SEO with ChatGPT, Claude or Gemini: which AI do you use for what?

ChatGPT, Claude and Gemini can all three help with SEO. For titles, descriptions and short texts it hardly matters which one you choose. You see the differences with long texts, with data and with searching the web. More important than the choice is what you give the AI. A good question to the weakest of the three brings more than a vague question to the best.

This article covers which assistant to use for what. The assistants change fast. What we write here is the state of November 2026.

First a misunderstanding. “SEO and ChatGPT” can mean two things. You can use ChatGPT to do your SEO. Or you can want ChatGPT to name your business. This article is about the first. The second is in getting found in ChatGPT. The difference between the two is explained in AI SEO.

The three in short

	ChatGPT	Claude	Gemini
Made by	OpenAI	Anthropic	Google
Strong at	Broadly useful, searches the web	Long texts, following instructions precisely	Working with Google products
Handy for SEO for	Ideas, titles, search intent	Rewriting, long articles, many rules at once	Working with Sheets, Docs and Search data
Free version	Yes	Yes	Yes

All three write well. All three make mistakes with facts if you do not supply them.

What all three do well

For these tasks, just use the assistant you already have open.

Writing titles and meta descriptions. Paste your page in, give the query and the maximum length, and ask for five variants. The rules for a good title are in writing an SEO title.

Explaining search intent. Ask what someone wants to know who types “heat pump tax credit 2026”. You get a usable list of questions your page should answer.

Outlining a page. Give your topic, your audience and your facts. Ask for a structure with subheadings.

Coming up with FAQs. Paste in a few real customer questions from your inbox and ask for ten similar ones.

Writing structured data. The code that tells Google what is on your page. Always check the result in Google’s testing tool.

Twenty prompts for tasks like these are in ChatGPT for SEO. They work just as well in Claude and Gemini. Which other AI tools exist for SEO is compared in AI SEO tools.

Where ChatGPT is handiest

ChatGPT is the assistant most people already know. It is good at switching between tasks quickly and has a search feature that searches the web.

ChatGPT is handy for:

• Quick brainstorming. Twenty angles for a blog post, ten variants of a headline.
• Looking at a competitor’s page. With search it can open a page and summarize what is on it.
• Checking how it talks about your business itself. Ask what a customer would ask and see who it names. That is a first, rough measurement of your visibility in AI.

That last one is a snapshot. Ask the question again tomorrow and you get a different answer. For a reliable picture you measure every day, with a prompt tracker.

Where Claude is handiest

Claude is made by Anthropic. It is less known among business owners, but many writers and programmers work with it.

Claude is handy for:

• Rewriting long texts. A 1,500-word article where the tone must stay the same. Claude holds a style well over a long text.
• Working with many rules at once. “At most 12 words per sentence, no jargon, no exclamation marks, keyword in the first paragraph.” Claude sticks to that closely.
• Reading large documents. You can upload a long export or a whole report and ask questions about it.

With texts that must not sound like AI, that difference is clearest. How to approach that is in AI content that sounds human.

Where Gemini is handiest

Gemini is made by Google and built into Google Workspace. If you work in Google Sheets and Docs, it is often already there.

Gemini is handy for:

• Working in a spreadsheet. Your Search Console export is in Sheets. Gemini can calculate and sort right there.
• Questions about Google itself. How something works in Search Console or in the Business Profile.
• Summarizing long videos or documents in your Google Drive.

Gemini is also the engine behind the AI Overviews in Google’s search results. How to get into those is in getting found in Google AI Overviews.

What none of the three can do

This is where most business owners go wrong. They expect the assistant to know their site.

They do not know your site. An assistant only sees what you paste in, or one page it opens. It does not know you have 35 pages and that 20 have no description.

They do not know your numbers. How many impressions you get and at which position you rank is in your Search Console. Not in the language model.

They do not choose for you. Which page should you tackle this week? Without your numbers the assistant can only guess.

They put nothing on your site. You copy, log in and paste. For every page again.

They remember little. What you changed last month and what it did, you have to track yourself.

An optometrist in Sacramento who wants to improve his 35 pages with ChatGPT spends fifteen minutes per page copying, asking, choosing and pasting. That is almost nine hours. And he still does not know whether he started with the right pages.

From a standalone assistant to an assistant that knows your site

You can close that gap in two ways.

Supply it yourself. Export your queries from Search Console, upload the file and ask which pages have many impressions and few clicks. That works in all three assistants. You redo it every month.

Use an assistant that is already connected. SEO software with a built-in chat has already scanned your site and has your numbers. You ask your question and the answer is about your pages.

That is how the GreatCompany SEO assistant works. You ask: “Which page should I improve first?” The answer names the page, the reason and the new title. With a WordPress site on GreatCompany Automatic, the assistant also puts the new title on your site after your approval.

The optometrist in Sacramento then asks one question instead of 35. The assistant also knows what ChatGPT and Gemini answer when a customer asks for an optometrist in Sacramento. GreatCompany measures that every day.

Which one do you choose?

Your situation	Our pick
You occasionally do a title or a short text	The assistant you already use
You write long articles and care about tone	Claude
You work a lot in Google Sheets	Gemini
You want quick ideas and web search	ChatGPT
You want to know which page is up next	An assistant connected to your site and numbers
You want the work to happen by itself	Software that also applies changes

For that last row you need more than a chat. How software works on your site on its own is in AI SEO agent. The full overview of what you can hand over is in automating SEO with AI.

Three rules for every AI assistant

Give your facts. Prices, city, delivery time, what you do differently. Without facts you get a text that fits any business.

Ask for variants. Five titles give you something to choose from. One title you adopt too quickly.

Read everything. Every assistant makes things up now and then. Your name is under the text.

See what an assistant would say about your site

Join the waitlist. When we open in the US you get your free report, and your first questions to the SEO assistant are free. Ask, for example, which page to improve first. The answer is about your site.