Perplexity Comet vs ChatGPT Work
The facts side by side, from official pages. Head-to-head tests are coming.
Both start at $0. Where it works: Perplexity Comet (Worldwide), ChatGPT Work (Worldwide (where ChatGPT works)). We haven't run head-to-head tests yet, so this compares facts only.
Side by side
| Perplexity Comet | ChatGPT Work | |
|---|---|---|
| Made by | Perplexity | OpenAI |
| Type | AI web browser | Agent inside an AI chat app |
| Paid from | $0 | $0 |
| Free option | Yes | Yes, desktop only |
| Where | Worldwide | Worldwide (where ChatGPT works) |
| Open source | No | No |
| License | Proprietary | Proprietary |
| Setup | Easy | Easy |
| Runs on | Your browser, with Perplexity's cloud | OpenAI's cloud, with desktop app access to your computer |
| Use it from | Comet browser on Mac, Windows, iOS, Android | ChatGPT desktop app (Mac, Windows), web and mobile on paid plans |
| Real use cases in feed | 1 | 3 |
| Our test | Not tested yet | Not tested yet |
Facts checked Oct 19, 2026. Sources are on each agent's page.
Which one fits you
Perplexity Comet
Pick it if:
- most of your job happens in web pages and tabs
- you want a free option that needs no setup
Seen in the feed:
ChatGPT Work
Pick it if:
- you already use ChatGPT and want to try an agent for free on your computer
- you want one app for chat and agent jobs
Seen in the feed:
Head-to-head test
Not tested yet. We haven't run our own tests on this yet. When we do, results will appear here with the date, agent version, time, cost, how often we had to step in, and screenshots. How we test.
Questions
Which is cheaper, Perplexity Comet or ChatGPT Work?
Perplexity Comet paid use starts at $0 (free option: Yes). ChatGPT Work starts at $0 (free option: Yes, desktop only).
Which is easier to set up, Perplexity Comet or ChatGPT Work?
Perplexity Comet: Easy. Download the browser and sign in. ChatGPT Work: Easy. Install the desktop app and pick Work instead of Chat.
Have you tested Perplexity Comet against ChatGPT Work?
Not yet. We will run both on the same jobs with the same instructions and publish pass or fail, time, cost and how often we had to step in.