A Look at the Hottest AI Browsers: Which One Is the Best?

A comprehensive review of four popular AI browsers—Dia, Fellou, Comet, and Edge—comparing their functionalities, agent capabilities, and information processing for recommendations.

In the current wave of AI applications, web browsers, a time-honored software, are once again in the spotlight. Recently, many tech companies have launched their own AI browser products, aiming to reshape our interaction with web pages through AI capabilities. So, which AI browsers are worth trying? How well do they perform in practical use? This article provides a detailed comparison based on multiple rounds of hands-on testing.


The four AI browsers generating the most buzz and discussion are:

  • Fellou: Offers extensive operational authority with strong agent execution, focusing on automated task handling.
  • Comet (launched by Perplexity): Excels in search capabilities, information integration, and content generation.
  • Edge Copilot (produced by Microsoft): Feature-rich but with a complicated workflow, leaning towards traditional user experiences.
  • Dia (The Browser Company): Primarily a conversation-driven experience, suitable for content creation tasks.

While all these browsers emphasize AI, their positioning, features, and user experiences vary significantly.


2. User Experience: Which is Smoother?

In terms of operational experience and interaction design, Fellou and Dia are relatively intuitive and user-friendly. Fellou supports full-page shortcut commands, with interactions being simple and clear; Dia is more inclined towards dialog-guided operations and also allows for personalized AI assistant behavior settings.

On the other hand, Comet has higher contextual demands for operations and requires users to manually open target pages to function optimally. Edge suffers from a complex interface, multi-step confirmations, and frequent interruptions, making it less favorable compared to the other new contenders.

📌 Recommended Order (Interaction Experience): Fellou > Dia > Comet > Edge


3. Agent Capabilities Test: Who Can Help You "Get Things Done"?

What draws users to AI browsers is not just their ability to "search for information," but their capacity to automatically execute complex tasks. We tested a typical scenario—automatically booking a flight:

  • Fellou: Automatically searches for flights, filters options, and books tickets all without intervention, issuing tickets directly.
  • Comet: Requires opening the travel booking site to execute tasks, providing stable operations and clear logic.
  • Edge: The operational workflow is complicated, requiring manual takeover and additional information input midway, resulting in lower efficiency.
  • Dia: Currently does not support agent task execution, only able to provide suggestions.

📌 Recommended Order (Agent Capabilities): Fellou > Comet > Edge > Dia


4. Search and Information Integration: Who Understands You Best?

If you often need to search for information and integrate data, Comet and Edge particularly excel in this regard.

  • Comet: Features abundant sources for integration, producing high-quality content suitable for in-depth research.
  • Edge: Supports multimodal interactions and includes the capability to automatically generate memes and charts.
  • Fellou: Has first-rate visuals, but the breadth and logic of content are somewhat weaker.
  • Dia: The latest version includes a Research function, enhancing information coverage but still tends towards simplicity.

📌 Recommended Order (Information Processing Capability): Edge > Comet > Fellou > Dia


5. Handling Multiple Tabs and Retrieving Browsing History

Another crucial scenario for modern browsers is "information management," meaning the integration of multiple web pages and recalling past information.

We tested the ability to "generate topics for a public account based on multiple articles" and "recover previously read articles," finding:

  • Comet: Not only handles multi-tab information well but can also pull specific articles from browsing history, showing the most stable performance.
  • Dia: Also supports natural language search of browsing history content.
  • Fellou & Edge: Currently do not support content retrieval after tab closure.

📌 Recommended Order (Information Memory Capability): Comet > Dia > Fellou = Edge


6. Accessibility: Which is the Easiest to Use?

Different AI browsers come with varying accessibility levels.

BrowserInvitation Code RequiredAccessibilityPricePlatform Support
EdgeNoEasyFreeMulti-platform
DiaInvitation Code Needed (Low price)Simple and FriendlyFreemacOS
FellouInvitation Code Needed (Low price)Quick to Get StartedFreeMulti-platform
CometSubscription of $200/monthHigher BarrierHigh pricemacOS (limited testing)

📌 Recommended Order (Ease of Use): Edge > Dia > Fellou > Comet


7. Overall Recommendations and Usage Scenarios

✅ For Those Wanting a Browser That Can "Take Over": Fellou

Ideal for users who prefer AI to automate tasks without manual effort.

✅ For Search and Information Integration Experts: Comet

Suitable for research, content creation, and high-density information work scenarios.

✅ For Experiencing Conversational AI: Dia

More like an intelligent companion, ideal for writers, creative writing, and casual note-taking.

✅ For Seeking All-In-One Compatibility: Edge

Suitable for users who do not want to switch browsers and prioritize stability and compatibility.


Conclusion

While these AI browsers are still evolving, they have already demonstrated considerable potential. The choice of which to use largely depends on your habits and primary usage scenarios.

Regardless, AI browsers have transcended the novelty phase and are now vital tools quietly changing how we work and access information daily. The sooner you start using them, the sooner you'll benefit.


Next Steps:

  • If you haven't tried an AI browser yet, start with Fellou or Dia—they have low barriers to entry and provide excellent experience.
  • For users requiring high efficiency, Comet is a worthwhile investment.
  • For enterprise users, Edge, along with domestic options like QQ Browser AI version and Quark AI version, are also worth considering.