7 Best AI Browsers 2025 — Full Comparison & Real Use Cases

Denis K

Author

The web is changing fast — and so is the way we browse it. Traditional browsers are evolving from passive tools into intelligent companions, powered by AI agents that can summarize content, automate tasks, and even take actions on your behalf. Instead of juggling dozens of tabs, copy-pasting text into separate chatbots, or manually performing repetitive steps, AI browsers promise a smoother, smarter, and more autonomous browsing experience.

Different companies are focusing on:

• Platform-native solutions that use operating system features for a more seamless experience.
• Privacy and local AI models to give users more control over their data.
• Deep integration with existing workflows to make AI a natural part of daily work.
• Agentic automation that turns the browser into an active digital assistant.

Here’s our current Top 5 ranking of new AI browsers for 2025

• Dia – A truly AI-native browser built for contextual interaction and automation, setting a new benchmark for agentic browsing.
• Perplexity AI Comet – Deeply integrated assistant with powerful reasoning and task execution.
• Fellou – Proactive agentic browser with adaptive memory and multi-step automation.
• SigmaOS Browser – AI-first action engine focused on research and autonomous workflows.

This is only a short preview. In the following sections, we’ll break down why we chose this specific lineup, examining the technology, user experience, and vision behind each browser.

1. Dia (2025) — AI-Native, Context-Driven Browser

Dia is built from the ground up as a fully AI-native browser, designed for contextual interaction and automation rather than traditional tab-based browsing. It positions itself as a new benchmark for agentic web experiences.

Released in 2025 by the team behind Arc, Dia represents a shift from enhancing existing browsers with AI to rebuilding the browser around AI. Its architecture is optimized for real-time context understanding and agent-driven actions, moving beyond simple chat assistants.

The first widely recognized “AI browser” is often considered to be Arc Max (from The Browser Company), launched in late 2023, when it integrated AI previews, ChatGPT queries, and smart tab features directly into the browsing experience.

Key Use Cases:

• Interact directly with web pages through natural language (e.g., “summarize this document,” “highlight key points”).
• Video Processing: Dia can translate, summarize, and transcribe videos, turning long content into concise, actionable text
• Create reusable AI skills for routine workflows.
• Run multi-step actions across multiple tabs without manual switching.
• Maintain ongoing research or work sessions with context preserved.
• Use AI as the primary navigation and interaction layer.

2.Perplexity AI Comet (2025) — AI-First Browser

Comet is built around AI as its main interface, replacing the traditional homepage with a conversational assistant powered by Perplexity’s own models (Sonar, R1) and external LLMs. AI is fully integrated into the browsing core, not added as a sidebar.

Launched in 2025, Comet marks Perplexity’s shift from AI search to full browser development. It’s one of the first Chromium-based browsers where navigation, task execution, and content interaction all run through a chat-driven interface.

Key Use Cases:

• Execute complex web tasks (e.g., filling forms, structured searches) autonomously.
• Summarize and explain articles directly in the browser.
• Automate email scheduling or calendar event creation from chat.
• Compare products or collect data across multiple sites with one command.
• Conduct research without switching between tabs.

Comet is positioned as a task-oriented, AI-native browser, offering faster research and workflow automation compared to traditional browsers.

3. Fellou.ai (2025) — Proactive Agentic Browser with Adaptive Memory

Fellou.ai focuses on proactive, agentic behavior, using adaptive memory to understand user goals and execute multi-step tasks autonomously across the web and desktop.

Launched in 2025, Fellou is built as an AI-first agentic browser, not just a browsing interface with an assistant. Its core innovation is Agentic Memory, which learns from user activity to anticipate needs and act without requiring constant prompts.

Key Use Cases:

• Automatically handling repetitive workflows, such as filling forms or navigating specific websites.
• Executing multi-step tasks (e.g., research, booking, data collection) with a single instruction.
• Learning from user behavior to anticipate tasks and offer relevant actions.
• Managing both web and desktop workflows through a single agent.
• Maintaining long, context-rich sessions for ongoing work.

Fellou.ai positions itself as a true digital agent, going beyond assistance to act autonomously, making it ideal for users who want hands-off task execution and adaptive browsing.

4. GenSpark.ai — Transparent & Versatile AI “Super Agent” Browser

GenSpark.ai is not a traditional browser but an AI-powered agentic platпо form that combines multiple models to automate research, content generation, and task execution.

Launched by MainFunc in April 2025, it positions itself as the most transparent and auditable AI agent, thanks to Playwright-based activity tracking and support for local/offline models. GenSpark can sometimes hit Cloudflare protections and prefers short, clear prompts for best results.

Key Use Cases:

• Deep document analysis, fact-checking, translation, and data visualization.
• Travel planning, API interactions, booking, and outreach.
• Generating presentations, text, images, videos, infographics, and podcasts.
• Runs local/offline models and provides full audit trails for compliance.

It’s best suited for analysts, creators, and teams that value accuracy, auditability, and flexible workflows. While it’s not flawless — occasional fact errors and site protection issues remain — GenSpark offers a powerful, well-structured environment for advanced tasks that go beyond basic AI chat.

5. SigmaOS Browser (2024–2025) — AI-First Action Engine for Research and Workflows

SigmaOS positions itself as an AI-first “action engine”, focusing on research, content generation, and autonomous task execution rather than traditional browsing.

Originally launched as a productivity-focused browser, SigmaOS introduced its AI-powered version in 2024–2025, integrating its proprietary SigmaGPT model. This upgrade transformed the browser from a tab manager into an intelligent workspace optimized for deep work and automation.

Key Use Cases:

• Conducting in-depth research by delegating search and synthesis tasks to the AI.
• Automating repetitive online workflows (e.g., data entry, structured searches).
• Using SigmaGPT as a writing assistant for drafting or editing content.
• Logging into sites and completing form-based actions autonomously.
• Managing complex, multi-tab work sessions efficiently.

Sigma bills itself as an AI-First Agentic Browser — not just a browser with AI features, but one where the AI agent acts inside websites by logging in, clicking, typing, and completing tasks.

Drawbacks of SigmaOS

SigmaOS takes a bold, progressive approach by reimagining the browser around a command palette rather than traditional tabs and shortcuts. This concept can be powerful for users who want a focused, keyboard-driven workflow, and it sets SigmaOS apart from mainstream browsers.

However, the execution currently falls short. Users report broken extension support, missing passkey integrations, and non-standard navigation that disrupts established habits. Core features like iCloud Keychain, Bitwarden, and Chrome extensions are unreliable or unsupported. Combined with stability issues and unclear development momentum, these drawbacks make SigmaOS feel unfinished despite its innovative vision. For most users, mature browsers like Arc or Safari remain the more practical choice.

ProTip: Bring Your Own Model (BYOM). Some browsers like Brave and Arc let users connect their own API keys for GPT-4, Claude, or Gemini. This is a great way to keep costs flexible, maintain data ownership, and upgrade models without waiting for the browser to support them natively.

6. Sigma AI Browser

Sigma AI Browser Currently in development / early access — users must join a waitlist to try it. The first public beta of its autonomous agent is scheduled for August 2025

The browser includes Deep Research tools for structured insights, text and image generation, fast summarization, and is built on an enhanced Chromium base with a password manager and strong privacy protections.

Developed by Sigmabrowser OÜ (Tallinn, Estonia), the public beta of its autonomous AI agent is scheduled for August 2025.

Key Use Cases:

• Project management: Jira, Asana, Trello — ticket reviews, PR checks, staging tests, status updates.
• Email: Gmail, Outlook — sorting, archiving, mass unsubscribes, notification cleanup.
• Shopping: Amazon — filtering, comparing, cart management, promo codes, delivery tracking.
• Promotions: Searching, testing, and auto-applying best discount codes.
• Budgeting: Collecting transactions from banks/email, categorizing, generating structured reports with charts.
• Resumes & job search: Editing resumes, exporting to PDF, LinkedIn search, automated applications.
• Travel: Booking hotels and flights, essentials (transport, eSIM), day-by-day itineraries.
• Data analytics: Cleaning and formatting spreadsheets, generating TL;DR summaries, creating charts in Google Sheets.

7. Nextbrowser — AI Browser Agent for Professionals

Nextbrowser is a cloud-based AI browser agent built to automate routine web tasks — logins, data collection, outreach, SEO operations — through simple text instructions. It works like a human user (clicking, typing, scrolling) inside a real browser, always online and logged in, with support for multiple regions and saved profiles.

Key Use Cases:

• SEO link building — domain research, outreach, forum posting.
• Social media & account warming — automated activity on X, Reddit, Quora, etc.
• Influencer outreach — collecting contacts and sending messages at scale.
• Monitoring — tracking mentions and competitor activity.
• LLM SEO workflows — integrating with ChatGPT/Claude for localized automation.

Nextbrowser is in early but active development, with growing adoption among marketing and lead generation teams. It shows strong potential for professional web automation, though independent reviews are still limited.

Main Drawbacks of AI Browsers

Most AI browsers require account registration, adding friction and raising privacy questions. Their “innovations” often boil down to embedding a chatbot into the interface — something you can easily replicate by opening a separate AI tab in any standard browser.

Many features are still unstable or limited, and switching browsers means relearning workflows for marginal benefits. While the concept sounds progressive, the real gains over a traditional browser + AI chat are often minimal, making these “AI browsers” feel more like rebranded experiments than essential tools.

🦊 FIY: Currently, there are no major AI browsers built on Firefox’s Gecko engine.
Almost all new AI browsers (e.g. Perplexity, Dia, Sigma, Fellou, Opera Neon) are based on Chromium (Blink) for compatibility and easier AI feature integration.

Top 5 Established Browsers Integrating AI

Big, well-known browsers are jumping on the AI wave too. Instead of reinventing themselves, they’re adding smart assistants, page summarizers, and new integrations to keep up with the trend. These updates aim to make browsing more helpful and efficient without forcing users to switch to completely new tools.

Microsoft Edge — Copilot

Microsoft Edge integrates Copilot directly into the browser sidebar, giving users quick access to Bing Chat and Microsoft 365 tools. It can summarize pages, generate text, help with research, and interact with Word, Excel, and Outlook natively. Copilot also supports context-aware actions, like rewriting text on a webpage or pulling data from open tabs. The deep integration with Microsoft’s ecosystem is its biggest strength.

Opera Aria — Built-In Free AI Assistant

Opera is based on Chromium (Blink), so Aria runs inside the standard Opera browser infrastructure.

Aria is Opera’s free, built-in AI assistant available on both desktop and mobile. It connects to the internet in real time to answer questions, generate text and images, and understand page content. Aria also includes a command-line interface for quick tab and browser management. Unlike many competitors, Aria doesn’t require mandatory registration to use its core features. It’s fully integrated into the regular Opera browser, meaning you keep the standard Chromium-based browsing experience with AI layered on top.

Opera Neon — Premium Agentic Browser

Opera Neon is also built on Chromium (Blink) but uses a custom UI and agentic interaction layer developed by Opera.

Neon is Opera’s new AI-agent browser, separate from the standard Opera build. Its focus is on actions, not just chat. Neon can understand page structure, fill out forms, make bookings, shop, and even create reports, mini-apps, or websites via the cloud. It blends on-device and cloud execution, allowing some workflows to continue offline.

Unlike Aria, Neon is a paid, premium product, currently offered in early access for around $19.90/month. It’s Opera’s push into the “agentic browser” segment — aiming to act on your behalf, not just assist.

Google Chrome — Gemini Integrations

Google Chrome is slowly adding Gemini-powered features, such as page summarization, contextual help, and writing assistance. Early integrations include automatic summaries in the sidebar and help drafting content inside text fields. Since Chrome is the most widely used browser, its AI features focus on lightweight assistance that fits smoothly into existing workflows rather than radically changing the browsing model.

Safari — Siri / Apple Intelligence

Safari integrates Siri and Apple Intelligence features to offer contextual assistance on macOS and iOS. This includes smart summaries, autofill suggestions, natural language search, and page explanations. Apple focuses heavily on on-device processing and privacy, meaning many AI features work locally without sending data to the cloud.

Brave — Leo

Leo is Brave’s built-in AI assistant, designed with privacy as a priority. It can summarize content, answer questions, translate, and analyze documents like PDFs or Google Docs. Users can choose between different LLMs (including their own models) for more flexibility. Leo stands out for combining useful AI tools with strong privacy protections, unlike many cloud-dependent competitors.

Browser with Best AI features

AI is reshaping browsers, turning them from simple search tools into assistants that automate tasks, boost productivity, and personalize the web.

Below is a comparison table outlining the key features, integrations, and automation capabilities of the leading AI browsers.

Browsers with AI free

As AI becomes part of everyday browsing, many browsers now offer free built-in AI tools to boost productivity, simplify tasks, and provide smart assistance. The table below highlights the most useful free features in leading browsers.

Top 5 Best AI Web Browsers

As AI becomes a bigger part of everyday digital life, many browsers now offer powerful AI features for free. These tools streamline browsing, boost productivity, and provide smart assistance. The table below highlights the most useful free AI capabilities in leading browsers.

Main Tasks for AI Browsers

AI-powered browsers are primarily built to streamline research, automate workflows, and enhance productivity. Their core tasks can be grouped into a few key categories:

Privacy-Conscious Workflows

Brave Leo stands out for combining document analysis and content generation with strong privacy protections and support for local/custom models, catering to users who value security as much as functionality.

As part of this article, we’ll also explore the best antidetect browsers and how they handle fingerprint spoofing and identity masking, which are crucial for maintaining anonymity and bypassing tracking online.

Research and Information Gathering

Tools like Fellou.ai, Sigma Browser, and Perplexity AI Comet excel at collecting, analyzing, and summarizing information from multiple sources. They can generate structured reports, scan academic content, or pull data from various websites in a single workflow.

Task Automation

Agentic browsers such as Fellou.ai and Sigma go beyond chat — they can log in, fill forms, navigate websites, and complete multi-step tasks autonomously, making them ideal for complex web operations or repetitive workflows.

For true automation, headless browsers are often required — see more on that in this article about headless browsers.

Content Processing and Generation

Many AI browsers can summarize documents, translate content, write emails, or draft posts, turning them into productivity hubs for research, writing, and communication.

Frequently Asked Questions