Letters by Burk

Letters by Burk

How to Use the Comet Browser by Perplexity as a Writer

And Actually Do Things You Can’t Do With ChatGPT

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Burk
Oct 15, 2025
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My Medium friends can read this story over there as well.

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When Perplexity announced their new Comet Browser, I didn’t give it much thought. Another new browser…

But then I got an invitation for it. It was waitlist only at that time.

So, I tried it.

And suddenly, I was staring at something pretty useful that got more powerful with each idea I had.

Here’s how I use it daily now for writing. (And also how I got Perplexity Pro for free with it).


What is Comet

Comet isn’t just a chat box glued to a browser window like a ChatGPT extension or something like that.

It’s also not a chatbot like ChatGPT, although it can be used like it.

Instead, Comet is an AI-native workspace that reads what you read, learns what you’re doing, and helps you research, categorize, summarize, and rewrite, all inside your normal browsing flow.

It also handles many of the tedious tasks no one wants to do all day.


Make it Work For a Writer

Comet is built by Perplexity, the team behind the smart search engine that’s been taking on Google with a new search engine approach.

Inside the Comet Browser, you get:

  • A side assistant that can summarize, rewrite, cross-reference, and fetch data.

  • Context awareness (it knows what page you’re on, what text you’ve highlighted, and what you’re working on).

  • Research clustering, tab grouping, and automation for repetitive tasks.

  • It can take action on pages, like looking through websites, searching for pages and content, clicking links, buttons, fields, opening pages, copying and pasting, and much more.


How I Actually Used Comet

Instead of just testing Comet on random tasks, I threw it into my real workflow.

Here’s how it helped me get a better understanding of my own writing, uncover gaps, and plan future projects.

1. I let Comet categorize my Substack archive.

I opened my Substack archive with hundreds of posts spanning a couple of years and asked Comet to categorize my writing into themes with suggested tags.

It ran through the entire archive and gave me a breakdown that looked something like:

(This issue is behind paywall. You can sign up for my paid newsletter 50% off here if you enjoy my content & want more. Or read on Medium.)

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