Guide
ChatGPT, Claude, and all those names
Tell a company, a model, an assistant, and a tool apart without needing a technical background.
Making Sense of AI · Part 3 of 8
· 3 min read
https://greglum.com/learn/ai-names-explained
An AI conversation can mention a company, a model, and an app before anyone has explained which is which. The names sometimes overlap. Start with what each one does, and the conversation gets easier to follow.
A company makes or provides a product. A trained model is the part of the software that applies patterns learned from examples. An app is what you interact with. It brings together the interface, models, instructions, and available tools.
The app determines much of your experience: what you can upload, whether it can search, what information it saves, and which actions it can take. Knowing the model alone does not answer those questions.
OpenAI is the company. ChatGPT is its conversational AI assistant product. You can ask it to explain something, help draft text, or work with information you provide. Its available features depend on the product, plan, and settings.
OpenAI also develops models that other software can use. ChatGPT and an app built by another company can therefore use related model technology while offering different features and data handling.
The official ChatGPT FAQ is a useful place to check the product's current description. A chatbot reply is not automatically a web search; check whether a search tool was actually used and inspect the sources when accuracy matters.
Anthropic is the company behind Claude. The name Claude is used for both its assistant and its model family. The surrounding sentence matters: "I asked Claude" usually refers to the assistant, while a developer discussing a Claude model may mean a component inside other software.
Anthropic's getting started with Claude introduces the assistant. You can read this path without choosing or installing it.
Claude Code is a tool for working on software. It can read project files, edit them, and run commands through its available tools. The official overview explains its current capabilities and interfaces. You do not need to install it or learn programming to understand the distinction.
Consider the difference between an assistant suggesting a sentence and software saving that sentence into a file. The first produces a suggestion. The second changes something. Access and permissions become important when a tool can act.
You may also hear Gemini, which Google uses for an assistant app and models, or Copilot, a name used across Microsoft's AI products. Google's Gemini mobile-app guide and Microsoft's Copilot app introduction describe those products. Device, account, and subscription can affect the features. A familiar name does not mean every version works the same way.
For a first experiment, a familiar assistant may be enough. For a straightforward calculation, a calculator can be easier to check. For a document question, look for a way to inspect the relevant source. You do not need to find a universally "best" AI before learning anything.
When considering a product, ask what it can do for your task, what information it needs, how you can check its result, and what its current terms say about your data. A recognizable name does not settle those questions.
Here is a fictional statement: "A company built a travel app that uses a language model and a search tool."
Which part does the traveler interact with? Which component finds information? Which component can generate text?
The traveler uses the app. The search tool retrieves information. The language model can generate text from the information available to it. The company provides the product. Whether its travel advice is useful still needs checking; the component list does not prove quality.
- OpenAI: an introduction to ChatGPT
- Anthropic: an introduction to Claude
- Anthropic: what Claude Code can do