Fellou

Perplexity's AI browser with a sidebar assistant that acts across your tabs.

An AI-native Chromium browser from Perplexity that puts a persistent assistant in the sidebar — it summarizes pages, compares products, and takes actions like drafting emails or managing tabs using the context of what you're browsing. Perplexity search is the default, with Deep Research and voice mode built in. Free on Windows, macOS, Android, and iOS; an optional $5/month Comet Plus tier unlocks premium publisher content.

An AI-native web browser with chat and skills built into the URL bar.

An AI-native desktop web browser from The Browser Company, the team behind Arc. Dia bakes a chat assistant and reusable 'skills' directly into the address bar, with awareness of your open tabs and browsing history, so you never need to copy context into a separate chatbot. It launched publicly on macOS in 2025. A free tier covers light AI use; a $20/month Pro plan removes the AI usage limits.

OpenAI's web browser with ChatGPT built in — sidebar, memories, and agent mode.

OpenAI's Chromium-based web browser with ChatGPT woven through it: a sidebar that can summarize, compare, and answer questions about any page, optional browser memories that carry context across sessions, and an agent mode that navigates sites and completes multi-step tasks on your behalf. It launched on macOS in October 2025, with Windows, iOS, and Android versions announced. Free with any ChatGPT account; agent mode requires a paid plan.

Open-source browser automation for AI agents.

MIT-licensed Python framework that connects AI agents to a real browser to navigate, fill forms, extract data, and run multi-step web workflows. It parses the live DOM into a structured view so any model — Claude, GPT, Gemini, Qwen, DeepSeek — can act on it. A hosted Browser Use Cloud adds managed sessions and a fully-hosted agent.