Claude, ChatGPT, Gemini, and Grok: How to Use Each One Well

There are four AI tools most people will run into this year: Claude, ChatGPT, Gemini, and Grok. They can all write an email, answer a question, and summarize a document. On the surface, they feel interchangeable.

They're not.

Each one has a different strength — something it does noticeably better than the others. Once you know what that is, you stop treating them as clones and start using the right one for the right job.

Here's a practical guide to each, plus the one thing they all have in common.

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Claude — when you need careful, nuanced thinking

Claude is made by Anthropic, and its biggest edge is reasoning through complex or sensitive material. Where other tools sometimes rush to an answer, Claude tends to think out loud — considering different angles, flagging uncertainty, and giving you something that holds up under scrutiny.

It's also particularly good with long documents. You can paste in an entire contract, a research report, or a long email thread and ask it to analyze the whole thing at once.

Try this:

"I'm going to paste a document. Don't summarize it yet — first, tell me the three most important things I should understand before making any decisions based on it. Then flag anything that seems ambiguous or missing. Here's the document: [paste it]"

That two-step instruction — understand first, then flag problems — is where Claude tends to shine. It won't just skim and give you bullet points. It'll actually engage with what's there.

The transferable lesson: Asking AI to reason before it answers almost always improves the output. Don't just ask for the answer — ask it to think through the problem first, then give you the answer.

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ChatGPT — when you want to do something you've never done before

ChatGPT, made by OpenAI, is the most widely used AI tool in the world. One underrated side effect of that: there are more guides, tutorials, example prompts, and community knowledge built around ChatGPT than any other tool.

But its real edge right now is breadth of capability. The paid version (ChatGPT Plus) can analyze a spreadsheet you upload, generate images, browse the web, run code, and handle all of it in one conversation. If you've never tried uploading a file and asking it questions about the data inside, it's worth doing once just to see what's possible.

Try this:

"I'm going to upload a document / spreadsheet / image. Look at it and tell me: what's the most useful thing you can do with this for someone in my situation? My situation is: [one or two sentences about your job or what you're working on]."

This is a good way to discover capabilities you didn't know existed. Let it tell you what it can do with what you gave it.

The transferable lesson: Tell the AI who you are and what your situation is. "Someone in my situation is" — that five-word phrase unlocks a lot. You stop getting generic responses and start getting relevant ones.

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Gemini — when you live in Google's world

Gemini is Google's AI assistant, and its clearest advantage is being embedded in tools you're probably already using: Gmail, Google Docs, Google Sheets, Google Drive. If you're a Google Workspace person, Gemini can reach into your actual files and emails — not just content you paste in.

It's also unusually good at pulling in current, real-world information. When you need to know what's happening right now — not six months ago when a model was trained — Gemini tends to do better than most because of its tight integration with Google Search.

Try this — in Gmail:

"Summarize this email thread. What was decided, what's still open, and what do I need to do next?"

Try this — in Google Docs:

"I'm writing a [report / proposal / update]. Based on what's already in this document, what's missing? What would a reader be left wondering?"

That second prompt is one of the most useful things you can do with a document you've been staring at too long. Fresh eyes — even AI ones — catch gaps you've stopped seeing.

The transferable lesson: AI works best when it has context. The embedded tools (Gemini in Gmail, Copilot in Word) are valuable because they have direct access to your actual content. When you're using a standalone tool, the fix is the same: paste in as much relevant context as you can. Don't make it guess.

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Grok — when you want to know what's happening right now

Grok is made by xAI (Elon Musk's company) and lives inside X (formerly Twitter). Its biggest differentiator is real-time access to what people are actually saying on X — current events, trending conversations, public reactions, breaking news.

If you follow a particular industry, a topic, or a public figure, Grok can tell you what people in that space are saying today — not what was written six months ago.

Try this:

"What are people in [your industry] talking about on X right now? What topics are trending, and what's the general sentiment?"

Or, if you're monitoring something specific:

"What's the latest on [topic or company or public figure]? Summarize what's happened in the last week and what the main debates or reactions are."

This is genuinely useful for anyone who needs to stay current — whether that's for work, a hobby, or just understanding a fast-moving situation.

The transferable lesson: Know what kind of information you need, then pick the right tool for it. Current events and live conversations → Grok. Deep analysis of a document → Claude. Working inside your existing files → Gemini. Exploring something new from scratch → ChatGPT.

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The one thing they all have in common

Here's what nobody says loudly enough: the skill that makes one of these tools work well is the same skill that makes all of them work well.

Specific prompts beat vague ones. Context gets better results than none. Telling it who you are and what you're trying to accomplish changes everything. Asking it to reason through a problem before giving you an answer almost always improves the output.

These four tools are different in meaningful ways. But a person who knows how to write a good prompt will do well with all of them — and a person who doesn't will get mediocre results from all of them, regardless of which they pick.

The tool matters less than the skill.

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Learning that skill — how to get genuinely useful results from any AI, not just one of them — is exactly what the Clearly, AI course is built around. No technical background required. Plans start at $15/mo — see what's inside.