent terminology
- Provide context to all content
- Improve your website formatting
- Write authoritative and factual content
- Improve meta data and Schema
- Final thoughts
What is LLMO?
Before we can understand what LLMO is, we first need to take a look into LLMs.
LLM stands for large language model, its a system that ai uses, to generate and understand language. It can ‘read’, write and answer questions, trained on a range of sources from books, websites and articles.
Think of an LLM as an engine of a car and systems like ChatGPT the car that uses that engine.
- LLM = the language engine that predicts words intelligently
- AI tools (like ChatGPT) = apps built using that engine
So, LLMO, simply stands for large language model optimisation. LLM optimisation is about being the example, the recommendation, or the source inside an AI-generated answer.
It’s the practice of creating and structuring content so that an LLM (e.g., ChatGPT, Gemini) is more likely to:
- Reference your content
- Recommend your brand
- Quote your data
- Summarise your page
It’s a new form of optimisation to try and get your content discovered, and cited by ai models such as ChatGPT, gemini and more. In other words it’s what you can do to your website to make your content be the source that AI models use for their answers.
Why is LLMO Important?
There is currently a large shift in how people are searching for answers online. Traditional searches are still used, and are still very relevant to how you optimise your website, but now with the shift toward AI, if you’re not optimising your website for LLMs, you might be less likely to get found online.
As an example a recent study found that more than ‘83% of people said they found AI-powered tools more efficient than traditional search’.
There’s a big different reason for this.
Traditional search gives you a range of relevant links to the keywords you search, but people are impatient, we want instant answers and instant results. AI tools mostly supply this.
Rather than search a question and choose from a range of links, people can now search something, and be provided an instant answer, with the relevant citations.
With this in mind, it’s more important now than ever to get your website and content cited and used in LLMs.
So, why is it important to understand LLMs?
Understanding Large Language Models (LLMs) has become a core business feature that we urge businesses to at most to understand. The way people discover information, make decisions, and interact with brands is shifting toward AI. So, If you don’t understand how LLMs work, you risk becoming invisible in the very places your customers might be searching.
Understanding LLMs helps you ensure your content is:
- Machine-readable
- Structured
- Consistent
- Credible
Where are LLMs used and why it matters for your business
Large Language Models (LLMs) have quietly woven themselves into the daily habits of your customers. People now rely on AI tools like ChatGPT, and Gemini not just for curiosity, but for real decisions, what to buy, who to trust, and which businesses to consider.
Search and Discovery Has Shifted: More people are asking AI tools for answers instead of using Google the traditional way. Someone searching for a business like yours may now start with, “What’s the best tool for…?” or “Who should I use for…?”.
if your business isn’t recognised, understood, or referenced by LLMs, you’re invisible at the very first stage if customers are searching using ai
LLMs Influence: When people are close to purchasing, they now often ask AI for advice: which provider to choose, which product performs better, or what alternatives exist. These answers can directly elevate or exclude certain brands.
You might never appear in a comparison unless the model already “cites” you and has high-quality information to work with.
Ultimately, LLMs are becoming a place where customers form opinions, compare options, and make decisions. If AI doesn’t use your content, your customers won’t find you if they use these tools.
How can I optimise for LLMs?
There are a range of ways you can optimise your website for LLMs…
Structure your content effectively
Good structure is one of the most powerful parts of LLM optimisation, because models read your site differently from humans. They scan for signals: headings that define topics, paragraphs that answer specific questions, and sections that map to common questions.
Think of each page like a conversation. Start with a clear statement about what the page is for. Use headings that actually describe the content beneath them. Break down complex ideas into tidy, conversational explanations. LLMs often use content that feels modular, in other words, something they can easily lift, summarise, and reuse.
It also helps to write in a way that answers real questions your audience asks. Instead of burying key information under marketing language, bring it forward.
If you can make every page readable by a human and understandable by a machine, you dramatically increase your chances of becoming the example an LLM offers when someone searches for what you do.
Push Brand Mentions, Backlinks
LLMs don’t just rely on what’s on your website they also look at how your brand is spoken about and interacted with.
External signals such as brand mentions, backlinks, references, and citations help models understand that your business is legitimate, active, and trusted in your industry.
Think of these as “evidence” that suggests your brand matters. The more places you show up, the more confidently an AI can reference you.
Why this matters:
When LLMs generate answers, they prefer sources that appear consistently across credible sites. If your business is mentioned regularly online with accurate descriptions and links, AI is more likely to pull you into recommendations and comparisons.
As an example, a quick search of ‘Best mechanical keyboards 2025’ in ChatGPT, brings up a range of product suggestions. You can see the sources that quote, and reference and cite these products, which ultimately is the reason for its top picks.
ChatGPT references sources that are closely related to the topic searched, and then recommends brands that are frequently mentioned within those credible sources. In other words, there is a clear link between media coverage, online mentions, and AI-generated recommendations.
This is why PR and press coverage are so important. When your brand is regularly featured in relevant articles, reviews, and trusted publications, it increases the likelihood that LLMs will recognise your business as authoritative and include it in recommendations, comparisons, and answers.

For example…

Here’s what you can do:
- Encourage natural mentions in articles, and industry blogs.
- Try to secure some high-quality backlinks from trusted businesses.
- Get your brand listed in relevant directories or other relevant platforms.
- Collaborate or guest post to increase visibility and reinforce expertise.
These signals help to build a stronger “footprint” for your business that AI can see, validate, and then ultimately use when forming its answers.
Strengthen Your Online Reputation
Your online reputation plays a major role in how an LLM talks about your business. If reviews, ratings, and public discussions are consistently positive, AI models are more likely to describe your brand as trustworthy.
Reputation also influences how real users perceive you when AI presents your business as an option. Even if an LLM mentions you, poor or sparse reviews can reduce trust.
Why reputation matters for LLMs:
Your reputation tells the model whether you’re credible, active, and worth recommending.
It will look for the following…
- Review volume
- Ratings on platforms like Google, Trustpilot, or industry sites
- Public feedback and testimonials
- Press coverage
- Company responses
How to build and maintain a strong online reputation:
- Encourage happy customers to leave reviews as often as you can.
- Respond to negative reviews with clarity and professionalism, making sure you offer a solution.
- Keep your business information accurate across directories.
- Share testimonials, case studies, and success stories online.
- Maintain active social profiles with accurate descriptions and consistent messaging.
Consistent terminology
Consistent terminology is one of the easiest ways to help LLMs understand your business and one of the most common things companies get wrong. If you describe the same service in five different ways, the LLM doesn’t recognise it as one thing. But if you use the same terms everywhere, it becomes easier to identify.
Think of it like branding, but for AI, the more consistently you repeat the same service names, descriptions, and industry terms, the more confidently an LLM can reference you when customers ask questions related to your field.
Provide complete context
LLMs don’t fill in gaps the way humans do, they rely instead on the information they can scan. If your content is vague, assumes prior knowledge, or skips important details, then you’re less likely to be used, or get wrongly quoted. That’s how businesses end up being described inaccurately inside AI answers.
Providing complete context means giving LLMs the full picture: who you are, what you do, and why it matters. When that information is clear and explicit, the model can summarise you correctly and use your content.
Complete context helps LLMs:
- Understand your business without guessing
- Make accurate summaries and recommendations
- Differentiate you from competitors
- Explain your services the way you want them explained
This doesn’t mean adding unnecessary fluff. It means making sure the essentials aren’t hidden.
- Spell out your processes
- Define your services
- Include examples
- Explain your value
Clarify who each offering is for.
The more clearly you articulate your business, the easier it is for an LLM to bring your business to the customer’s by citing and quoting your content.
Format for LLMs
Formatting is one of the most practical parts of LLM optimisation because it directly affects how well AI models can read, interpret, and use your content. LLMs scan your pages for structure, headings, spacing, flow, and the clarity of each paragraph.
When the formatting is clean and predictable, the model better understands what your content is about and can confidently reference it in answers.
Good formatting isn’t about keyword stuffing or rigid templates. It’s about making your content easy for both humans and machines to navigate.
By formatting your content clearly, you’re essentially giving LLMs a blueprint to follow. The easier you make it for the model to “map” your information, the more likely it is to use and recommend your content when customers ask for help.
Build authoritative & factual content
LLMs prioritise content they can trust. If your pages are accurate, well-researched, and clearly referenced, AI models are far more likely to cite or summarise your content in their answers.
Content that is vague, outdated, or unsupported can be ignored, or worse, misrepresented. This is where you can run into issues with AI misquoting.
Building authority for LLMs is similar to building authority for humans: it’s about demonstrating expertise, credibility, and reliability across everything you publish. Cite sources and references wherever possible — LLMs detect signals of trustworthiness.
- Include data, statistics, or case studies to back up your claims.
- Use clear, precise language and avoid exaggerations or vague statements.
- Update content regularly to keep it current; AI models prefer recent information.
By building content that is both authoritative and factual, you increase the likelihood that an LLM will treat your pages as a trusted reference. This doesn’t just improve AI visibility it also builds trust with real customers who find your content using AI.
Optimise meta data & other technical areas like schema
When optimising for LLMs, content quality and structure alone aren’t always enough. Technical elements like meta data, structured data (schema), and other on-page signals play a huge role in helping AI models interpret and use your content correctly.
LLMs rely on these signals to identify key entities, relationships, and context, essentially giving them a “map” of your content.
Why This Matters:
LLMs scan web pages differently from humans. While a human reads paragraphs, a model analyses headings, lists, links, meta data, and schema markup to extract facts and relationships between content and data. If your technical elements are missing, incomplete, or inconsistent, AI may misinterpret your content or skip over important details even if the writing is great!
Meta Titles & Descriptions:
- Be descriptive and specific: Titles should clearly state the topic and, when relevant, the brand or product.
- Include key entities: Meta data is a strong signal for AI to understand who/what your content is about.
- Keep it concise but informative: 50–60 characters for titles, 150–160 for descriptions is ideal.
- Avoid duplication: Unique meta data on every page ensures the AI sees each page as distinct.
Structured Data (Schema Markup)
Schema helps AI understand relationships between your content, services, products, and organization. Some common types useful for LLM optimisation:
- Organisation schema: Defines your company, logo, contact info, and social profiles.
- Product schema: Details features, pricing, availability, and reviews.
- FAQ schema: Highlights questions and answers directly on the page.
- Article/schema for blog content: Helps AI detect publication date, author, and topic.
Consistent, accurate schema increases the likelihood an LLM will pull facts from your site instead of misrepresenting you.
Internal Linking
This helps to clearly link related content and services, establishing links between your pages that AI can follow to add more relevance to your content.
By optimising these technical areas, you’re giving LLMs signals about your business, products, and content. This increases the chance that AI will recognise you as authoritative, and hopefully feature your content in answers to customer queries.
Final thoughts
LLMs are reshaping how people search, make decisions, and interact with businesses online. If your content isn’t structured, clear, and authoritative, there’s a real risk that AI tools will overlook your brand, even if your website ranks well on traditional search engines.
By applying LLMO best practices you make it easier for AI models to understand, and reference your business.
This ensures that your content is more likely to appear first in AI-generated answers, building credibility, trust, and visibility in this new landscape.
Remember, the beauty of optimising your website for LLMs, is that it also helps to boost other areas, AEO, SEO, GEO and more. All of these marketing areas tie in together and are now crucial for your business.