Large Language Models, or LLMs, are a type of artificial intelligence. They learn from a vast amount of text data. Think of it like a student who reads millions of books and articles.
The student learns patterns, grammar, and facts from the text. LLMs do something similar. They find connections between words and then predict the next word in a sentence. This enables them generate new, human-like text.
LLMs are the brains behind many popular AI tools. When you ask a question, the LLM processes your words first and then creates a response.
This ability to understand and create text is a big deal because, they are not just looking things up in a database but are also building new sentences from what they have learned.
The bigger the model, the more it has read. A bigger model can handle more complex tasks. For example, it can write poems, summarize articles, and even create code.
Some common LLMs include OpenAI’s GPT models and Google’s Gemini models. These models are constantly being trained on new data so they get better at understanding and generating language over time.
Their power comes from their size like I said before. They have billions of parameters, or variables and these parameters are what the model adjusts as it learns.
They allow the model to make fine-tuned predictions. These models are the basic building blocks of more complex AI systems. They are the first step, or level one, in a chain of AI tools.
ChatGPT vs. Claude vs. Gemini: Which AI Tool is Best for You?
Choosing the right AI chatbot depends on what you need it for. Many of these tools use a large language model. ChatGPT, Claude, and Gemini are all built on powerful LLMs and each one has its own strengths and weaknesses. A company or person needs to pick the best tool for their work.
ChatGPT
ChatGPT is made by OpenAI. It is one of the most well-known AI tools. People use it for a wide range of tasks. It is good for writing emails, brainstorming ideas, and drafting documents. ChatGPT’s strength is its versatility because it can handle many different types of requests.
The free version uses an older model while the paid subscription gives you access to a much newer, more capable model.
ChatGPT is a good choice for people who need a general-purpose writing assistant.
Claude
Claude is made by Anthropic and it’s often praised for its long context window. This means it can remember more of a conversation.
It can read and analyze very long documents. For example, you can give it a 50-page report and it will then summarize the report or answer questions about it.
This makes it a great tool for researchers and analysts. It is also known for being more helpful and less likely to generate harmful content. It is a strong option for tasks that require deep analysis of long texts.
Gemini
Gemini is Google’s AI model and it’s integrated into many Google products. You can find it in Google Docs, Gmail, and Google Search which makes it very convenient for people who use Google’s ecosystem.
It is designed to handle multiple types of data. It can understand text, images, and audio. For example, you can show it a picture of a diagram and it can then explain the diagram to you.
It is also very fast and is a good fit for anyone who wants an AI that works smoothly with other tools they use every day.
To choose the best chatbot, think about your main task. Use ChatGPT for general writing and idea generation. Use Claude for in-depth analysis of long documents. Pick Gemini if you want an AI tool that fits into the Google ecosystem.
All three tools are built on powerful LLMs and perform similar tasks. Your specific needs will help you decide which one is right for you.
They can all help with a variety of things. Each of these chatbots is different. Still, they all work because of the LLM behind them. The model does the core work of understanding and creating text.
The chatbot itself is just the interface, that is, the program that lets a person talk to the model. The LLM is the engine, the chatbot is the car and the person uses the car to get things done. You need a good car to get the job done well, right? Similarly, you need a good chatbot to work with the powerful AI model.
The models are getting better all the time as companies release new versions and add new features which improve how the models understand language.
The competition between these companies drives progress. This means the tools available in 2025 are more capable than those from 2024 which highly beneficial to People who use these tool for constant improvement.
For example, a marketing manager who needs to write a hundred different product descriptions could use ChatGPT to write the drafts. A legal team needs to find specific clauses in a long contract could use Claude for that. A student needs to summarize a complex article they found on the web could use the Gemini model built into Google’s search bar.
Each person has a different need and each tool offers a good solution for that need. This is why it is smart to know the differences between them.
A person might want to try all three since they have free versions. Or you could use them for a week and decide which one works best for your specific tasks. This is often the best way to choose.
LLMs are the foundation of these tools or the base layer, if you like. The tools we use every day, like chatbots, are built on top of that base.
New tools will be built on these foundations and they will do new things as the field of AI is growing quickly. We will see more powerful and useful tools in the future.
About The Author
