Perplexity officially releases AI-powered browser “Comet” — A new search experience driven by Gamma AI 2.0

Hello, this is the AI Research team at GDX Inc.

"In this article, we explain “Comet,” the new product announced by the fast-growing startup Perplexity AI in July 2025, and its core next-generation model “Gamma AI 2.0.”
We will explore the future created by the fusion of AI and browsers and how it differs from competing offerings."

Introduction

As AI permeates everyday life, methods of information search are evolving rapidly.
As generative AI tools like ChatGPT and Google Gemini become commonplace, the integration of search and AI is entering its next stage.
Against this backdrop, Perplexity AI’s AI-native browser “Comet” is attracting attention.

In July 2025, Perplexity announced the official release of “Comet,” a web browser integrating its advanced AI technologies.
It is positioned not as a conventional browser, but as a reinvention of the search experience itself.
Supporting it is “Gamma AI 2.0,” the company’s latest in-house multimodal large language model.

Source: https://www.perplexity.ai/hub/blog/introducing-comet

What is Perplexity “Comet”?

Comet is a next-generation browser that deeply understands user behavior and provides real-time, context-aware assistance.
Unlike traditional search engines, it analyzes each page as you open it, summarizes key points, and suggests relevant sources and links.

Notably, search and browsing are fully fused.
For example, while reading a news article, Comet can show a summary in a right-hand pane and surface background information in real time.
It effectively delivers a browser experience as an “AI agent.”

Source: https://www.perplexity.ai/hub/blog/introducing-comet

Gamma AI 2.0: Perplexity’s proprietary AI platform

At Comet’s core is a multimodal model called “Gamma AI 2.0.”
Developed and trained by Perplexity, it understands not only text but also images and full web-page structure to deliver results and suggestions. 

Traditional models relied on keyword matching and struggled with page structure, whereas Gamma AI 2.0 judges layout, information placement, and source reliability.
This enables users to reach desired information faster.

Moreover, Gamma AI 2.0 adapts through interaction and tailors presentation to each user’s search style.
In short, the more you use it, the more sophisticated the personalized search experience becomes.

Source: https://www.perplexity.ai/hub/blog/introducing-comet

Points of differentiation from competitors

Comet stands apart from Google’s Gemini and OpenAI’s ChatGPT browser add-ons.
The biggest difference is that Comet is designed around AI-first search.
Rather than “adding” AI to an existing browser, it is AI-centric by design—an important technical shift.

Comet also emphasizes transparency.
It consistently cites sources and automatically links to reliable references.
This reflects Perplexity’s commitment to accuracy and transparency and addresses the “uncited answers” problem seen elsewhere.

Source: https://www.perplexity.ai/hub/blog/introducing-comet

User experience and outlook

Comet is currently available first for macOS, with Windows and mobile releases planned.

Its interface is simple and intuitive, yet AI-based assistance is powerful enough for everyday lookups and professional research.
Business plans such as “Comet for Teams” are expected to enable knowledge sharing and fast internal document search.
Adoption is also anticipated in specialized fields such as education, healthcare, and law.

Source: https://www.perplexity.ai/hub/blog/introducing-comet

Conclusion
 

Comet is an innovative effort to fundamentally rethink the relationship between AI and web browsing.
Perplexity aims not just to add AI to a browser, but to rebuild the interface between users and information.
As Gamma AI 2.0 advances, our act of “searching” will become even more seamless and intelligent.