How does ChatGPT Atlas compare to Perplexity Comet?

ChatGPT Atlas is more privacy-focused and offers a cleaner, minimal interface with memory-based personalization. Comet emphasizes real-time information with cited answers and a more feature-rich UI. Atlas runs on GPT-4o with agent capabilities, while Comet uses multiple models and prioritizes fast, accurate web retrieval.

Which browser is better for privacy?

ChatGPT Atlas offers stronger privacy by default. It does not use browsing data for training unless users opt in and includes controls to delete or limit memory. Comet collects a broader range of user data, including browsing activity and Google account access, unless users actively opt out.

Will AI browsers replace Chrome or Edge?

Not immediately. Chrome and Edge still dominate the market, but AI browsers like Atlas and Comet are pushing innovation. They offer a glimpse into the future of browsing where search, automation, and content interaction are AI-driven.

ChatGPT Atlas vs. Perplexity Comet: Is AI About to Reshape How We Browse the Web?

Q: What is ChatGPT Atlas?

ChatGPT Atlas is a Chromium-based browser developed by OpenAI that integrates ChatGPT directly into the browsing experience. It allows users to summarize, rewrite, and interact with content on webpages using conversational AI, and it includes optional memory features and strong privacy controls.

Q: What is Perplexity Comet?

Perplexity Comet is an AI-powered web browser that features a persistent assistant capable of retrieving real-time information from the web. It includes a Discover feed, Background Assistants for multitasking, and answer citations for transparency.

Glow AI Solutions
Oct 26
3 min read

In October 2025, OpenAI and Perplexity both launched groundbreaking AI-powered browsers: ChatGPT’s Atlas and Perplexity’s Comet. These aren’t just browsers with a chatbot. They fundamentally change how we interact with the web. For business professionals and general users alike, this shift could redefine search, productivity, and privacy expectations online.

What Is ChatGPT Atlas?

ChatGPT Atlas is OpenAI’s new Chromium-based web browser that deeply integrates ChatGPT into the browsing experience. The homepage is a minimalist new-tab screen with a ChatGPT search bar and suggested prompts. A floating “Ask ChatGPT” button appears on every webpage, allowing users to summarise content, rewrite sections, compare products, or ask questions without leaving the page.

One of Atlas’s standout features is its "browser memory." With your permission, it can remember facts from the sites you visit. For example, it can recall job listings you explored last week to help you analyze industry trends. Atlas includes privacy-first controls. You can delete specific memories, disable ChatGPT on any site, or use full incognito mode. By default, your browsing data isn’t used to train OpenAI’s models.

What Is Perplexity Comet?

Comet is Perplexity’s own Chromium-based browser that centres on a persistent AI assistant. Every new tab includes a Comet Assistant sidebar ready to answer questions, along with a “Discover” feed that summarises trending topics or news based on your interests.

Comet takes an answer-centric approach. Its AI assistant retrieves live information from the web using sources like Wikipedia, news outlets, and product databases. Every answer comes with citations, so users can verify the facts. Comet also offers "Background Assistants" that perform multiple tasks in parallel, like researching vacation options or drafting emails, available to premium users.

Atlas vs. Comet: Key Differences

User Interface

Atlas is clean and minimal. Comet feels more feature-rich, offering widgets like news panels and third-party integrations such as TripAdvisor. Some users may find Comet more powerful, while others might prefer Atlas’s simplicity.

AI Functionality

Atlas runs on GPT-4o and offers a powerful Agent Mode for automating multi-step tasks such as shopping, booking, or planning. Comet also supports automation but focuses more on real-time information retrieval and verifiable responses.

Privacy and Data Use

This is a major divergence. Atlas doesn’t collect your browsing data unless you explicitly opt in. You control what ChatGPT can remember and where it can function.

Comet, in contrast, collects a wide range of personal data. This includes visited URLs, page content, download history, and even your Google account information if you connect it. Unless you opt out, your data may be used to train Perplexity’s models. Privacy-conscious users should evaluate this carefully.

Comet’s Google connector permission screen (via Proton) – Comet may request extensive access to your email and calendar

Performance

Initial speed tests show Comet executing automation tasks, such as online shopping, faster than Atlas. However, Atlas is improving rapidly and performed well on other tasks like emailing or scheduling.

Will These Browsers Change the Market?

AI browsers like Atlas and Comet represent a broader shift toward conversational, context-aware browsing. They turn the browser into an intelligent workspace, not just a passive viewer of pages.

This could challenge Google’s dominance. With Chrome still holding over 70 percent of the market, it's far from an immediate threat. But if users begin preferring AI-assisted, citation-rich experiences or intelligent automation, traditional browsers will need to evolve. Microsoft Edge and Chrome are already integrating AI features, such as Gemini and Copilot, in response.

Why It Matters for Business Professionals

For business users, the productivity boost is real. Atlas can conduct research, summarise documents, and even fill out forms for you. Comet can provide live, cited answers during meetings or decision-making.

But businesses must weigh that against privacy. While Atlas gives you full control, Comet’s data collection could raise concerns in industries with compliance or confidentiality requirements.

Conclusion

Atlas and Comet offer two compelling visions for the future of web browsing. Atlas is sleek, memory-based, and privacy-first. Comet is powerful, real-time, and data-intensive. They won’t replace Chrome or Edge overnight, but they are forcing the entire browser industry to adapt quickly.

Whether you're a business leader seeking productivity gains or a curious casual user, these new browsers send a clear signal. The way we browse is about to change.