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Choosing a Chat Assistant

The short answer​

If you…Your main pick
Aren't sure and want the most all-around choiceChatGPT
Read long documents or write long pieces every dayClaude
Rely heavily on Gmail / Google DocsGemini
Work at a company that uses Microsoft 365Copilot (plus one of the above)
Mostly look things up and need sourcesPerplexity (paired with any of the above)

All three have free versions, and they're plenty for when you're starting out. Pick one, use it for two full weeks, and then decide whether to switch.

How the three differ in personality​

ChatGPT (OpenAI)​

What it's like: An all-purpose assistant that knows a little about everything and has the most resources.

Where it shines:

  • The most complete ecosystem, with the fastest feature updates
  • Image generation, data analysis, voice conversations, and more are all well integrated
  • The most tutorials and examples online, so it's easiest to find answers when you get stuck

Watch out for: More features also means a more complicated interface, and beginners can easily get overwhelmed by all the options. Just stick to the basic chat box at first.

Claude (Anthropic)​

What it's like: A seasoned advisor who writes well, reads fast, and speaks clearly.

Where it shines:

  • Especially good at handling long documents. Great for pasting in a whole report and asking it to analyze it.
  • Clear structure and a natural feel for writing. Consistently good at polishing and rewriting.
  • Tends to be honest about what it's unsure of, and is relatively restrained when it comes to hallucination.

Watch out for: It doesn't have as many add-ons as ChatGPT, and it has fewer multimedia features.

Gemini (Google)​

What it's like: An assistant that already lives in your Google account.

Where it shines:

  • Deeply connected to Gmail, Google Docs, Sheets, and Drive
  • Search comes naturally to it, so finding the latest information is easy
  • Can work directly with files in your Google Drive

Watch out for: That convenience also raises access and permission questions. If you're using a work account, check your company's IT policy first.

Choose based on your work​

You write lots of emails and copy every day​

→ Claude or ChatGPT will both do. What matters isn't the tool, but whether you've built your own prompt templates.

You read reports, research papers, or contracts every day​

→ Claude. Understanding and summarizing long documents is its clearest strength. It works even better paired with NotebookLM as a knowledge base.

Your work involves looking up a lot of current information​

→ Use Perplexity as your starting point for research, then hand the answers to your main assistant to shape them into the format you need.

You need to organize data or do spreadsheet calculations​

→ ChatGPT's data analysis feature (it actually runs code to do the math, which is far more accurate than reasoning in plain text), or Gemini with Google Sheets.

Your company already uses Microsoft 365 or Google Workspace​

→ Start with what your company provides (Copilot or Gemini), since data compliance has already been taken care of. Then keep a separate main assistant for your personal use, for anything that doesn't involve company data.

Is the free version enough?​

For most people, the answer is: at first, yes. Once you get the hang of it, no.

Common limits on free versions:

  • Usage caps on the faster, more powerful models
  • Smaller allowances for advanced features (deep research, file analysis, image generation)
  • Slower speeds at peak times

Our advice: Stick with the free version until you're hitting the usage limit two or more times a week, then consider paying. By then you'll also know which features you really need.

Before switching, make sure it's not your prompt​

Lots of people decide "this AI isn't any good," switch to another one, and find it's the same. Before you switch tools, check:

  1. Did you give it enough background?
  2. Did you clearly say what format you want?
  3. Did you give it an example?
  4. Have you tried switching to a reasoning model?

If you've done all four and it still isn't working, then think about switching. You'll find how-tos in the Prompt Library.

note

This page describes each tool's overall personality, not a feature-by-feature comparison. AI features change very quickly, so check official announcements and your own testing for specifics.