How to use ChatGPT, Claude, and Gemini together: a guide to the AI stack for work

Why one tool is not enough

ChatGPT, Claude, Gemini, and Perplexity have evolved over the past two years in different directions. Today, they are no longer similar to each other—each has a clear specialization.

ChatGPT is the best tool for autonomous task execution and agent-based workflows. Gemini excels at integration with Google Workspace and multimedia content. Claude is ideal for writing, coding, and document analysis. Perplexity is designed for search with verifiable, real-time sources.

Choosing the right tool for a specific task directly impacts the quality and speed of the result. Those who understand this work faster and spend less.

Gemini: if you use Google every day

Gemini’s main strength is not the quality of the model itself, but the fact that it is built directly into the tools you already use. Gmail, Google Docs, Sheets, Meet—Gemini works within them, not in a separate tab.

What this means in practice: you write an email in Gmail, and Gemini sees the entire correspondence and suggests a response. You work in Google Docs, and it edits text alongside you. You open Sheets, and it analyzes data and writes formulas on request. After a Meet meeting, it automatically prepares a to-do list. There is no need to copy text into a chat, provide context again, or switch between applications.

ChatGPT: for tasks it can complete on its own

In 2026, ChatGPT is no longer just a chat where you ask questions and receive answers. What distinguishes it now is its ability to execute tasks independently, without your involvement at every step.

It works like this: you describe what needs to be done, and ChatGPT does it on its own—opening websites, filling out forms, collecting data, updating spreadsheets. While it works, you can focus on other things.

The second important feature is Projects. This is a shared workspace for teams. You connect Slack, Google Drive, add documents and instructions, and ChatGPT uses all of this in every subsequent conversation. There is no need to explain the context from scratch each time. Multiple people can work in the same project with shared settings.

You can also create custom AI assistants for specific tasks. For example, a separate assistant for processing applications and another for writing posts in a specific style. Set it up once and use it continuously.

Choose ChatGPT if you need to automate repetitive, multi-step tasks, organize a shared knowledge base for your team, or set up assistants for specific scenarios.

Claude: for text, code, and file management

Claude is the most reliable tool where quality matters: writing good text, understanding complex documents, writing or reviewing code.

In terms of writing quality, Claude consistently outperforms competitors on complex tasks. Logical structure, appropriate tone, and adherence to instructions throughout long documents—here it is the most dependable.

For developers, there is Claude Code—one of the most popular tools for working with code. You can describe in plain language what needs to be changed in a project, and it will figure out the codebase on its own.

A separate feature is Cowork, a desktop application. It gives Claude access to your local files and folders. You tell it what to do, and it does it: sorts files, writes reports from a set of notes, creates tables with formulas, plans recurring tasks. All without writing code or performing manual actions.

Claude is also built directly into Excel and PowerPoint as an add-in. It sees the contents of your spreadsheet or presentation and can edit them directly—adding formatting, rewriting slides, fixing formulas. There is no need to copy data into a chat.

Choose Claude if you write texts, work with documents, code, or want to automate file management on your computer.

Perplexity: for fast search with sources

Perplexity is a search engine with AI inside. Its main difference from others is that it does not just answer questions but provides answers with links to specific sources that can be opened and verified.

This is important when you need reliable facts—for an article, report, presentation, or simply before making a decision.

Pro Search works like this: you ask a complex question, Perplexity breaks it down into parts, searches dozens of sources for each part, and compiles everything into a structured response with clickable links. What would take several hours manually is ready in three minutes.

There is also Model Council—a feature that displays answers from several different AI models for the same question side by side. This is convenient when you need to compare or choose the best option.

Choose Perplexity when you need to quickly gather verified information, conduct competitive analysis, or fact-check before publishing.

How to use all four together

The best approach is not to choose one tool but to use each where it is strongest. Here are simple steps using content preparation as an example, which can be adapted for any task.

Step 1—Research in Perplexity. Gather facts, figures, and data on the topic. Each fact includes a link, so you can verify it immediately.

Step 2—Plan and strategy in ChatGPT. Upload the research to a Project, add a brief, and ask it to create a plan or strategy. The context is preserved for all subsequent conversations.

Step 3—Texts and content in Claude. Pass the plan to Claude and ask it to write. Articles, emails, posts, pitches. The more precise you are with context, role, and format, the better the result.

Step 4—Execution in Gemini or Cowork. If you work in Google, use Gemini directly in Gmail and Docs. If you need to manage files or automate tasks on your computer, use Cowork in Claude.