AI Browsers: Perplexity Comet versus ChatGPT Atlas
What each browser offers
Comet
- Comet is a Chromium-based browser launched by Perplexity AI in mid-2025.
- Its defining features: it replaces or deeply integrates search with AI, can summarise webpages, acts as an intelligent assistant “travelling with you through tabs.”
- For example, Comet allows you to ask the browser to summarise a page, close tabs you haven’t used, or generate an email based on content you were reading.
- Initially it was limited to high-subscription users (Perplexity Max around USD 200/month) and waitlists.
- Later it expanded availability (even free tiers) in some markets.
- It also positions itself as an “agentic” browser: the browser doesn’t just show you results, it tries to perform tasks for you.
ChatGPT Atlas
- ChatGPT Atlas is OpenAI’s first full-browser release (Chromium-based) that embeds ChatGPT as a core feature of the browsing experience. Released in late October 2025 on macOS, with Windows, iOS, Android planned.
- Key capabilities: On any page you’re browsing, you can bring up the ChatGPT sidebar, ask it to summarise the page, analyse data, compare products, even “agent mode” where it can act on your behalf (for paying users).
- It emphasises memory: the browser can store “browser memories” (if enabled) to remember what you did and tailor assistance accordingly.
- It’s positioned explicitly as a challenger to Google Chrome (which dominates the browser market) by making the browser side-kick the AI assistant rather than the browser being purely a UI for browsing.
How they compare: strengths & trade-offs
| Feature | Comet | ChatGPT Atlas |
| AI assistant integration | High: built-in agentic tasks, strong focus on search + assist. | Very high: ChatGPT is built-in, sidebar, full task mode (for paid users)) |
| Task automation (agentic functions) | Strong: can perform tasks like summarise, send emails, manage tabs | Strong: Agent mode allows actions beyond simple summarisation (shopping, research) |
| Availability & cost | Initially high cost / subscription; later free tiers began to appear. | Free version available (for Mac initially), advanced features in paid tiers. |
| Platform support | Chromium-based, desktop initially; mobile future planned. | Desktop (macOS) initial; mobile versions coming. |
| Privacy / memory / data use | Some concerns & early vulnerabilities highlighted (see below) | Also concerns about data/memory tracking; user must opt-out of “memories”. |
| Market position & challenge | Trying to challenge Chrome + Google Search by offering integrated AI search & browsing. | Similarly positioned: OpenAI aiming to make ChatGPT the core of your browser experience. |
Trade-offs & what to watch
- For Comet: While innovative, some security audits pointed out vulnerabilities: e.g., ability of malicious web pages to inject commands via summarise features.
- For Atlas: Similarly, privacy and memory tracking features raise questions about how much browsing data is being used, how transparent the settings are.
- Both browsers are still early: feature sets will evolve, bugs will get fixed, mobile support will roll out. Early adopters should expect iteration and some instability.
- For SMMEs or smaller markets: Platform maturity, browser compatibility, local language support, data consumptions, and regional integrations (payment, local search) may matter — and global tools might not yet be optimised for all regions (e.g., Africa).
Which one could be the “winner”? (and for whom)
There’s no absolute winner today — it depends on your priorities. But here’s how to think about choosing between them.
If you care about immediate productivity and task-automation, and you’re comfortable with early-stage software and potential risks:
- Comet might be appealing, especially if you want a browser that actively helps you complete tasks (send email, summarise, manage tabs) and you don’t mind subscription cost.
- Especially for research-heavy workflows or agency work where summarisation and tab management matter, Comet’s early “agentic” features are compelling.
If you prioritise brand-recognition, ecosystem integration, and long-term support, and you’re already using ChatGPT or OpenAI in your workflows:
- ChatGPT Atlas is strong because it embeds ChatGPT within the browser and is backed by OpenAI’s ecosystem.
- For teams already leveraging ChatGPT’s tools, being able to browse with your assistant built-in could streamline workflows.
For SMMEs and agencies in Africa specifically:
- Consider local needs: does the browser support your region’s search behaviour, language, data settings, device types (many mobile users)?
- Comet being Chromium-based and positioning itself aggressively might give it flexibility, but its mobile rollout may lag.
- Atlas is just starting with macOS, so if you’re using Windows, Android or iOS predominantly, you may need to wait.
My recommendation right now: If I had to pick for a general use case today, I’d lean ChatGPT Atlas as the safer bet because of ecosystem, brand backing and expected broader rollout. But if you are a power user who needs advanced automation today, Comet could be ahead in feature innovation for now.
AI-powered browsers are a big evolution: they move browsing from passive link-clicking to active assistance. Both Comet and ChatGPT Atlas show how a browser can become an “agent” rather than just a tool for viewing pages.
For digital agencies and SMMEs looking at how to leverage this technology:
- Experiment early, but know you’re using emerging tech.
- Think about workflows: what parts of browsing you currently do manually that an AI could help with (summaries, research, comparative shopping, client proposals) — and test how each browser supports those.
- Monitor data, privacy and regional support carefully — especially since emerging markets often have different connectivity, device usage and regulatory environments.
- Ultimately, the “winner” will be the one that offers the best balance of reliability, feature set, regional support, cost and future-proofing. Right now, both are contenders.