Article

The Browser Wars 2025: ChatGPT Atlas vs. Perplexity Comet vs. Chrome with Gemini

Sid Saladi · sidsaladi.substack.com

A product manager's complete comparison of the three agentic browsers.

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The question it answers

  1. What can AI agents and agentic browsers (ChatGPT agent, Comet, Operator) do for my research, and are they worth it?

Read with it

  1. The primary source on the agent that merges Operator's actions with deep research's synthesis. openai.com Article Introducing ChatGPT agent: bridging research and action OpenAI
  2. The launch thread with demos worth watching before you try it. x.com Thread ChatGPT can now do work for you using its own computer OpenAI
  3. Where browser-using agents started; explains the underlying computer-use approach. openai.com Article Introducing Operator OpenAI
  4. An independent read on capabilities, limits and pricing at launch. techcrunch.com Article OpenAI launches a general purpose agent in ChatGPT TechCrunch
  5. The builders on what the agent is genuinely good for versus demo-ware. sequoiacap.com Podcast OpenAI Just Released Its Powerful New ChatGPT Agent (Training Data) Sequoia Capital
  6. The launch of the research-first agentic browser. perplexity.ai Article Introducing Comet: Browse at the speed of thought Perplexity
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